12 best pir sensors

Product description

Description:



Condition:100% brand new and good quality

Use: This PIR motion sensor can automatically and quickly open various types of incandescent, fluorescent lamps, buzzer, automatic doors, electric fans, automatic washing machine and dryer Machines and other devices, is a high tech products. Especially suitable for enterprises, hotels, shopping malls, warehouses and family aisles, corridors and other sensitive Sense of region, or for the security zone automatic lighting, lighting and alarm systems.

Also, it can work with Arduino or Raspberry Pi projects

As per the HC-SR501 data sheet, stops detecting ("detection range is shorter") as temperature approaches 30 degrees celsius (approximately 90 degrees fahrenheit).

These units have the through-holes to add a thermistor to improve high temperature performance, if one has a thermistor to add.

Easy to set up. Pins fit well into female Dupont wires for prototyping.

Features:

Product Name: HC-SR501 Body Sensor Module

Operating voltage range: DC 4.5-20V

Quiescent Current: <50uA

Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)

Delay time: 0.5-200S(adjustable) the range is (0.xx second to tens of second)

Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds

Board Dimensions: 32mm*24mm

Angle Sensor: <100 ° cone angle Lens size

HC-SR501 Sensor Diameter:23mm(Default)



Package Included:

5 X HC-SR501 PIR Infrared Sensor



Questions

Q: What is the level output of these?

Q: I connected this to raspberry pi (5v) and it randomly activate without any movement. Is that normal?

Q: What is the delay adjustment and how to change it using the small dial?"

Q: Will it control 12 volt mini LED lights in my kitchen cabinets?



If you're interested in these questions, please contact us for the answers.

• 🚩 This HC-SR501 PIR motion sensor can turn on devices by detected motion. Automatically and quickly open various types of incandescent, fluorescent lamps, buzzer, automatic doors, electric fans, automatic washing machine and dryer Machines and other devices.
• 🚩 Using Potentiometer 105, output timing is from 0.5S to 200S. Operating voltage range: DC 4.5-20V，Quiescent Current: <50uA Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)
• 🚩 Usage: HC-SR501 can use as a hightech products. Suitable for companies, hotels, shopping malls, warehouses and family aisles, corridors. Or use for the security zone automatic lighting, lighting and alarm systems
• 🚩 How to email us? Please click “Stemedu”(you can find "Sold by Stemedu" under Buy Now button), in the new page, click “Ask a question” to email us

User questions & answers

Question:	Is there a case / enclosure for this
Answer:	They were too small for my sprayer, I don't know the maker of mine they just look ok in the pictures.
Question:	do the jumpers have to be soldered
Answer:	That tip should fit on any smith sprayer with the right connectors. As far as a RoundUp sprayer I don't know.
Question:	What is the spacing on the 3 header pins? (Ground, Signal, Power
Answer:	I don't own a round up sprayer so I don't know.
Question:	Is there a place to add photo resistor in the board
Answer:	I wouldn't bet on it.

• Use Potentiometer 105, output timing is from 0.5S to 200S. Same product link https://www.amazon.com/dp/B07CSM3K63
• NOTE: On this retrigger jumper is a solder jumper, and you need solder it by yourself
• Pls note that there is no IR emitter in this module, the principle of PIR sensor is to detect the infrared radiation emitted by the human body, it only have a IR sensor (cell)
• Package Included: 5 X HC-SR501 PIR Infared Sensor. If any question, pls contact us by email. You can find " Sold by DIYmall" under Buy Now button, click "DIYmall" and you will get to a new page, click "Ask a question".

User questions & answers

Question:	Can I use this with a microbit
Answer:	I am not familiar with the litemyfire so I can not compare. These rods are approx 3" long with the thickness of a pencil. They come in a really nice container with loops. Container can work as a great tinder box as well.
Question:	Can i hook this directly to the item i want to switch? it’s dc current
Answer:	The material of the 2 products is the same. The big one is easier to get sparks because of more interface with scraper. However, if you believe your scraper is excellent, you can also get tons of sparks from the small rods. The blade of an art knife is a good scraper. Check out our video of the 1/2 rod: https://youtu.be/3EtjPNZnwFQWe'll post a video of the small rods soon later. Please subscripe our channel.
Question:	How would you describe the range and sensitivity of these? I need to detect when motion stops in a 12x14 room of people
Answer:	I would venture to say that they are much too large for that. Besides, there is only one hole on one end, you'd need one on each end to properly hold it in place. For what you want to do, I'd recommend checking these out: https://www.amazon.com/bayite-Survival-Drilled-Paracord-Bracelet/dp/B00PSGOH3C/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1484308685&sr=1-1&keywords=Flint+stick+drilled
Question:	Is the sensitivity adjustable
Answer:	No,they come in a plastic bag and that bag is put into a bubble-pack envelope. I think they are a great value.

Product features

HC-SR501 PIR Sensor Sensitivity and Time Delay is adjustable

There are two potentiometers onboard.

One is to adjust the sensitivity, and the other is to adjust delay time.

Also there are two trigger mode. One is Single trigger mode, which means that delay is started immediately upton detecting motion, and continued detection is blocked. The other is Repeatable trigger mode, timely delay is re-started every time motion is detected.

Product description

Product description:

Condition:100% brand new with good quality

Product Type: HC--SR501 Body Sensor Module

Operating voltage range: DC 4.5-20V

Quiescent Current: <50uA Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)

Delay time: 5-18S(adjustable) the range is (0.xx second to tens of second)

Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds

Board Dimensions: 32mm*24mm

Angle Sensor: <100 ° cone angle Lens size

Sensor Diameter:23mm(Default)



  Applications:

*Security Products

*the human body sensors toys

*the human body sensor lighting industrial automation and control, etc

Use:

It can automatically and quickly open various types of incandescent, fluorescent lamps,

buzzer, automatic doors, electric fans,automatic washing machine and dryer

Machines and other devices,is a hightech products. Especially suitable for

enterprises, hotels, shopping malls, warehouses and family aisles, corridors and

other sensitive Sense of region, or for the security zone automatic lighting, lighting

and alarm systems.



Package Included:

3* HiLetgo HC-SR501 PIR Infared Sensor

• Operating voltage range: DC 4.5-20V
• Quiescent Current: <50uA Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)
• Delay time: 5-200S(adjustable) the range is (0.xx second to tens of second)
• Board Dimensions: 32mm*24mm
• Angle Sensor: <100 ° cone angle Lens size sensor:Diameter:23mm(Default)

User questions & answers

Question:	Do these have to be used with Arduino or can you wire them in a circuit
Answer:	Hello friend. The dimensions of this square waterproof match(L: 6inch, W: 0.5inch, H: 0.5inch) Hope this helps!
Question:	Does anyone have the specs on the LDR that can be added to these boards
Answer:	Hello dear, this pocket fire bellow can let the fire that is about to go out blow and ignite the fire quickly when you start a fire outdoors.
Question:	can these be hooked in a circuit without an Arduino
Answer:	Hi dear, it made from Iron, Magnesium and mostly of an alloy of rare earth metals called mischmetal with an excellent pyrophoric percentage : 98%min. Hope this answer helps！
Question:	range please - how far away can it be from the surface that you are measuring
Answer:	Hi dear, this fire starter kit product is designed from America, and it is manufactured in China. Hope this answer help you choose!

Product description

Technical Parameters:

Operating voltage: DC 2.7-12V

Static power consumption: <0.1mA

Delay time: 2 seconds

Block time: 2 seconds

Trigger mode: repeatable

Sensing range: ≤ 100 degrees cone angle, 3-5 meters; (according to the specific lens)

Working temperature: -20 - + 60 °

PCB Dimensions: 10mm * 8mm

Module lens: small lens

Package Contents:

6 x AM312 Human Sensor Module

1 x 10Pin Dupont Wire Female to Male 20cm

• AM312 human sensor module is a digital intelligent automatic control product based on passive human infrared technologyLow power consumption, small size, easy to install.
• Internal use of digital signal processing, pit interference strong.
• High sensitivity, reliability, and can be widely used in automatic sensing circuit.
• Repeatable trigger mode: that is, after the induction output is high, in the delay period, if the body in its induction range of activities, the output will remain high until the delay after the person to become Low level. (Ie, the sensing module automatically detects a delay period after each activity of the human body, and takes the last active time as the starting point for the delay time).
• Widely applications: Security Products, the human body sensors toys, the human body sensor lighting, industrial automation and control, etc.

Product description

Specification:

Working voltage: DC 2.7-12V;

Static power consumption: <0.1mA;

Delay time: 2 seconds;

The blocking time: 2 seconds;

Trigger: can be repeated;

Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens)

Working temperature: -20 to + 60 ℃

PCB szie: 10mm x 8mm

Total size: Approx. 12mm x 25 mm

Module Lens: Small lens



Package Include:

5 * PIR sensor module

• AM312 Human Sensing Module: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment.
• Low power consumption, small size, easy to install.
• Internal use of digital signal processing, pit interference strong.
• Repeatable trigger mode: that is, after the induction output is high, in the delay period, if the body in its induction range of activities, the output will remain high until the delay after the person to become Low level. (Ie, the sensing module automatically detects a delay period after each activity of the human body, and takes the last active time as the starting point for the delay time).
• Working voltage: DC 2.7-12V;Static power consumption: <0.1mA;Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens) Working temperature: -20 to + 60 ℃

User questions & answers

Question:	Is it possible to eliminate any delay, so the trigger is almost instantaneous
Answer:	When these sensors say "delay" it means how long the sensor stays in its "on" state after being triggered. So having a 2 second delay means that when motion is detected, the sensor immediately goes to its "on" state and stays "on" for 2 seconds after the motion is detected. There is do delay in detection.
Question:	How much output current will it handle
Answer:	It cannot directly drive very much. It would need to be boosted with some sort of driver, a transistor or something else that can handle more current. I doubt that the output can drive more than10ma. The output will be the same voltage that you supply the device with, but the amount of current it can handle is small.
Question:	Does anyone know the max out current? Thanks
Answer:	It does not exactly say, but the mention that is for "Internal use of digital signal processing" this implies that it supplies a voltage for a digital Input, but low current. Additional components such as Transistors or MOSFETs could be used to increase the current if you want to direct drive something.
Question:	Can i wire these in between 5v led strip lights and 5v usb output
Answer:	I assume you are wanting to use this to turn on and off your led lights. you can use it as a trigger to turn them on but it can not power them directly. You would need a relay or MOSFET that can take a control signal.

Product description

Technical parameters:

1. Working voltage: DC 2.7-12V; 

2. Static power consumption: <0.1mA; 

3. Delay time: 2 seconds; 

4. Blocking time: 2 seconds; 

5. Trigger mode: repeatable; 

6. Sensing range: ≤100 degree cone angle, 3-5 meters; (depending on the specific lens) 

7. Working temperature: -20 - +60 °C; 

8.PCB dimensions: 10mm*8mm; 

9. Module lens: small lens; 



Package Includes:

3* AM312 Mini Pyroelectric PIR Human Sensor Module

• Working voltage: DC 2.7-12V.
• AM312 Human Sensing Module: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment.
• Low power consumption and small size for easy embedded installation.
• Sensing range: ≤100 degree cone angle, 3-5 meters; (depending on the specific lens) 

User questions & answers

Question:	What do these sensors do? What do they react to
Answer:	I have 4 of the blue chairs, the color is not teal or navy. The photo is almost exactly how it looks in person.
Question:	Can the sensor range be adjusted
Answer:	I wouldn’t say they would be too small, and they are comfortable enough to sit and talk. This is definitely not a lounging chair, or binge tv chair. We have four of them in our office, for customers, so they do not get a lot of continuous use like that. They are great looking and get a lot of compliments.
Question:	How can you tell which prong is ground, neutral or hot
Answer:	They are definitely more for looks. Comfy isn’t a word I would use to describe them. I’m 5’8”. It is definitely a nice chair though.
Question:	How long do these supply power after triggering
Answer:	It's faux velvet. The chair pad has a zipped cover that can be removed.

Product description

IS335 WIRED PIR Motion Detector, 40' x 56' by Honeywell

• IS335 WIRED PIR Motion Detector, 40' x 56' by Honeywell

User questions & answers

Question:	is it suitable with all kinds of wired systems
Answer:	Great question! The “lip” as it is called in the industry, allows for the chair mat to extend under the desk to protect the floor under the desk from a persons feet and also prevent Desk Chair wheels from rolling off the front end of the Chair Mat. The “lip” is NOT a beveled or tapered edge (industry terms) around the mat’s circumference. Many buyers get the lip confused with what is called a “beveled” or “tapered” edge. We do not make a chair mat with that feature.
Question:	Is there an app for this
Answer:	Thank you for the question! As long as it is being used with a common residential oxygen concentrator, this would be a good resting spot. We would warn that unrolling and flattening the mat will require some physical effort as the material is stiff being shipped rolled up. Also, the concentrator should be semi-fixed to the area of the desk chair mat as it may not slide off and back onto the mat easily. We have no experience or testing in trying to move a similar machine off and back onto the mat, but in theory, it should work. Please let us know if you have any other questions!
Question:	So Is it wired 2 wires for Power input and 2 wires forsensor output? Thanks
Answer:	Great question! The “lip” as it is called in the industry, allows for the chair mat to extend under the desk to protect the floor under the desk from a persons feet and also prevent Desk Chair wheels from rolling off the front end of the Chair Mat. The “lip” is NOT a beveled or tapered edge (industry terms) around the mat’s circumference. Many buyers get the lip confused with what is called a “beveled” or “tapered” edge. We do not make a chair mat with that feature.
Question:	When set at it's highest sensitivity, will it detect small rodents like rats or squirrels
Answer:	The mat is to thin, it leaves wheel dents and is difficult to manage on carpet. It might be OK on a hard surface.

• 【Motion Activated】 : Sensor function triggered by motion, you can use this small motion sensor switch to control lighting like Led strip lighting.
• 【Light Sensor Adjustable】: This function allows you to use the motion sensor in different ambient condition, for example, you set the light sensor value to 20 lux, when the room ambient light value is above 20 lux, the light won’t turn on, but when room ambient light value is less than 20 lux, the sensor can turn light on when motion detected within sensing range.
• 【Delay Time Adjustable- Please set this to its minimum value first then try to figure out your values for the Sensitivity and Light Sensor- this will save your time】: The delay time controls how long the light stays on once it gets triggered, during the delay time if motion detected, the delay time will reset and start a new delay time.
• 【Sensitivity Adjustable】: The sensitivity controls how close you need to be to the sensor in order to activate it.
• 【Wide Application】: You can use this sensor in different occasions like entryway lighting, cabinet lighting, gun safe lighting, pantry lighting, under the bed rails lighting.

User questions & answers

Question:	Will only humans presence activate this? Or can u set it up for lets say if a ball rolls passed it, it will trigger
Answer:	These are "passive infra-red". I'm pretty certain that whatever moves in front of it has to have a heat signature in order to trigger the switch. Our cats set it off, which is why I purchased these. However, there is a calendar on the wall right next to it and it does not trigger when the wind blows the calendar all over the place.
Question:	Bought this sensor for gun safe setup but it doesn't seem to turn off at all. Made adjustments as suggested. Any ideas
Answer:	Turn the delay time all the way down. Maybe slightly turned the opposite direction (from the no delay position). If you've got a light that turns on (assuming you do) that helps with calibration (so you have something to look at and see if it's working or not). Look at the manual, pop it open and there are three potentiometers one of them is the duration that it stays on.
Question:	Would this be a sensor I would be able to wire into a small ring box to turn on a light when the box is opened
Answer:	You said the ring box was small, You would be better off just using a micro switch and do the same thing
Question:	How many amps is this rated for
Answer:

Product description

Specification:

Working voltage: DC 2.7-12V;

Static power consumption: <0.1mA;

Delay time: 2 seconds;

The blocking time: 2 seconds;

Trigger: can be repeated;

Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens)

Working temperature: -20 to + 60 ℃

PCB szie: 10mm x 8mm

Total size: Approx. 12mm x 25 mm

Module Lens: Small lens



Package Include:

2 * PIR sensor module

• AM312 Human Sensing Module: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment.
• Low power consumption, small size, easy to install.(5 PACK can search ASIN B07NPKMH58)
• Internal use of digital signal processing, pit interference strong.
• Repeatable trigger mode: that is, after the induction output is high, in the delay period, if the body in its induction range of activities, the output will remain high until the delay after the person to become Low level. (Ie, the sensing module automatically detects a delay period after each activity of the human body, and takes the last active time as the starting point for the delay time).
• Working voltage: DC 2.7-12V;Static power consumption: <0.1mA;Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens) Working temperature: -20 to + 60 ℃

User questions & answers

Question:	Do i have to add arduino or will it turn light on/off by itself? How long will light stay on
Answer:	Yes, you can, but you need correct cable , female dupont cable with Alligator Clip Test Lead
Question:	Does this product have an actual spec sheet with clear dimension
Answer:	WRCoyle is pretty much wrong on their answer. I'm assuming you want to turn electricity on to another device with this? The answer to that is no. This provides a logic output that is high when it is triggered and low when on standby. The BISS0001 chip on this has the output pin rated for 10mA and it goes straight to the out pin on the board, no transistor used to handle more power. It can run a regular LED using a resistor to limit the LED to 10mA or less. Beyond that, you will need a transistor or solid state relay or some other setup to handle any amount of current.
Question:	how do you wire this thing
Answer:	It will sense any movement (heating moving paper) in a room of that size
Question:	Any way to change the delay time
Answer:	Yes there are two pots on the board you can use to adjust. Check the web for how to do it.

Product description

PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensitivity and we include a 1 foot (30 cm) cable with a socket so you can easily reposition the sensor or mount it using the two drills on either side Runs on 5V-16V power (if you need to run it off of 3V you can do that by bypassing the regulator, but that means doing a bit of soldering). Digital signal output is 3.3V high/low. Sensing range is about 7 meters (120 degree cone) There are many tutorial available on Adafruit's website for these sensors!

• Detect motion up to 7 meters away
• Perfect for Raspberry Pi or Arduino Projects
• Easy to use
• Requires soldering of header pins

User questions & answers

Question:	Where is the sensor on this board and how big is it
Answer:	Can be used independently
Question:	Can I use two of these sensors to determine distance between them
Answer:	No
Question:	Does it come with the wire it shows in the picture? Some reviews make it seem like it may not
Answer:	I should think so. You just need a way of reading the values coming from the sensor to detect motion.
Question:	I am trying to get these to drive the coil on these relays, but its not a strong enough signal to trip them. What am I doing wrong
Answer:	Depends on the sensitivity setting. I have had no problems in the 2 to 3 meter range which is perfect for my uses. Also, this is an infrared sensor that senses motion, so if your surface is stationery, you might consider an ultrasonic sensor instead.

User questions & answers

Question:	Installing 2 led strips along the 32' path (outdoors). Need switches on both ends of the path. Will these switches do the job if install parallel
Answer:	Vladislav, I believe that you are correct. If in parallel, either sensor should turn on the lights.
Question:	i have power adapter ac 100-240v 50/60hz output 24v dc 2000ma with sensky bs010 12v 24v pir with apentek led lights, it isnt working. please help
Answer:	Daniel,The PIR is not very responsive, so you may need to adjust the sensitivity. In fact this sensor detects motion via Infrared. So if you have it in a warm location, it is pretty much "blind".The data sheet includes shows how to adjust sensitivity. You will need to remove the cover however.I hope I have helped in some way.
Question:	How much current it takes to operate this sensor? The idle power consumption when not operating the load. And, does it use more than the load when on
Answer:	Roy Man, I do not have the specifics, but I would figure the idle current to be in the micro amps and when on, it is still in the micro amp range.Having said that, I have been very disappointed in the operation of my switches. Outdoors, the range is only a few feet. Indoors, I have to actually touch it and hold it to turn the circuit on.I hope this helps.
Question:	will this detect vibration? or can do you guys produce one that works off vibration/moment
Answer:	Dear Diane, Thank you for your questions. this switch can detect human(or heat resource) movement, but this switch can't detect the slight vibration of the object, this is an infrared motion sensor switch, that is to say, this switch is only work when it detected the movement of heat resource or the human body. So if this is an object which without any heat, it will not active this switch even if there is a vibration. However, we have a microwave motion sensor switch, which can detect the vibration or movement of the object. Here is the link for your reference: http://www.amazon.com/Sensky-Microwave-sensitivity-distance-detector/dp/B00MHLK2YY/ref=sr_1_1?ie=UTF8&qid=1452745765&sr=8-1&keywords=BS029AIf you need any further help, please feel free to contact me anytime. Have a nice day~YoursMakayla

Product description

Sensky BS009 12V 24V PIR Sensor LED motion sensor Switch Motion Timer Function Sign Control PIR Controller LED Strips Lighting



Great for small 12 volt DC solar panel LED Lighting systems to conserve battery power; also well suited for occupancy LED lighting control and security LED Lighting systems. See the additional information and specification sheet in our listing pictures for more details.



Specifications:

Power supply voltage: 12-24V

Output voltage: 12-24V

Max load current: 6A

Induction range: 8m

Delay time: 1-10min (adjustable)

Working temperature: -20-60 degrees Celsius



Direction for use:

The human body induction switch is a kind of infrared detection controller, adopt infrared detection way to control load switch.

Users can according to actual needs, installed the human body sensors in the appropriate environment.

Connect the load wire at first, following by the power wire; Please ensure short circuit cannot occur between connecting wire before you turn on the power;

When detected somebody, the load light will bright, when people leave time up to the setting of the delay time, the load lights will automatically turn off.

Controller signal output line and input line should be connected correctly.



Package including:

1 x PIR Switch

1 x Manual sheet

• Power Supply Voltage: DC12-24V
• Delay Time: 1-10 min(adjustable). Induction distance: 8m
• Infrared detection controller, adopt infrared detection way to control load switch
• The sensor switch activates On when a body in motion enters the field of view with an On time hold that is adjustable from 1 to 10 minutes after motion has ceased
• PIR (Passive Infrared) sensor has an effective range of 16 feet and diminished sensing of a moving human body to 26 feet. The field of view of the PIR Dome Lens is 60 degrees nominal.

User questions & answers

Question:	will 26v AC power this, I want to connect to my spinkler valve for keeping cats off lawn
Answer:	I power this device with a 12vdc power supply. The specs say 12-24v DC. I doubt it will work with 26v AC. However, a simple bridge rectifier would probably work for you.
Question:	Does this require a minimum load? I installed it in a kitchen appliance garage to control 3 watts of 12v l.e.d. ribbon and it doesn't like to turn off
Answer:	There is no minimum load mentioned in the spec sheet that came with it. I think it just has a small relay that is either open or closed.
Question:	I have 3 and they all stays on until I unplug it
Answer:	Double check your polarity on your wiring.
Question:	Did anyone else have issues getting the timer to work? Mine is staying on and not shutting off. I bought the two pack and the other one is working
Answer:	The first one I bought did the same thing after a couple of weeks. The new one I bought has been working fine for several months