12 best h h light meters
H&H Light Meters are devices used for measuring various aspects of light in different settings, particularly in industries and scientific fields where accurate light measurement is essential. These meters are valuable tools for professionals working in photography, cinematography, environmental monitoring, and industrial quality control. Here is some information about H&H Light Meters:
Light Measurement: H&H Light Meters are designed to measure different parameters of light, including:
Illuminance: This measures the amount of light falling on a surface and is typically expressed in lux or foot-candles. Illuminance meters are used to assess the brightness of lighting in indoor and outdoor environments.
Luminance: Luminance meters measure the brightness of a light source or the surface it illuminates. It is usually expressed in candelas per square meter (cd/m²) or foot-lamberts.
Spectral Analysis: Some H&H Light Meters can also perform spectral analysis, which involves measuring light intensity across different wavelengths of the electromagnetic spectrum. This is useful for applications such as assessing the color quality of lighting.
Applications: H&H Light Meters find applications in various industries and scientific fields, including photography, cinematography, architecture, environmental science, agriculture, and manufacturing. They are used to ensure proper lighting conditions, monitor light pollution, and maintain quality control in production processes.
Design and Features: These meters typically come in handheld, portable designs that are easy to carry and use in various environments. They may feature an integrated display for real-time readings and data storage capabilities for recording measurements.Some models may also have built-in data logging or connectivity options for data transfer and analysis.
Calibration: To ensure accurate measurements, H&H Light Meters may require periodic calibration. Calibration involves adjusting the meter to match a known standard of light intensity. Calibration certificates may be provided by the manufacturer or a calibration laboratory.
Usage Guidelines: Users of H&H Light Meters should follow proper usage guidelines to obtain accurate measurements. This includes positioning the meter at the correct distance and angle from the light source or the surface being measured.
Light Sources: These meters can be used to measure various types of light sources, including natural sunlight, fluorescent lighting, LED lighting, and incandescent lighting. Different light sources have unique characteristics that affect the measurements.
Units of Measurement: H&H Light Meters provide readings in units appropriate to the type of measurement being performed, such as lux, foot-candles, or candelas per square meter.
In summary, H&H Light Meters are important tools for professionals and researchers who require accurate measurements of light intensity, illuminance, and luminance in a wide range of applications. They help ensure proper lighting conditions, quality control, and environmental monitoring across various industries and scientific disciplines.
Below you can find our editor's choice of the best h h light meters on the marketProduct description
Light Meter, HOLDPEAK 881D Digital Illuminance/Light Meter with 0-300,000Lux Measuring Ranges and 270 Degree Rotatable Detector for LED Lights and Plants lux Meter.
⚡Accurate Measurement & Fast Response:
The light meter covers a measuring range up to 300,000 Lux with highly accurate results. At twice per second frequency, it has a high response rate so you can be rest assured to get both fast and quality readings.
⚡Versatile Applications:
Lightweight and ultra compact, you can take it anywhere you need. It has a wide range of applications including but not limited to use in school, factories, warehouses, office or home for set and scenic design, plant growing to ensure proper light levels,and more.
⚡Specifications:
- Display: 3999
- Power: 2* 1.5V battery
- Ranges: 0.1-300,000 Lux; 1-40,000FC
- Accuracy: ±4%rdg ±0.5%f.s (less 10,000 Lux;1,000 FC) / ±5%rdg ±10dgt (over 10,000 Lux;1,000FC)
- Repeatability: ±2%
- Temperature Characteristic: ±1%C
- Photo detector type: Silicon Photo Diode with Filter
- Operating temperature: 32-104 degrees F (0-40 degrees C)
- Sampling rate: 2-3 times per second
- Battery life: 200 hours (estimate)
- Weight: Approx. 188 g (including battery)
- Dimensions: 174 x 51 x 32 mm
⚡Package Content:
1 x HOLDPEAK HP-881E Light Meter
1 x Carrying case
2 x 1.5V battery
1 x User manual
1 x Screwdriver
NOTE:
HOLDPEAK provide 1 year warranty and lifetime technical support.If there is any product questions, please feel free to contact us!
Email: [email protected]
- ✅【Professional LED Light Meter】HP-881D come with wide measure range 0.1 - 400,000Lux/1 - 40,000FC,So whether you're a photographer, a designer, or a plant lovers,this light meter will meet all your needs.
- ✅【270 Degree Rotatable Detector】Keep an eye on the light level anywhere in the room;The light meter sensor can rotate 270 degrees, So you don't need to move the light meter,just need to rotate the degrees to measure the lights that you need.
- ✅【High Accuracy】±4%rdg ±0.5%f.s (less 10,000 Lux;1,000 FC) / ±5%rdg ±10dgt (over 10,000 Lux;1,000FC) ;Resolution:0.1Lux / 0.01Fc ; 0.1 - 400,000Lux/1 - 40,000FC;Measurement speed: 2 times / second.
- ✅【Multifunction And Easy To Use】Rapid response, Auto Zeroing, Data HoldPeak-Data hold switches, Low power consumption, MAX/MIN Hold,Relative Value,℃/℉ Switch,with LCD backlit
- ✅【After-Sales Guarantee】HOLDPEAK come with 1 year warranty and lifetime technical support.If there is any product issues, please feel free to contact us!
User questions & answers
Question: | Can you check par readings with this |
Answer: | Par is the dia. of a lamp in 1/8" s of an inch. Par38 = 4 3/4". |
Question: | is there a way to convert Lux readings to photographic EV values |
Answer: | I'm throwing in this answer because I wasn't satisfied with the answer holdpeak gave. I interpreted the intent differently so I'll answer according to my interpretation. First, No this device does not have the capability of outputting an EV value based on it's light measurements or directly doing a conversion from LUX to EV. It is NOT for photographic use. Second,It is an industrial incident meter for measuring light reaching surfaces only and would be used to comply with OSHA standards for minimum required work space illumination levels as an example. Because photographic work requires knowing how much light is reaching the film this and similar meters will not give useable readings. An example would be a mirror and a piece of black velvet on a table lit by the same light source at 500 LUX. The mirror reflects nearly 100% of the light while the velvet only reflects 2%. The meter will not show the difference in reflected light levels! Third, There is No formula for the direct conversion of LUX to Photographic EVs. EV scales are relative to film speeds more than LUX levels so calculations become multi-step processes to go from LUX to EVs. However you can find a standard EV scale and a generic chart showing approximated LUX levels for various light sources on Wikipedia. Be aware that the standard EV scale is based on a film speed of ISO100. Any change in film speed requires a shift in EVs for any given LUX level. Comparing the charts and adjusting for film speeds can help you create your own EV scale based on relative LUX levels which does not change the requirement to measure light reaching the lens not just falling on a surface. Last, this meter can be used for balancing the illumination from multiple light sources on a stage set or display to be photographed but would still need a photo exposure meter to set the camera for the shoot after doing so. |
Question: | Would you consider this an incident meter or does measure more reflective light |
Answer: | This product is used to measure incident light. |
Question: | Does it work for Photography? Does it tell me the right aperture in F and shuttle speed |
Answer: | No, while it measures light levels, it doesn’t convert them for photo, cine, or video use. I use them to balance light on video shoots, but not determine settings. |
Product features
Large Screen & Analog Display
The thermometer built into the illuminometer can automatically measure the ambient temperature. Temperature conversion between Celsius and Fahrenheit. If you need to measure and convert in temperature units, press the ° C / ° F button to convert.
The large LED display can display the amount of light, magnetic flux level, and temperature at the same time. Data can be obtained clearly.
Data Memory & Backlight
(Recording and querying data) In photometer measurement mode, press REC briefly to record data and once to record data. Press and hold to read the data (MEM) status and record a total of 33 sets of data. Records can be recycled.
The photometer is also equipped with a backlight function, making it easy to use even in dim environments.
Sensor Protection and Rotation
The light meter sensor has a protective cover to protect the sensor when not in use, so that the measured value can be accurate.
And the sensor can be rotated 270 ° clockwise and 90 ° counterclockwise. This design allows the user to measure in the optimal position.
Product description
Description:
VU Meter:
Material: plastic,Metal,electronic compnent
Color: as picture show
Size: approx. 35 * 35 * 37mm/1.38*1.38*1.46inch
Measuring range: 0-500UA ± 10%
Resistance: 650Ω ± 10%
Accuracy: ± 5%
Approved location: full-scale 500UA
Backlight voltage: AC/DC 6-12V
Driver Board:
The fourth-generation driver board, further refine the board's size.
The fourth-generation driver board instead of Toshiba 7318IC perfect drive plate, drive improved( disadvantages of 7318:1 small plate pointer swing, 2. regulate small sensitivity.)
Package Content:
2 x VU Panel Meter
1 x Driver Module
1 x Cable
- L/GND/R: This driver board with low level signal input terminals for connections are CD players, computer sound cards, the first stage, and other audio signal source device, wiring L, GND, RW respectively: Left, the right channel
- Power Consumption:Input AC / DC 12V-15V power supply for the drive plate. (Recommended independent power transformer, or a separate power supply for the winding. the backlight current is 45 mA when drive plate off work
- 2 Resistor:R1 and R2 are two adjustable resistors of driver board,which can control the size of the hands swing.
- Rectifier RegulatorThe backlight DC12V power meter is used for rectifier regulator of the backlight driver board Please notice that the positive and negative head interface.
- Package Content:2 x VU Panel Meter+1 x Driver Module+1 x Cable
User questions & answers
Question: | It seems the ic in the board could be an opamp; does the board use a buffer to avoid issues with balanced signals |
Answer: | The trucks are cast aluminum |
Question: | Can I use my own vu meters with this |
Answer: | Like a spring board. I can almost make the middle of the board touch the ground when jumping on it, if that puts it into perspective. |
Question: | Can you run (or has anyone tried) putting a POT on the lighting circuit to control the brightness |
Answer: | This board is human powered..... it goes as fast as you can.... Mine is really fast.... especially downhill.... |
Question: | What is the power consumption in mA hours? Is it minimal |
Answer: | Hey! No not at all it comes gripped with a sandblast clear style grip. |
- ☀【Larger Measurning Range】Measure Range: 0.1Lux~200,000Lux, 0.01FC~20,000FC.
- ☀【Safer & Higher Accuracy】More convenient functions with 2.0 times/s Rapid Response, Auto Zeroing. Accuracy (±4% readings ±0.5% F.S) for ≦20K Lux/2K FC; ( +/- 5% of readings ±10dgt ) for >20K Lux/2K FC.
- ☀【Data Hold Supported】Supporting Data Hold & Peak-Data hold switches, Lux/FC switchable, Low power consumption, Short rise and Fall time.
- ☀【More Functions You May Need】Higher functions includes Over-range indication, Large LCD display with Back Light,MAX Hold,1*screwdriver and 1*9V Battery are Included.
- ☀【Wide Range of Application】It can be used for plants,office,home,factory,square,stadium,waiting room,photography,scenic,design and so on.
User questions & answers
Question: | Is it cosine corrected |
Answer: | Yes, that is what I used mine for on a few refits and also on a new project |
Question: | Would this be suitable for measuring Lumens on a projector? It doesn't have to be really accurate, lust close. I mostly just want to compare bulbs |
Answer: | It read all spectrums of burple along with yellples |
Question: | Can this be used for aquariums |
Answer: | Yes |
Question: | Can this be used for photography |
Answer: | It’s not calibrated for blue-rich spectral power, so it might “under-value” an environment lighted with 5K sources. (Humans may feel the environment is “brighter” than what the meter tells you) |
Product features
HOLDPEAK 881C Digital LUX Meter, Measure Range 0.1-200,000 Lux, 0.01-20,000 FC Light Meter for Plants and LED Lights
Display: 1999
Power: 9V (6F22) battery
Ranges: 0.1-200,000 Lux; 0.01-20,000 FC
Accuracy: ±4%rdg ±0.5%f.s
(less 20,000 lux/2,000FC) / ±5%rdg ±10dgt (over 20,000 Lux/2,000FC)
Repeatability: ±2%
Photo detector type: Silicon Photo Diode with Filter
Adjustable Photo Detector
No need to move around, the adjustable sensor provides easy, muti-directional measurement from anywhere in the room.
Multifunction Light Meter
LCD Display,Data Hold
Over-range indication
High speed responsive
Auto Zeroing
Low battery prompt
Package Content
1 x HOLDPEAK HP-881C Lux Light Meter
1 x Carrying case
1 x 9V (6F22) battery
1 x User manual
Wide Application
Proper lighting is important for photography and plants,It's quick,accurate,when you're setting up your camera for the perfect shot.It also help providing proper lighting for plants growing.
The Lux Light Meter are used in the general field of lighting, where they can help to reduce the amount of waste light used in the home, light pollution outdoors.
This digital light meter uses advanced detection technology,it’s great for plants,office,home,warehouse,square,stadium,waiting room,photography,scenic,design and much more.
Product description
This HOLDPEAK 856A Digital Anemometer is ideal for outdoor activities such as Windsurfing; Flying Kite, Aeromodelling and UAV, Sailing, Surfing, Fishing, Hiking, Shooting, Walking etc.
* DATA HOLD SUPPORT - Auto power off and date hold function, the data won't be lost.
* HIGH SENSITIVE & ACCURATE MEASURING - Provides fast measurement for analysis of critical environment conditions.
* THREE FUNCTIONS - Wind Speed, temperature and wind flow in one LCD display. Measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph.
* Through the built-in temperature regulator to adjust ℃/℉ temperature. Record and recall max / min /Average / Current function. Low battery indication.
Features & Specifications:
Wind Speed Range: 0.3-45m/s
Accuracy of Wind Speed: 0.1dgts
Resolution: 0.01m/s
Back Light YES
Wind Flow Range: 0~999900m3/min
Low Battery Indication YES
Manual/Auto Power Off YES
Wind Speed Unit Selection: m/s, km/h, ft/min, knots, mph
MAX/MIN/Average/Current YES
℃/℉YES
USB Port YES
Battery Type: 1* 9V 6F22 Battery(INCLUDED)
Package Included:
1 * HOLDPEAK 856A Digital Anemometer
1 * 9V 6F22 Battery
1 * Protective Case
1 * User Manual
- ❤【USB Connect to PC】USB data cable included,You can stored and analyze data by connecting to the PC via USB.Measures Air Velocity, Air Flow,and Temperature- Temperature Range: 32℉~113℉
- ❤【Multifunction Pro Anemometer】 Fcnctions with Wind speed,Temperature,Wind flow,Data Hold,Data record:600 Groups,℃/℉ Selection,Measure wind speed in 5 units:m/s, km/h, ft/min, knots, mph.
- ❤【Flow Area Setting】 You can press the ''AREA" key,then press the numbers keys to enter a new duct area,such as the number 1 or 2,and then press the "ENTER" key to confirm,You can also press the "UNIT'' key to choose CFM or CMM.
- ❤【Wind Flow Range】 CFM: 0~999900 ft3/min & CMM: 0~999900m3/min;Wind Flow Calculate Formula: Flow =velocity *(Free Area); NOTE:Without enter the duct area will lead to failing in taking measurement of the wind flow. If wind flow is larger than 9999, the LCD screen will show x10 or x100, and the measured value is also x10 or x100.
- ❤【Saving Your Battery】 Auto Power Off,with Back Light function,you can get the value clearly at night,Low battery indicator,Adjustable Auto Power OFF time to save your battery(1*9V(6F22) Battery Included).
User questions & answers
Question: | Does this measure cfm? would this be a good tool for hvac |
Answer: | Yes to CFM is part of the features: Temperature Units: -DegreeC/-DegreeF - Battery: 9V(6F22) Battery- Air Flow Units: CMM (Cubic Meters/Min), CFM (Cubic-Feet/Min) For HVAC if you are checking register outputs, this is great. If your trying too measure the main output duct off the system, it only measures any portion of the air stream you place it over. Since air moves at different sppeds inside a shape, it is not an accurate way to measure a large duct (note air does not move uniformly in corners as it does in a round duct. |
Question: | What's the difference between the $31 basic and the $49 usb upgrade...seems like both units have a usb input for the anemometer sensor. confusing |
Answer: | I'm not sure why they're using a USB connector for the sensor; I'm not even sure the sensor is sending real USB signals or if they're using that style of connector because it's cheap and convenient for the number of wires they needed to connect to. The optional USB feature on the other hand, that's an actual USB port that allows you to dump collected data to a computer. |
Question: | Is the wand waterproof? I would like to use it to measure water flow in a small stream |
Answer: | Dear friend, Thank you for choosing HOLDPEAK! I don't recommend that you use it to measure water flow. First of all, it may lead to short circuit of the instrument, and secondly, the result of measurement will be very erroneous. I hope this can help you. Best regards, Yours sincerely Livyen HOLDPEAK |
Question: | My Pyle instrument reads negative flow as a positive value. Not good for my application. Does this do the same |
Answer: | Dear Ed,Hello.I am Cindy from Holdpeak sales support.Our 846A anemometer wind flow measuring range is 0~999900m3/min.I hope my answer will be helpful! |
Product features
This HOLDPEAK 856A Digital Anemometer is ideal for outdoor activities such as Flying Kite, Aeromodelling, UAV, Sailing, Fishing, Hiking, Shooting, etc
* DATA HOLD SUPPORT - Auto power off and date hold function, the data won't be lost. * HIGH SENSITIVE & ACCURATE MEASURING - Provides fast measurement for analysis of critical environment conditions. * THREE FUNCTIONS - Wind Speed, temperature and wind flow in one LCD display. Measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph. * Through the built-in temperature regulator to adjust ℃/℉ temperature. Record and recall max / min /Average / Current function. Low battery indication.
Features & Specifications:
Wind Speed Range: 0.3-45m/s
Accuracy of Wind Speed: 0.1dgts
Resolution: 0.01m/s
Wind Flow Range: 0~999900m3/min
Product description
This 4-in-1 detector is definitely the right choice to protect you and your family's health and property.
Our multi-gas detector used advanced integrated circuit technology, embedded microcomputer control, high quality imported gas sensor, excellent sensitivity and excellent repeatability
The detector is widely used in petroleum, chemical, environmental protection, metallurgy, refining, gas, biochemical medicine, agriculture, fire protection, archeology, etc. It is necessary to safely monitor toxic and harmful, anti-explosion industries and places. Can effectively predict the alarm of dangerous gas concentration, ensure the safety of the workers is not threatened, and the production equipment is not damaged.
Product Parameters:
Comes Factory Calibrated
Display Error: ≤ ± 5% FS
Response Time: <30s
Working Environment: -20 ° C ~ 50 ° C, <95% RH (no dew)
Power Source: DC3.7V Li-on battery, 1800mAh
Protection level: Ip65
Gas Sensor Life: 2 years
Protection Grade: IP65
Weight: 230g (with battery)
Dimensions: 140mm × 73mm × 32mm (L × W × H)
Weight: 215g
Charging time: 4h-6h Standby time, Continuous use for more than 10 hours at full charge
Indication mode: LCD display real-time data and system status, lighting, vibration and live voice recording (Chinese and English) tips
Applicable Occasions and Crowds:
Robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment
Packing list:
1 * Detector
1 * User manual
1 * USB cable
1 * plug
- 100% KEEP YOU SAFE – HZXVOGEN gas detector comes FACTORY CALIBRATED. It has super high sensitivity, excellent repeatability, accurate measurement, and quicker response time(<30S). With these features, HZXVOGEN gas detector can provide enhanced protection to you. This gas detector can be work continually over 10 hours, so that it can keep you safe the entire time in your working place, such as in confined space
- SUPER EASY TO USE, THREE ALARM METHONDS - HZXVOGEN gas detector is READY TO USE. If you want to use it to detect gases, what you only need to do is turning on it, it will start to work once you turning on it. This portable voice type four-in-one gas detector has adjustable audio, visual, and vibration alarms alert when preset levels are reached. It can accurately measure the gas concentration with easy-to-read number shown on the display
- EASY CARRYING AROUND & WIDE APPLICATION – HZXVOGEN gas detector came with a super nice padded case. It has compact size and unique clip design which make it be convenient for user to carry around. This gas detector can be widely used in home, petroleum, metallurgy, agriculture, chemical industry, refining, fire prevention, effectively predicting, etc. as to ensure the safety of you. With this detector your family, friends or workmates are assured safety, if living or working in a polluted area
- HIGH QUALITY, LOWER ERROR - HZXVOGEN gas detector is made of high strength ABS and Anti-slip grip rubber. Waterproof, dust-proof and explosion-proof, Detection error better than ≤±5% F.S. and response time: T<30s. It has Zero and span calibration options. Its high density big digital LCD screen can display real time gas concentration value. Battery included -- 4.2V rechargeable lithium battery powered and included in the package, long capacity 1800mAh battery for long continuous working time
- 100% SATISFIED WARRANTY - If you have any issues or are not satisfied with our multi gas detector, please contact with us by email, we will give you well-done solution, REFUND or REPLACE a new one within 90 DAYS. Our 24 hours on-line customer services can help to answer any question about this gas detector in any time
Product features
The detector is widely used in metallurgy, refining, gas, biochemical medicine, archeology, etc.
This detector is necessary to safely monitor toxic and harmful, anti-explosion industries and places. The detector can effectively predict the alarm of dangerous gas concentration, ensure the safety of the workers is not threatened, and the production equipment is not damaged.
The detector is widely used in petroleum, chemical, etc.
Robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment.
The detector is widely used in agriculture, fire protection, environmental protection, home use, etc.
Enjoy your healthy life!
Product Parameters
- Comes Factory Calibrated
- Display Error: ≤ ± 5% FS
- Response Time: <30s
- Working Environment: -20 ° C ~ 50 ° C, <95% RH (no dew)
- Power Source: DC3.7V Li-on battery, 1800mAh
- Protection level: Ip65
- Gas Sensor Life: 2 years
- Protection Grade: IP65
- Weight: 230g (with battery)
- Dimensions: 140mm × 73mm × 32mm (L × W × H)
- Weight: 215g
- Charging time: 4h-6h Standby time, Continuous use for more than 10 hours at full charge
- Indication mode: LCD display real-time data and system status, lighting, vibration and live voice recording (Chinese and English) tips
Product description
This HOLDPEAK 856A Digital Anemometer is ideal for outdoor activities such as Windsurfing; Flying Kite, Aeromodelling and UAV, Sailing, Surfing, Fishing, Hiking, Shooting, Walking etc.
* DATA HOLD SUPPORT - Auto power off and date hold function, the data won't be lost.
* HIGH SENSITIVE & ACCURATE MEASURING - Provides fast measurement for analysis of critical environment conditions.
* THREE FUNCTIONS - Wind Speed, temperature and wind flow in one LCD display. Measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph.
* Through the built-in temperature regulator to adjust ℃/℉ temperature. Record and recall max / min /Average / Current function. Low battery indication.
Features & Specifications:
Wind Speed Range: 0.3-45m/s
Accuracy of Wind Speed: 0.1dgts
Resolution: 0.01m/s
Back Light YES
Wind Flow Range: 0~999900m3/min
Low Battery Indication YES
Manual/Auto Power Off YES
Wind Speed Unit Selection: m/s, km/h, ft/min, knots, mph
MAX/MIN/Average/Current YES
℃/℉YES
USB Port YES
Battery Type: 1* 9V 6F22 Battery(INCLUDED)
Package Included:
1 * HOLDPEAK 856A Digital Anemometer
1 * 9V 6F22 Battery
1 * Protective Case
1 * User Manual
- ⚡【USB Connect to PC】USB data cable included,You can stored and analyze data by connecting to the PC via USB.Measures Air Velocity, Air Flow,and Temperature- Temperature Range: 32℉~113℉
- ⚡【Multifunction Pro Anemometer】 Fcnctions with Wind speed,Temperature,Wind flow,Data Hold,Data record:600 Groups,℃/℉ Selection,Measure wind speed in 5 units:m/s, km/h, ft/min, knots, mph.
- ⚡【Air Flow Area Setting】 You can press the ''AREA" key,then press the numbers keys to enter a new duct area,such as the number 1 or 2,and then press the "ENTER" key to confirm,You can also press the "UNIT'' key to choose CFM or CMM.
- ⚡【Wind Flow Range】 CFM: 0~999900 ft3/min & CMM: 0~999900m3/min;Wind Flow Calculate Formula: Flow =velocity *(Free Area); NOTE:Without enter the duct area will lead to failing in taking measurement of the wind flow. If wind flow is larger than 9999, the LCD screen will show x10 or x100, and the measured value is also x10 or x100.
- ⚡【Saving Your Battery】 Auto Power Off,with Back Light function,you can get the value clearly at night,Low battery indicator,Adjustable Auto Power OFF time to save your battery(1*9V(6F22) Battery Included).
User questions & answers
Question: | What are the differences between the hp-856a and the hp-846a |
Answer: | Our hp-856a can connect to PC with usb. |
Question: | Can you collect flow readings over a 24 hour period on vent pipe |
Answer: | Dear, HP-856A anemometer is okay to use computer software to record data over 24 hour period, but remember that the computer should not set system sleep. |
Question: | What is the smallest duct area the hp-856a can calculate for? i am looking to test cfm in high-flow ducts that are 4" in diameter |
Answer: | Hi, Zeno L, Thank you for your support. The the smallest duct area of HP-856A anemometer is the fan's area. It can test cfm in high-flow ducts that are 4" in diameter |
Question: | How far can you extend the fan |
Answer: | The fan rope can extend about 2m(about 78 inch) |
Product features
This HOLDPEAK 856A Digital Anemometer is ideal for outdoor activities such as Flying Kite, Aeromodelling, UAV, Sailing, Fishing, Hiking, Shooting, etc
* DATA HOLD SUPPORT - Auto power off and date hold function, the data won't be lost. * HIGH SENSITIVE & ACCURATE MEASURING - Provides fast measurement for analysis of critical environment conditions. * THREE FUNCTIONS - Wind Speed, temperature and wind flow in one LCD display. Measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph. * Through the built-in temperature regulator to adjust ℃/℉ temperature. Record and recall max / min /Average / Current function. Low battery indication.
Features & Specifications:
Wind Speed Range: 0.3-45m/s
Accuracy of Wind Speed: 0.1dgts
Resolution: 0.01m/s
Wind Flow Range: 0~999900m3/min
Product description
Certification: CE
Color temperature (K): RGB LED lamp strip
Waterproof: no
Top: SMD
Model: WS2812B WS2812 LED Light Bar
Occasion: living room
LED quantity / m: 30LEDS / M, 60LEDS / M
Power consumption (W / M): 8.64W / m
Power: DC
Average life (hours): 50000
Power generation: switch
Voltage: 5V
PCB Color: White
Color: full color RGB, dream color change
LED light source: SMD 5050 RGB
IP level: IP20 does not waterproof
With dimensions: 5000 x 10X 1MM
Including: 1 * Lights 2812 IP20
- Certification: CCC Dream Colorful RGB as a TV background, make your eyes more relaxed and feel more comfortable.Provide different fixed colors and RGB (133 changing modes)
- The WS2812B IC flaps can be addressed separately.Colorful, cool animation.
- Just plug and play, you can use on any device with 5V 1A output USB port, such as a desktop computer, laptop, car charger, mobile power.It can be used to make LED screens, LED walls, advertising boards.Widely used in hotel, KTV, bar, outdoor advertising sign, polarized lighting, TV background light, wedding banquet decoration, etc.
- Low power, super bright but low temperature running all light spreads very smooth, very uniform, and the life is more than 50,000 hours.
- If you have any questions, please send us an email, we care about our distinguished customers and will reply within 24 hours.
Product description
Super bright 1M 600LED 120LEDS / M SMD 5630 5730 flexible LED lamp strip
Description:
Color: White (6000-7000K) / warm white (2800-3200K), cold white (8000-12000K)
Perspective: 120
Working voltage: 12VDC
LED Quantity: 120LEDS / M
Length: 5m
Super brightness: 30-35LM / LED
Work temperature: -20 to 50
Waterproof IP20
feature:
Low power, super bright but low temperature operation
All light is spread, completely smooth, very uniform
According to your requirements, each 3-leDS can cut without damage the remaining strips.
Adhesive self-adhesive back, safe, easy to use
LED type: high quality 5730 patch LED, high strength and reliability, long life> 50,000 hours
application:
Lightful home life, DIY homes, corridors, stairs, trails, windows,
Lightful life hotel decoration use, theater, club, shopping mall, holidays and performances
Building decoration lighting, arch, awning, bridge lighting, safety lighting and emergency,
Widely used in backlight illumination, used for sign letters, hidden lighting and advertising logo lighting
Suitable for airplane model decoration, contour lighting or border.
Package Included:
1 x LED Strip 5M
- Low power, super bright but low temperature operation
- All light is spread, completely smooth, very uniform
- According to your requirements, each 3-leDS can cut without damage the remaining strips.
- Adhesive self-adhesive back, safe, easy to use
- LED type: high quality 5730 patch LED, high strength and reliability, long life> 50,000 hours
Product description
Super bright 1M 600LED 120LEDS / M SMD 5630 5730 flexible LED lamp strip
Description:
Color: White (6000-7000K) / warm white (2800-3200K), cold white (8000-12000K) per meter of 24W.
Perspective: 120
Working voltage: 12VDC
LED Quantity: 120LEDS / M
Length: 5m
Super brightness: 30-35LM / LED
Work temperature: -20 to 50
Waterproof IP20
Good FPC
feature:
Low power, super bright but low temperature operation
All light is spread, completely smooth, very uniform
According to your requirements, each 3-leDS can cut without damage the remaining strips.
Adhesive self-adhesive back, safe, easy to use
LED type: high quality 5730 patch LED, high strength and reliability, long life> 50,000 hours
application:
Lightful home life, DIY homes, corridors, stairs, trails, windows,
Lightful life hotel decoration use, theater, club, shopping mall, holidays and performances
Building decoration lighting, arch, awning, bridge lighting, safety lighting and emergency,
Widely used in backlight illumination, used for sign letters, hidden lighting and advertising logo lighting
Suitable for airplane model decoration, contour lighting or border.
Package Included:
1 x LED Strip 5M
- Low power, super bright but low temperature operation
- All light is spread, completely smooth, very uniform
- According to your requirements, each 3-leDS can cut without damage the remaining strips.
- Adhesive self-adhesive back, safe, easy to use
- LED type: high quality 5730 patch LED, high strength and reliability, long life> 50,000 hours
Product description
1. Superb right 5050 SMD LED, high strength and reliability.
2. The service life is up to 50,000 hours
3. Continuous length, 5 m packaging.
4. Flexible belt for bending and bending
5. Complete smooth and uniform light diffusion to solve uneven illumination problems
6. Super bright but running at low temperatures
7. Low power consumption
Product specifications:
1. Size: L500cm (5M) × W1cm × T0.35cm
2.Emit color: white / warm white / blue / green / red / RGB
3. Protection ratio: IP20 / IP65
4. Working voltage: 12V DC
5. Number of LEDs: 60leds / m, 5 meters / volume
6. Viewing angle: 120°~140°
7. Working temperature: -20 ° to 50 °
Color temperature: W arm white: 3000-3500K white: 5500-6000K cold white: 6500-7000K
application:
1. Architectural outline decoration, landscape lighting, entertainment theme,
2. Holiday light sculpture, decorative picture, activity sign, display, shop window
3. Storefronts, bars, nightclubs, streets, sidewalks, decks, parks, porches, stairs, railings, ceilings or driveways.
note:
1. Welding in electronic products is very normal without any quality problems.
LED strips can be soldered to 5 meters long by pcs, if you mind, don't place an order.
2. We offer IP20 waterproof and IP65 waterproof 2 LED strips to choose from.
Package Included:
1 roll * 5 m LED strip (not including any controller, connector or power supply)
- 1. Superb right 5050 SMD LED, high strength and reliability.
- 2. The service life is up to 50,000 hours
- 3. Continuous length, 5 m packaging.
- 4. Flexible belt for bending and bending
- 5. Complete smooth and uniform light diffusion to solve uneven illumination problems
Product description
5M RGB SMD5050 LED Lightings uses a mixed color to make the ribbon have a highly complex chromatography, which is milded to the eye.
A total of 300 LEDs are ideal for family, hotel, club, disco, bar, building, shopping mall holiday, event, exhibition decoration.
Turn monochrome or mixed color, brighter, brighter or darker, use the related remote control, you can operate this article very easily.It will bring you a lot of fun and beautiful.
DIY mode:
The RGB 5050 LED lamp strip is very flexible, which is very suitable for curved bending.You can also use this product to cut and install any shapes or angles you may need to adapt to your lighting purposes.
specification:
LED type: 5050 SMD LED RGB
IP20 does not water
Size: 5m / volume
Number of LEDs: 60 LED / M (a total of 300 LEDs)
Power: 14.4 watts / m
CRI:> 80
Beam angle: 120 degrees
Work temperature: -20 ° to highest +60
Certification: CE and RoHS
Package list:
1 * 5M LED lamp strip
note:
1. Remote control must be aligned with the infrared receiver of the controller
2. This product can only access DC24V power supply
3. Please follow the instructions and use this product.
4. Children under the age of 16 must use this product under adult supervision.
5. Do not include power and controllers.
Weight 118 grams
Product size 18 x 18 x 2 cm
Number of lights 300
Including the battery?No
Need a battery?No
Wattage is 14.40 watts
- Warranty Related: Reply within 24 hours.If you have any questions, please feel free to contact us, we will provide you with quality and fast service.
- A variety of colors: You can choose 16 colors, or you can customize six types of light strips that change your mode yourself.
- Switchable and connectable: Color change LED strips can be cut along the cutting mark each of 6 LEDs without damaging the rest of the strip.Its tape backing can be suitable for a variety of dry cleaning planes, not easy to fall off.
- Ideal for interior decoration: RGB LED lamp strips are ideal for home decoration, such as restaurant, bedroom, upstairs, kitchen, cabinet, TV backlight, mirror, etc.
- We will send you the corresponding plug power adapter according to your area.
- Used to test the curing power of dental curing light
- Using a light guide, center the light source over the detector window read the useful curing power in mw/c㎡
- Digital display of measured values for easy reading
- High-precision readings, fast and accurate
- Need three batteries(not included) to use the light meter
User questions & answers
Question: | how do you turn on the device |
Answer: | Coincidence. I weigh 270lbs. But I got it for an 8 year old boy. Now I’ve seen it take serious abuse. Jumping on it; two boys at once; and the construction is *solid*. So I’m gonna say yes. But wear all the pads and a helmet. 😏 |
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