3Pcs GY-21 HTU21D Humidity Sensor with I2C interface industrial High Precision
$25.74
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digital
converter, signal processing, calibration data, and an I2C Interface.
The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long term stability.
The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.
The Si7021 is available in a 3×3 mm DFN package and is reflow solderable.
It can be used as a hardware- and software-compatible drop-in upgrade for existing Featuring precision sensing over a wider range and lower power consumption.
The Si7021 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature, in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.
Specification
Power supply:3-5V
Relative humidity:± 3% RH (max), 0-80% RH
Temperature:±0.4°C (max), -10 to 85°C
Operating range:0 to 100% RH
Operating range:Up to -40°C to +125 °C
Wide operating voltage:1.9V – 3.6V
Low power consumption:150 μA active current
Standby current:60 nA
Size:1.3*1cm/0.51*0.39inch
Applications
HVAC/R
Thermostats/humidistats
Respiratory therapy
White goods
Indoor weather stations
Micro-environments/data centers
Automotive climate control and defogging
Asset and goods tracking
Mobile phones and tablets
Package includes
3 x GY-21 Humidity Sensor
Weight | 0.045 kg |
---|
Customers Also Viewed
WQ-BX-S2 Water Filter Activated Carbon Cartridge Replacement Refrigerator Filter for SAMSUNG
$52.64Switch AccessoriesAdd to cartSpecificationsMaterial:PC+Activated CarbonMin.Working pressure:207 kPa/30 psiMax.working pressure:689 kPa/100 psiMin.operating temperature:0.6°C/33°FMax.operating temperature:38°C/100°FRated service flow:0.5gpm(1.89L/min)Rated capacity:300 gallons(1136 liters)Features-Replace the filter every 6 months.-Made of coconut shell carbon fiber and PC,nice quality and filter performance.-Help to filter water,reduce residual chlorine and peculiar smell,which makes water taste better.-The refrigerator water filter have been tested and certified by NSF International against …
ESP32 OLED Module ESP32 OLED WiFi + bluetooth Dual ESP-32 ESP-32S ESP8266
$26.23Smart ModuleAdd to cartDescriptionESP32 is already integrated with antenna and RF balun, power amplifier, low noise amplifiers, filters, and the power management module.The entire solution is the least amount of PCB area. this board is 2.4 GHz dual mode WiFi and bluetooth chips by tsmc 40nm low power technology, power and optimized RF characteristics, which is safe, reliable, …
ESP32 OLED Module ESP32 OLED WiFi + bluetooth Dual ESP-32 ESP-32S ESP8266Read More
DIY Holographic Projection Building Block Virtual Imaging Blocks Toys
$19.97PhysicsAdd to cartName:DIY Holographic Projection Building Block Virtual ImagingModel:JY-WIZT00300SpecificationNet weight:189.4gPackaging size:395*285*5mmComposite finished product size:140*140*55mmColour:Log colourMaterial:WoodFeatures– Training of Practical Ability– Types of Science and Education:Physics– Intelligence trainingNote1. Because there may be slight deviation in manual measurement, please refer to the actual object.2. The picture is the finished product after installation and the shipment is the installation material package.3. …
DIY Holographic Projection Building Block Virtual Imaging Blocks ToysRead More
Laser Protective Goggles Glasses 405nm 445nm 650nm Red Blue Blue-violet Laser Eye Protection Safety
$26.31Laser Safety GlassesAdd to cartSpecificationName:Laser Protective GogglesMaterial:PlasticOptical Density (OD):OD4+Typical Laser Wavelength:650nm, 445nm, 405nmFeatures– Good protective performance, can filter 80% strong laser light.– Perfect for laser protection of 650nm red laser, 445nm blue laser, 405nm blue-violet laser.– Offer effective protection for your eyes in laser engraving operation.Package Included1 x Laser Protective Goggles1 x Storage Pouch
5Pcs Rain Sensor Water Level Measure Module Raindrop Analog Sensor Board
$12.88Sensor & Detector ModuleAdd to cartParameterWorking voltage:DC 5VWorking current:less than 35MAType:Analog SensorTest area:40 mm x 18 mmOperating temperature:10 → to 30 →Working humidity:10% – 90% No condensationFixing hole size:Φ3mmProduct size:60mm x 22mmApplicable occasions:Design of water level alarmFeatures:Simple, easy to use, small size, light, cost-effectivePackage includes5 x Rain Sensor
3pcs 36*IR LED Board for CCTV Camera Night Vision 60mm for CS LEN infrared Light Board DC12V
$12.06LED BoardAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.Description– Infrared IR LED boards for CCTV cameras night vision.– Power supply exceeds DC13V may greatly reduce the LEDs operating life.SpecificationsLED Number:36PCSBoard Diameter:60 mm (outside) / 34mm (inside)Power Supply:DC12V / 220mA (typical)Operation …
3pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module Converter
$27.46Sensor & Detector ModuleAdd to cartDescriptionThis is a conversion board for the PCA9306 dual bidirectional voltage-level translator. Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice.The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that’s operational on the low side from 1.0 V to …
3pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module ConverterRead More
Reviews
There are no reviews yet.