14 best photoelectric sensor

A photoelectric sensor, also known as a photoelectric detector, is a device commonly used in various applications, including smoke detectors, fire alarms, and safety and security systems. These sensors work on the principle of detecting changes in light levels and are vital components in ensuring fire safety and security. Here is what you need to know about photoelectric sensors:

  1. Working Principle:

    • Photoelectric sensors operate based on the interruption or reflection of light. They consist of an emitter and a receiver. The emitter emits a beam of light, and the receiver detects changes in the intensity of that light caused by the presence of an object or particles (such as smoke).
  2. Types:

    • Photoelectric sensors come in different types, including through-beam sensors, retro-reflective sensors, and proximity or diffuse-reflective sensors. In the context of smoke detectors, the most common type used is the scattered light photoelectric sensor.
  3. Applications:

    • Photoelectric sensors have a wide range of applications, including:
      • Smoke Detectors: Photoelectric smoke detectors use a beam of light and a light-sensitive sensor. When smoke particles enter the sensing chamber, they scatter the light, causing a reduction in light intensity. This triggers an alarm to indicate the presence of smoke or a fire.
      • Fire Alarms: Photoelectric sensors are a key component in fire alarm systems.They help detect the presence of smoke early, allowing for rapid response and evacuation.
      • Security Systems: Photoelectric sensors can be used in security systems to detect the movement of intruders, as well as to monitor the opening and closing of doors and windows.
      • Industrial Automation: These sensors are also used in industrial applications for tasks such as object detection, part counting, and quality control.
  4. Advantages:

    • Photoelectric sensors are known for their reliability and effectiveness in detecting smoke and other particles. They are less prone to false alarms caused by cooking fumes or dust compared to ionization smoke detectors.
    • They can detect smoke particles at an earlier stage of a fire, which is crucial for fire safety.
  5. Maintenance:

    • Photoelectric sensors, like all sensors, require periodic maintenance to ensure they function correctly. This includes keeping the sensor area clean and replacing sensors according to the manufacturer's recommendations.
  6. Interconnectivity:

    • Many modern fire alarm systems use interconnected photoelectric smoke detectors. When one detector senses smoke, it can trigger all interconnected detectors to sound the alarm, providing early warning throughout a building.

Photoelectric sensors play a significant role in fire safety, security, and various automation applications. Their ability to detect smoke particles and other objects by measuring changes in light intensity makes them a critical component in maintaining safety and security in homes, commercial buildings, and industrial facilities.

Below you can find our editor's choice of the best photoelectric sensor on the market
  

Seco-Larm E-931-S35RRQ Enforcer Indoor/Outdoor Wall Mounted Photoelectric Beam Sensor with 35 Foot Range

Seco-Larm

Based on 414 reviews Check latest price

Product description

Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor; For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance

SECO-LARM E-931-S35RRQ NIR Reflective Photoelectric Sensor; For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Dark ON operation; Adjustable sensing distance; Compact size



Key Features

  • For outdoors gates, garage doors, etc
  • Weatherproof (IP66) construction for indoor/outdoor usage
  • Dark ON operation
  • Adjustable sensing distance
  • Compact size
  • 12~240VDC / 24~240VAC Operation
  • Current: Up to 40mA@12VDC
  • Bracket and mountinghardware Included
  • Pre-wired 6ft (1.8m) cord
  • New single-gang box and wall-mount brackets available


Specifications

  • Sensing Range: 0.5' to 35' (0.1 - 11m)
  • Current Draw: Standby- 12VDC@20mA; 24VDC@10mA, Active- 12VDC@40mA; 24VDC@20mA
  • Operating Voltage: 12~240VDC or 24~240VAC
  • Response Time: 10ms (Max)
  • Light Source: IR LED
  • LEDs - Red: Active
  • LEDs - Yellow: Standby
  • Output: SPDT Relay Output
  • Switching Capacity: 250VAC/1A, 30VDC/2A
  • Enclosure: IP66 Waterproof
  • Operating Temperature: -4º~131ºF (-20º~55ºC)

  • For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage
  • Dark ON operation, Adjustable sensing distance, Compact size
  • 12~240VDC / 24~240VAC Operation, Current: Up to 40mA@12VDC
  • Bracket and mountinghardware Included, Pre-wired 6ft (1.8m) cord
  • Sensing Range: 0.5' to 35' (0.1 - 11m), Response Time: 10ms (Max)

User questions & answers

Question: Instead of using the reflector plate would reflective tape work
Answer: yes
Question: I am using it to sound an alarm when someone crosses the beam. Using a 12 volt battery. The device has 5 wires. Grey, blue, black, white,brown
Answer: Blue and brown are the power wires-polarity not important. White is the common. Grey is NC Black is NO. IF the alarm circ,unit needs to be OPENED to sound, use the Grey wire. Usually, they are normally open and the circuit needs to be closed to sound, and the Black wirel is used. Use White and one of the others k or Gray.
Question: Have Christmas display,, want to count the car that come through, will this do the trick? The cars willbe running 5 or 10 mph max
Answer: The unit will close or open a set of contacts when the light beam is interrupted. If a counter is connected to the unit it will trigger the counter.
Question: Can I use this powered from my doorbell transformer and have it sound the alternate doorbell when tripped
Answer: You would need to determine the voltage that your doorbell transformer works at. The sensor has 5 wires. 2 power the sensor, it is pretty versatile in the voltage that it works at, so chances are your doorbell transformer will be fine. the last 3 are an single pole, double throw relay/contactor, with a normally open and normally closed output. You will want to connect the normally open output to the doorbell, and the input to the door bell transformer. Be aware that there is potential to burn out your doorbell. Think about your doorbell, when you press the button, and electromagnet makes a striker hit a chime, and then when power is removed, a spring pushes it into a second chime. If someone holds down that doorbell, you get a buzzing sound as the electromagnet is continuously working. If you had this on your driveway, for example, and a car stopped in the beam, the same thing would happen as someone holding down your doorbell button. It could also happen if a leaf fell into the beam and got stuck on the reflector... Chances are this wont be a problem, but you wouldn't want it to happen while you aren't home. There is a fire risk if that door bell magnet or transformer over heated. Consider adding a timer to the circuit, that once it is powered, automatically opens the circuit until it is powered again.
Question: Are the power-lines split in the middle of the board or do they connect all the way through the length of the board
Answer: They connect all the way through the length of the board.
Question: Are the power-lines split in the middle of the board or do they connect all the way through the length of the board
Answer: Mine do not, they split at the center like other boards do. You must jumper pos and neg on each power section to the others. AND you will need a large gauge wire as explained in my review of the board.
Question: is the breadbard flat? is it still flat with 3 or more boards cascaded together
Answer: Flat enough. You can press it down with your hand and it holds shape. It's good enough for breadboarding.

Photoelectric Switch Automatic Dusk to Dawn Photocell Sensor for Most Hardwire Outdoor Lamp Fixtures and Bulbs, UL Listed (2-Pack)

Product description

Summary

The Electronic Photocontrol JL-103 is applicable to control the passage lighting and doorway lighting automatically in accordance with the ambient lighting level.

This product has been listed by UL Inc and is comply with the Standard for Non-industrial Photoelectric Switches for Lighting Control UL773A.

Quick Details:

  • Name: Photoelectric Switch
  • Usage: Auto on/off For Outdoor Lighting
  • Theory: Optical sensor
  • Rated Voltage: 120V AC
  • Applicable Voltage: 110-130V AC
  • Power consumption: 1.2 Watts Max
  • Rated Frequency: 50/60Hz
  • Rated loadings: 500W Tungsten,850VA Ballast
  • On/Off Level: 10-20Lx On; 30-60Lx Off
  • Ambient Temp: -40-158℉
  • Related Humidity: 99%RH
  • Certification: UL listed
  • Warranty: 1 Year

Installation

Disconnect power, remove junction box cover, place the SWITCH in knockout hole (diameter:5/8 inches)and fasten with locknut.

Do not install the switch with the Photocell facing artificial or reflected light. This will cause the unit to cycle on and off at night.

Initial Testing

It is normal for the SWITCH to take several minutes to turn off when first installed.

To test “turn on” during daytime, cover its eye with sliding the metal strip mounted.

Do not cover with finger because light traveling through fingers may be great enough to keep the switch open.

Test will take approximately 2 minutes.

Package Contents:

2 of Photocell Control Sensors

Applications:

Provides automatic control of nighttime security or safety lighting forentrances, recreational areas, farms, walkways, parking lots, and othersimilar applications. Also works well to control protective lighting ofhomes,schools, and commercial buildings.

  • Reliable Quality: The sensor switch has certified by UL. Being UL certified illustrates our dedication to consumer safety, as well as the quality of our products. Another important caveat of UL certification is for insurance purposes and customer security.
  • Dusk to Dawn Feature: This photocell sensor turns your exterior lights on at dusk and off at dawn. It is smart to control the lighting automatically in accordance with the ambient lighting level.
  • Waterproof Feature: Equipped a waterproof cap that intended to double protect the sensor lens. It helps the switch to work better against a hard environment.
  • Wide Applications: The switch inputted voltage is 120V AC. It will be compatible with most lamp fixture: incandescent, fluorescent, CFL, HPS, LEDs. Please note LEDs work with DC and other voltages are not applicable.
  • Guaranteed: We provide a 1-year limited warranty. Please feel free to contact us if you have any questions or quality problems with the sensor. We will respond within 24 hours.

Solus SPC-320 120V Automatic Dusk to Dawn Photocell Photo Control Light Sensor Switch for Hardwire Outdoor Lamp Posts with Ezee Change Plug, Works with Most Fixtures and Bulbs, UL Listed (Single Pack)

Solus

Based on 908 reviews Check latest price
  • SAFETY & SECURITY - This UL Listed Component Switch is safe to use for both commercial and residential outdoor fixtures. Ensures light when it is dark. Keeps surrounding safe and unwanted intruders away.
  • USER-FRIENDLY - Easy to Mount, Easy to Use, and Easy to Change. Works with most fixtures and bulbs for hardwire outdoor lamp posts, only required a 1-3/8" diameter mounting hole. Automatic sensor means no manual operation. And when it is time for a change, you can do so in seconds as this switch comes with our propriety Ezee Change Plug design.
  • ENERGY SAVING & HASSLE-FREE - Conserve energy as switch comes with a light control sensor that will automatically turn your lights on at dusk and offs at dawn. No more worries.
  • VERSATILE - Compatible with most bulbs: up to 300W Incandescent, 54W LED, 39W Fluorescent, or 100W H.I.D. light bulbs. Maximum Wattage: 120V, Up to 60 Watts.
  • SATISFACTION GUARANTEED - Premium Quality Product, with 5 year warranty. Customer satisfaction is our number 1 priority. Our US Customer Support Team is always ready and available to assist you.

User questions & answers

Question: will this work with a cypo-7780-02. these numbers came off the old switch. Thanks
Answer: Not sure, but that is where I got the part number. I took out the dusk to dawn eye and the number was inside on the part. Your part should have a curve at the base where it screws to the post. Mine fit and worked great. I was worried I had to replace the entire fixture cause it's was 11 years old. I was really happy!
Question: Do I need an addaptor to plug into the adaptor plug attached or is it included? Right now my unit is attached to bare witres
Answer: You can do it either with or without plug/ adaptor. The sensor assembly comes as pictured - with plug adaptor. All you will need is three wire nuts to install it. Or you can trim the plug and wire it directly.
Question: if I cover the sensor in daylight will the post light come on to test bulb
Answer: Yes, if it was wired correctly, it will come on test the bulb. Use something kind of dark; a leather glove or dark hand towel works well.
Question: How long does it need to be dark for the switch to activate
Answer: basically when other photo cell lights come on other homes, I used put a piece of black electrical tape over the photo cell to make sure I was done. Works fine. Last one lasted 10 years same type

Product features

RELIABLE

120V Automatic dusk to dawn sensor for outdoor lighting posts. Energy saving switch that turns on at night and stays off during the day. Perfect for lamp posts or lanterns in the driveway and entryway so that your house will be well-lit

EASY INSTALL

Ezee change plug for a fast reliable replacement installation now and in the future. Eye sensor requires a 1 3/8” diameter hole in lamp post to mount.

ENERGY SAVING

Conserve energy as switch comes with a light control sensor that will automatically turn your lights on at dusk and off at dawn.

Twidec/ 0-2M Adjustable Indoor Wall Mounted Photoelectric Beam Sensor NPN (NO Or NC Switchable) photoelectric Sensor Switch Proximity Switch 2m line Cable Induction With Reflector Panel E3Z-R61-Z-G

Based on 31 reviews Check latest price

Product description

Photoelectric Switch control by infraredray, as a apporach sensor, includeing a transmitter and receiver in it. A retroreflective arrangement places the transmitter and receiver at the same location and uses a reflector to bounce the light beam back from the transmitter to the receiver. An object is sensed when the beam is interrupted and fails to reach the receiver.

Can be applied in security system, manufacturing industry.   Weatherproof (IP66) construction for indoor/outdoor usage.Safety sensor for garage doors or outdoor gates,Overhead door security sensor,Industrial automation, Detect small objects on manufacturing line,Entry detection for store fronts,Assist in measuring parking distance,Alarm sensor etc..

  • Supply Voltage:10-30V DC;Type : NPN(Switchable normally open or normally closed);Wire Type : DC 3 Wire
  • Sensory Distance : 0-2m(Adjustable distance);Color : Black;Working temperature: -25-55 degrees.
  • Body Size:34mm x11mm x 21mm/1.34" x0.43" x0.82"(L*W*H);Cable Length : 200cm/78.7";Weight : 70g
  • Package Content: 1 x Photoelectric Switch+1 x Mounting Bracket(with screws,nut)+1 x Reflector Panel
  • This product is widely used in outdoors gates, garage doors for indoor/outdoor usage etc.

User questions & answers

Question: When the beam is broke can this product call a house or cell phone
Answer: This needs to be connected to other sensing equipment, which the product itself does not have
Question: What's the max constant current that I can sink through this at 5V
Answer: Specifications state: 100ma (100 milli-amps), or 0.1A. Just enough to control a small relay. The relay can then do the heavy work. I used a small relay in my circuit, which then controlled a large solenoid. Worked perfectly. Remember to adjust the sensitivity so you don't get any false trips.
Question: Will thos unot work on a Co+Z sliding gate automatic openner
Answer: I returned it because it was too small.
Question: Is there any documentation available? I received the unit, but there is no description of the colr code/function of the three wires to hook it up
Answer: Black = load Brown = positive Blue = negative

Pack of 2, Outdoor Hard-Wired Post Eye Light Control Electric Resistor Photocell Light Sensor, Dusk to Dawn Sensor, Convert Fixtures to Auto On at Night, LED HID CFL JL-103A

Creative Hobbies

Based on 444 reviews Check latest price

Product description

Pack of 2 Photoelectric Switches for one low price! 3 YEAR WARRANTY! Functions as a light sensitive switch that will turn off devices in the presence of light and turn them back on in the absence thereof. Ideal for wiring into a lamp or lighting system requiring photoelectric automation. Provides security by discouraging intruders through automatic lighting of property at night. Perfect replacement photocontrol for pole lanterns, yard lights, twin floodlights, area lights, entry lights, walkway lighting, and barn lights. Will increase energy efficiency and bulb life by reducing daily operating life. Time delay prevents interference from flashes like headlights, lighting, etc. Works With CFL, Incandescents, Mercury Vapor, Metal Halide, Sodium Vapor, LED, Halogen and Fluorescent Bulb.

  • 2 PACK OF OUTDOOR LIGHTING CONTROLLERS FOR HOME SAFETY: these outdoor light controllers automate 2 lights, lamp posts or lanterns in the driveway and entryway so that your house will be well-lit and will less likely attract burglars
  • AUTOMATIC OUTDOOR LIGHT REMOTE CONTROL: with the photocell light sensor, the outdoor lighting remote control can sense the amount of sunlight and automatically switches on at dusk and off at dawn; this saves you the trouble of having to remember to switch it off at certain times
  • WEATHER-PROOF REMOTE CONTROL FOR OUTDOOR LIGHTS: this remote control for outdoor lights has a RAIN TIGHT case to protect it from the elements, dirt and dust - other brands are not rain tight.
  • UL LISTED & CERTIFIED SAFE Controller features 7 Inch Long Wire leads and easy wiring.
  • 3 YEAR WARRANTY - Dimension 1.12" x .84" x 2.05" 5/8"-18 thread nipple Nipple length 20mm (3/4") 120VAC, 50/60HZ 4.2AMP, 500W Tungsten 7.1AMP, 850VA Ballast On-Off Levels: 10~20Lx On(Dusk); 30~60Lx Off(Dawn)

User questions & answers

Question: will the sensor be affected if the sensor is facing the west
Answer: I don’t think so. Mine face SW, no issues. I installed these on 2 outside garage lights replacing the screw in bulb sensors. Works perfect for me.
Question: Is it compatible with GU24 bulbs? I have tried 3 different ones and they are constantly flickering once is dark(ish
Answer: Bulb type should not matter, as long as you have enough power to supply it, 110v a.c.. This could also happen if a light source is facing the eye and tripping it.
Question: I have read in the questions that some people have wired this inline. If you wire this inline with an extension cord, which wires do you connect
Answer: First, I wouldn’t use an extension cord. Buy some wire, black, white and green. You may also need some conduit to do it right. Tap into an electrical source, like a nearby plug (where you were going to plug in the extension cord). Run the white and green wires to the light and match colors. Run the black wire to the photo call and connect it to the “source”. Then run a black wire from the other side of the photo Cell to the light. Suggest you hire a licensed electrician to do this. You don't seem like you know too much about electricity.
Question: will this handle 4 led wall mount lights? Using on a covered walk bridge
Answer: The description says for Incandescent bulbs. I tried to use these on LED bulbs with mixed results. I would not use this product with LED bulbs.

Taiss/30cm Adjustable M18 Diffuse Reflection photoelectric Switch Sensor Optical Three Lines PNP NO(Normally Open)Proximity Switch 6-36VDC E3F-DS30P1

Taiss

Based on 14 reviews Check latest price

Product description

Inductive type: diffuse reflection; Induction distance: 30cm adjustable; Working voltage: 6-36V both can The positive, blue, black, black, black. Working environment: temperature -40 to +70 degrees celsius; Protection level: IP61-IP67; Corresponding time: the function reset time is below 2.5MS; Object: transparent, opaque body; Differential distance: the detection distance is below 20%; Insulation resistance: greater than or equal to 20M ohm; Note: 1, switch on the power should be connected to check the wiring is correct, check whether the voltage parameters for the rated value; 2, switch load can not be short circuit, the load should not exceed the maximum output current; Package Content :1 x photoelectric sensor switch

  • Product Name : Photoelectric Switch;Sending Light : Infrared Rays;Model :E3F-DS30P1
  • Wire Type : DC 3 Wire, Proximity-sensing / Diffuse Type;Type : PNP NO ;Voltage : DC 6-36V
  • Current : 300mA;Sensory Distance : 30cm;Head Diameter : 1.6cm/0.6'' ; Thread diameter: 18mm
  • Body Size : 2.3 x 7cm/0.9" x 2.7'' (Max.D*L);Material : Plastic, Alloy;Color : Black, Orange
  • Cable Length : 120cm/47'';Weight : 55g;Package Content : 1 x Photoelectric Switch

User questions & answers

Question: What is the adjustment screw for? is the 30cm mentioned the minimum or maximum range? what does the red led tell you
Answer: The maximum sensing distance is 30cm, the red probe is PMMA light transmission mirror, the response is more sensitive
Question: Does the npn no version need a pull up or pull down resistor? what value
Answer: This is just an inductive switch and has no other effect
Question: Pero traslucidas podra ver es para vidrio sin color
Answer: Action indication: red LED Detectable objects: ≧Φ18mm opaque objects Detection distance: 30cm Distance adjustable range: 5-30cm
Question: What is the maximum rpm this sensor can handle? fyi, i need something that can go as high as 40,000 rpm
Answer: The specs state 2.5 ms reset time. According to my calculations, 40,000 rpm with one reflective strip equates to a reset time of less than 1.5 ms. Therefore it would not be expected to work.

AC 120V Dusk to Dawn Sensor Photoelectric Switch Light Photocell Sensor Lighting Switch

Zerodis

Based on 219 reviews Check latest price
  • Brand new photoelectric switch with automatic illumination detection circuit, and it will shut down during the day and open during the night automatically.
  • Perfect for wiring into a lamp or lighting system requiring photoelectric automation.
  • Easy to install, it can work with most types of light lamps, such as LED, incandescent, halogen and fluorescent bulb, etc.
  • Makes your lighting is only used when it should be. Helps to increase energy efficiency and bulb life by reducing daily operating life
  • Ideal for putting outdoor lighting, controls driveway and walkway lighting, post lamps, pole lanterns, coach and entry way porch lights.

User questions & answers

Question: What is the hole size to drill for the eye
Answer: It says 3/8" but slightly larger hole is actually needed. I used a round file and just enlarged the 3/8" hole I drilled.
Question: The first instillation the light flickers on off in the day time!!!! is there anything to do to adjust the light
Answer: I have these switches installed with no problem. One of two things can be cause of flickering: (1) wired wrong - black switch wire goes to black "hot" wire from house, red switch wire goes to black lamp / light wire, white wire goes to white wires from lamp and house (if you switch red and black wires around, it'll turn on / off); or (2) photocell is picking up light from lamp itself. I installed mine in bottom of lamp casing pointing down - away from lamp light source. Hope this helps.

Product features

Dusk to Dawn Sensor Photoelectric Switch

Our high quality photoelectric switch is a great way to reduce energy consumption by turning your lighting fixtures on automatically when natural light is reduced. It provides much security by discouraging intruders when turning on the light.

Rated Frequency: 50/60Hz, Power Consumption: 0.8W, Light Sensitivity: 10-20LUX On, 30-60LUX Off, Anti-interference Delay: 15-120s, Environmental Temperature: -40℃~+75℃, Relative Humidity: 99RH, Service Time: >5000 cycles, Lead Wire: AWG#18, Item Size: Approx. 3.53 x 2.1 x 1.35cm / 1.39'' x 0.83'' x 0.53''.

20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino Smart Car Robot Raspberry Pi 3

Based on 23 reviews Check latest price

Product description



20 Pieces IR infrared obstacle avoidance sensor module 3-wire reflective photoelectric sensor module compatible with Arduino smart car robot Raspberry Pi 3



Feature:

When the module detects an obstacle in front of the signal, the green indicator lights on the board level, while the OUT port sustained low signal output, the module detects the distance 2 - 30 cm, detection angle 35 degree, the distance can detect potential is adjusted clockwise adjustment potentiometer, detects the distance increases. Counterclockwise adjustment potentiometer, reducing detection distance.



Infrared reflection detection:

The sensor active infrared reflection detection, target reflectivity and therefore the shape is critical detection distance. Where the minimum detection distance black, white, maximum; small objects away from a small area, a large area from the grand.



Connect to:

The sensor module output port OUT port can be directly connected to the microcontroller IO can also be directly drive a 5V relay; Connection: VCC-VCC; GND-GND; OUT-IO.



Usage:

Can be applied for 3-5V DC power supply modules. When the power is turned on, the red power indicator light. Using the comparator LM393. Each module has been shipped threshold comparator voltage adjusted by potentiometer good, non-special case, do not adjustable potentiometer.



Specification:

Interface:

1. VCC: external 3.3-5 voltage (can be directly connected to 5v MCU and 3.3v MCU)

2. GND: GND external

3. OUT: small board digital output interfaces (0 and 1)

Connection : VCC-VCC; GND-GND; OUT-IO

Board size: 3.1 x 1.5 cm/ 1.22 x 0.59 inch, with the screw holes of 3mm, easy fixed installation



Package includes:

20 x Infrared obstacle avoidance module



Note:

The mention of brand names and any related models above are only for purposes of demonstrating compatibility, our trademark is Frienda.

  • Feature: there is a pair of infrared transmitting and receiving tube of the IR sensor module, tube infrared emit a certain frequency, when the detection direction meets the obstacles (reflecting surface), reflected infrared receiving tube, after the comparator circuit processing, green indicator will light up, at the same time signal output interface to output digital signal (a low level signal)
  • Function: the IR infrared obstacle avoidance sensor module can be applied in robot obstacle avoidance, obstacle avoidance car, line count, black and white line tracking, etc.
  • Adjustable distance: the detection distance of the infrared module is 2 to 30 cm, and the detection angle is 35 degrees, the distance The distance at which the potential can be detected is adjustable
  • Easy to use: the output port OUT sensor module can be directly connected to the microcontroller IO port, you can directly drive a 5V relay
  • Application: the IR sensor module can be applied for 3-5V DC power supply modules; There is a red power indicator

User questions & answers

Question: How output voltage changes when a obstacle moves to the distance can be detected
Answer: When the obstacle moves far away, the output voltage is 3.3V-5V.

First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup

FIRST ALERT

Based on 1 reviews Check latest price

Product description

The First Alert BRK 7010B hardwire photoelectric smoke alarm with battery backup is a hardwire 120V single or multiple station smoke alarm designed for residential home use and institutional locations such as hospitals, hotels, motels, dormitories and other multiple family dwellings. This alarm is inter-connectable and can be installed and linked with up to 18 compatible devices (up to 12 smoke alarms and 6 compatible devices like bells, horns and repeaters) so that when one triggers, all alarms sound. The First Alert BRK 7010B emits loud 85dB audible alarm. The alarm also features a photoelectric smoke sensor, which is particularly effective at detecting slow smoldering fires. The Frist Alert BRK 7010B hardwire smoke alarm with battery backup is packed with convenient features. The single test/silence button silences a non-threatening alarm or low battery warning; plus allows you to test the unit's functionality quickly. The latching alarm indicator will automatically identify which unit initiated the alarm if alarms are installed in a series – helping identify the initial location and source of an incident. The smoke detector also includes an optional drawer and mounting bracket lock to prevent tampering or removal of the 9-volt battery. End of life signal provides audible notice when the alarm needs to be replaced after 10 years of service. This alarm is backed by a 10 year limited warranty and is tested to meet UL standards 217. Includes smoke alarm, mounting bracket, 9-volt backup battery and user manual.

The BRK hardwire smoke alarm with photoelectric sensor is designed to reduce common "nuisance" alarms. It's an excellent choice for installations in or near kitchens, near fireplaces, or in hallways directly outside bathrooms, utility rooms, or other areas prone to steam. This alarm is also a popular choice for hotel/motel applications.

The 7010B AC-powered smoke alarm with photoelectric sensor includes these features:

  • Photoelectric sensor which is more effective at detecting smoldering fires which smolder for hours before bursting into flame.
  • 120-volt VAC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
  • Quick plug-in power connector for easy installation.
  • 9-volt battery backup for peace of mind during power malfunction.
  • Alarm indication which in an interconnected system, automatically identifies which unit initiated the alarm.
  • Optipath 360 technology allows 360-degree access to the layer of air on the ceiling or wall that carries the fire signatures (smoke, combustion particles and volatile components).
  • Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
  • Locking feature for tamper resistance.
  • 10-year limited warranty.
All BRK Electronics smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty.--Bree Norlander

What's in the Box

One smoke alarm, one 9-volt battery, and user's manual

  • 120 volt hardwire smoke alarm with photoelectric sensor and battery backup
  • Features convenient 9 volt battery backup, silence/test button, dust cover, 85 decibel alarm
  • Inter connectable with BRK and first alert hardwired smoke and carbon monoxide alarms
  • Intuitive latching alarm indicator identifies which unit triggered alarm. Backed by 10 year limited warranty and tested to meet UL 217 standards
  • 85 decibel alarm
  • Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

User questions & answers

Question: In two places, the description says this unit is red plastic. Is this true
Answer: They are white with a red plastic dust cover. The red plastic dust cover is for use when you are painting or remodeling to prevent particulates from entering alarm and setting it off.
Question: The photo for this product indicates that this is a dual alarm (both p and i are shown on front of unit). Just supposed to be just photoelectric
Answer: Yep, they are showing the wrong picture. This is a photoelectric model only. The dual ion/photoelectric hardwire detector is BRK 3120B. I realize your question is old....I'm answering it for others...
Question: I have 20 year old First Alert alarms with incompatible wiring. Does this unit come with a new wiring harness to connect to the AC line
Answer: Yes, this comes with a 3 wire harness that gets hard wired to your existing electrical and connects to the back of the fire alarm. Black and white for power and red to link alarms together. It does not include any adapters so you will need to disconnect the power and replace the existing harness with the one included with the alarm.
Question: on the back there should be a number like +/- obs ft % or a sensitivity range could you please read the numbers form me please thank you
Answer: SMOKE SENSITIVITY: 1.18 to 2.83 %/FT. OBS.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Taiss/ 1 Pair M18 Infrared Ray Through-Beam Reflection Optical Photoelectric Switch Sensor Three Lines NPN NO 6-36VDC Proximity Switch Inductive Distance 5M with mounting Bracket E3F-5DN1-2Z

Taiss

Based on 12 reviews Check latest price

Product description

Welcome to our Store The products we sell are cheap and beautiful?There are a large number of customers trial?Our photos are taken in kind, do not do any Landscaping. The company's business philosophy: China's very cheap high-quality products sold all over the world, we also sell only high-quality products?"Service first, quality first" principle.

  • Product Name : Photoelectric Switch;Sending Light : Infrared Rays;Model :E3F-5DN1
  • Wire Type : DC 3 Wire, Proximity-sensing / Opposite Type;Type : NPN NO ;Voltage : DC 6-36V
  • Current : 300mA;Sensory Distance : 5m;Head Diameter : 1.6cm/0.6'' ; Thread diameter: 18mm
  • Body Size : 2.3 x 7cm/0.9" x 2.7'' (Max.D*L);Material : Plastic, Alloy;Color : Black, Orange
  • Cable Length : 120cm/47'';Weight : 110g;Package Content : 1 Pair x Photoelectric Switch + 2 x mounting bracket

User questions & answers

Question: Does this actually have an infrared beam or is it visible
Answer: E3F-5DP1-2Z Is Infrared light is not visible
Question: what is output voltage and amp
Answer: This cannot be outside the user This is not waterproof
Question: Can this be used on an esp32 node mcu
Answer: You'd better judge according to the working principle of your machine and the working parameters of our switches
Question: Can someone recomend a 5-6 didget counter that works with this switch? 12-volt dc would be nice. thanks
Answer: Is this product ASIN:B07R1YB176 what you want? DC12v 0-999999 Digital LED Counter.

Taiss/Indoor Wall Mounted Photoelectric Beam Sensor E3JK-R4M1 12-240VDC 24-240VAC Retroreflective photoelectric Sensor Switch Proximity Switch 2M Cable Induction 3M

Taiss

Based on 38 reviews Check latest price

Product description

Welcome to our Store The products we sell are cheap and beautiful?There are a large number of customers trial?Our photos are taken in kind, do not do any Landscaping. The company's business philosophy: China's very cheap high-quality products sold all over the world, we also sell only high-quality products?"Service first, quality first" principle.

  • Special attention:If you are not clear about the product connection method, please refer to the wiring diagram of this product.If you receive a switch that is incompatible with your application or does not work properly, please contact us by email in time, and we will solve your problems for you.
  • Output Current: 2A; Detection distance: 3m; Response Time: < 30ms; Induction Frequency: 200HZ.
  • Body Size: 2.00x1.98x0.75 inch ; Weight: 185g.Special note: If this photoelectric switch is used to control the alarm system, please install it together with the relay. Otherwise, the switch will not work.
  • Modle: E3JK-R4M1; Relection Type: Specular Reflection; Supply Voltage: 12-240VDC 24-240VAC;Load Rating: 3A 250VAC.Indicator Light Color: Red; Current consumption: 15mA; Working temperature: -25-55 degrees.
  • Package Content: 1 x Photoelectric Switch, 1 x Reflector Panel, 1 x Mounting Bracket(with screws,nut).If you have a problem with the knob you received, please contact us by email in time.

User questions & answers

Question: What is wire/cable length
Answer: The length of cable is about 175cm.
Question: is it visable light or infrared beam
Answer: It is infrared.
Question: Is this sensor perfectly silent, or can you hear an internal switch click when the beam is broken
Answer: You can hear a click
Question: Will this sense transparent bottles going by it on a conveyor belt
Answer: If it is very transparent, there is no way to detect it. If it is translucent, it can be detected.

HGG 4 Pack Outdoor Photoelectric Sensor,Dusk to Dawn Swivel Mount Conduit Lighting Control with Photocell,Automatic Adjustable Photo Sensor Switch for Indoor and Outdoor Light

Based on 68 reviews Check latest price

Product description

☀ Specification:



●Rate Voltage: 120VAC



●Applicable Voltage: 110-130VAC



●Rated Loadings: 1800W Tungsten, 1800VA Ballast



●On - off Levels:10-20Lx On(Dusk); 30-60Lx Off(Dawn)



●Ambient Temp: -40℃~+70℃



●Related Humidity: 96%



●Power Consumption: 1.5VA Max



●Leads Length: 150mm or Customer request



●Electrical Life: 6500 cycles



●Size of Each(Inch): 3.3*1.3*1.9



☀ Installation



●The wires connect directly to electrical box with standard ½ pipe thread.



●Disconnect the power,insert the screw thread into the knockout located side of the transformer,and secure with rubber gasket and zinc alloy lock nut.



●Do not install the switch with the photocell facing the artificial or reflected light.



☀ Initial Testing



●It is normal for the switch to take a few minutes to turn off when it is first installed.



●To test for "on" during the day, cover its eye with black tape or other opaque material.



●Do not install the switch with the photocell facing the artificial or reflected light.



☀ Package Included:



●4*Outdoor Photoelectric Sensor

  • Smart Auto Photocell Sensor : Automatically turns light on at dusk and off at dawn,giving you energy savings and convenience without the need for manual operation.Rate Voltage: 120VAC,Applicable Voltage: 110-130VAC, Rated Loading: 1800W Tungsten, 1800VA Ballast.
  • Time Delay Function : Accurately judges natural light, won't be triggered due to occasional light such as car headlights, lightning or other temporary light.It's suitable for parking lot, street lighting, outdoor lighting, factory, indoor lighting, pedestrian pathway and landscape lighting.
  • Adjustable Light & Swivel Design: You can adjust the angle as your idea. The device swivels for optimal light positioning, focusing light on where you need it to be is effortless.
  • IP 65 Waterproof : The casing is made from high quality polycarbonate and polycarbonate,which are corrosion preventive and waterproof to ensure longer life.
  • Security: The outdoor lighting control can simulate home occupancy to deter intruders when you are away from home.It's compatible LED,CFL,fluorescent,incandescent and other types of bulbs.This is a must-have safety item for vacation homes and vacant rental properties.

User questions & answers

Question: Csn I have a conection schematic? or istructions on how to conect it
Answer: From line voltage connect black wire to black on photo cell. Also connect white to white on photo cell then connect photo cell red to black terminal on light. To complete circuit connect photo cell white to light white terminal. You are interrupting the line voltage (black wire with the photo cell output on the red wire) to your light.
Question: What size is the threaded connector
Answer: 1/2" thread connection for most common outside electrical boxes.

Supreform IP67 Waterproof 40 Feet Range 10-30VDC Retro-Reflective Photoelectric Beam Sensor for Gate Opener, Garage Door Sensor, Driveway Alarm Sensor Switch, Protective Metal Cover Included

Based on 11 reviews Check latest price

Product description

1.Product Description:

The Supreform retro-reflective photoelectric beam sensor is an ideal accessory for your existing gate opener and garage door opener. It’s compatible with most brands gate opener, garage door opener and other security systems with both normal open and normal closed dry contact output.



The kit includes an extra waterproof cover for sensor and reflector can prevent the condensate on the lens and also block direct sunlight which can improve the reliability and service life of the sensor.

The kit includes an optional 10K resistor for the gate opener which monitors presence and operation of a photoelectric sensor.

The kit includes the brackets and mounting hardware for installation.

The big size of lens makes it’s easy to align the sensor with the reflector when installing. More Sensitive! Strong Anti-interference Ability!

The sensor is pre-wired 6.6ft (2m) cord for easy wire connection.

The photoelectric beam sensor is free of error operation when detecting the car with bright coating and chrome plating decorating strips.

It’s designed for outdoor use with extra high protection degree IP67.

It can be powered by wide range input voltage 10-30VDC.

We guarantee to answer all your questions within 24 hours.



2.Technical specifications:

Detection Method: Retro-Reflective

Angle: 1.5o approx.

Max. Sensing Range: 40 Feet (12 m)

Supply Voltage: 10-30VDC

CurrentDraw:Standby 30mA; Active 70mA

Output: Relay SPDT

Output Capacity: 1A/30VDC, 1A/250VAC

Protection Degree: IP67

LEDs - Green: Power on

LEDs - Red: Alignment

Ambient Temperature: -4-131 °F(-20-55 ℃)



3.Contents:

1 x Retro-reflective Photoelectric Beam Sensor;

1 x Reflector;

1 x Waterproof Metal Cover for Sensor;

1 x Waterproof Cover for Reflector;

2 x 10K Resistor;

1 x User Manual;

1 Set of Installation Accessories.

  • IDEAL FOR OUTDOOR USE – Ultrasonic Welding Technology for extra high protection degree IP67. No worry about the moisture getting into the case! Extra waterproof cover for sensor and reflector included in the kit can anti the influence of water to reflected light!
  • UNIVERSAL –Compatible with most brands of gate opener and garage door opener either photoelectric sensor is monitored or non-monitored.
  • BIG SIZE OF LENS for easy alignment when installing. More Sensitive! Strong Anti-interference Ability! Pre-wired 6.6ft (2m) cord for easy wire connection.
  • LONG SENSING RANGE - Up to 40 feet (12m).
  • FREE OF ERROR OPERATION when detecting the car with bright coating and chrome plating decorating strips.

User questions & answers

Question: can i use this as a safety sensor for my garage? can i install it on the lmep terminals for the door
Answer: The sensor is a universal photoelectric sensor. It integrates both NO (normally open) and NC (normally closed) dry contact relay outputs. You can use a jumper wire or a splier to short the the LMEP terminals temporarily when the door opener is closing, if the door opener would reverse, then the sensor is compatible with the garage door opener. Otherwise the sensor can not be used with the opener.
Question: Will this work to replace the existing on an eagle gate opener model 1000 psf
Answer: Yes, the photoelectric sensor is compatible with Eagle 1000 series gate opener. It can be replaced with your existing sensor directly. Please note the NO/NC output must be selected correctly which according to your control board DIP switch setting of the REVERSE LOOP.
Question: Is this unit infra-red or visible light
Answer: Visible light
Question: Is this unit UL325 compliant
Answer: This is not a UL325 certificate sensor. But there's a 10K resistor included in the kit which makes it can be used for some gate opener as a monitored sensor.

X-Sense Smoke Detector Alarm, 10 Years Battery-Operated Smoke and Fire Alarm with Photoelectric Sensor and Silence Button, Compliant with UL 217 Standard, SD06, 5-Pack

X-Sense

Based on 241 reviews Check latest price

Product description

Model SD06, pack of 6

  • 10-YEAR BATTERY LIFE: Equipped with a sealed 10-year lithium battery for continuous power with no replacement required during the 10-year life of the alarm; eliminates any worry about battery removal or unauthorized deactivation of the alarm
  • ACCURATE & RESPONSIVE: Adopts the most advanced photoelectric sensor, enabling the alarm to quickly detect dangerous smoke levels from slow-burning, smoldering fires; provides the earliest possible warning of fire while minimizing false alarms
  • SELF ACTIVATION: This alarm will automatically activate when it is installed into the mounting bracket; the TEST/SILENCE button allows you to temporarily silence nuisance alarms, and the silence mode cannot be activated unless the unit is in alarm mode
  • AUTO-CHECK FUNCTION: Constantly monitors itself and quickly warns you of faults or a weak battery; clearly informs you of the working status of the alarm with its 85 dB alarm and 3-color flashing LED indicator
  • EASY INSTALLATION WITH GUARANTEED QUALITY: Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; we provide a 60-day money-back guarantee and a 5-year warranty

User questions & answers

Question: Does fit right in to the bracket, to replace an existing ceiling smoke alarm
Answer: You must use the bracket designed for this unit.
Question: Is this hardwired or battery power only
Answer: Ours is battery powered. Lithium battery comes with it and is sold as a 10 year battery.
Question: does this interconnect
Answer: No...There separate Smoke Alarm Detectors and they’re sealed.....
Question: Is the green light on all the time
Answer: No, it blinks once per minute.

Product features

LED Indicator

This alarm uses a 3-color LED indicator (red, green, yellow) combined with the alarm sound, making it easy for you to check the alarm status.

Fewer False Alarms

Adopting advanced photoelectric technology, this alarm ensures more accurate alarms by taking 3 separate smoke samples before alerting, minimizing false alarms to avoid waking you from sleep.

Premium Quality

Made with an upgraded premium PC plastic housing and internal insect-proof stainless-steel mesh, this alarm is fire-retardant, high temperature resistant, and corrosion resistant. Reliability, high quality, and excellent performance maintain the alarm's functionality for 10 years.

Alarm Installation Guides

We recommend that you install a smoke alarm on every floor of your home, in hallways, between the sleeping and living areas, and underneath and in the junction of stairs.

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