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
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB System
$45.75Battery Protection ModuleAdd to cartNote:The protective plate cannot be used in parallel.SpecificationsContinuous discharging current:45AInstantaneous diacharge current:100ACharging voltage:67.2VCharging current:45AOver-charge detect:4.28±0.05VProtect delay:100msOver-charge release:4.08±0.05VBalanceDetect voltage:4.2±0.025VRelease voltage:4.2±0.05VBalance current:60±5mAOver-discharge:2.55±0.08VOver-discharge detect delay:50mSRelease voltage:2.9±0.1VDetect voltage:150mVDetect delay:15mSCurrent detect:130±10AResistance:≤15mΩWorking current:≤60uASleep current (when over-discharge):≤10uAWorking temperature:-30~80→Size:120 x 60 x 9mm:Details:Specification:Unit:RemarkCharge:Charging voltage:71.4:VRecharging current:45 (max):ADischarge:Continuous discharge current:45 (max):AInstantaneous discharge current:150 (max):AOvercharge protection:Overcharge detection voltage:4. 25 ±0.025:V:Single coreOvercharge protection delay:100:mSOvercharge release voltage:4. 05 …
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB SystemRead More
25W 5V Foldable Solar Panel Solar Power Bank Pack with Dual USB Port for Backpack Camping Hiking
$78.68Smart Robot & Solar PanelAdd to cartFeatures∵ High-Efficiency Ponocrystalline Cell, up to 19%.∵ Eco-friendly & durable material.∵ Applied in charging 5V device as a power bank.∵ Portable, foldable and lightweight, with buckle to be fold firmly.∵ Produce continuous stable output even in cloudy day.∵ Suitable for outdoor activities, outdoor working or emergency.ParametersPmax:25WUSB Output Voltage:5VUSB1 Output Current:2000mA USB2 Output Current:1200mAQuantity of Single …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328
$66.77DIY Electronic KitsAdd to cart3Pcs DIY Multifunction Transistor Tester Kit For LCR ESR Transistor PWM Signal Generator M328FeatureA key measurement operation , auto power off delay . Shutdown current is only 20nA, support battery operation.Automatic detection PNP and NPN type bipolar transistors , N, P -channel MOSFET, JFET FET , diodes , two diodes, thyristors , resistors , capacitors …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328Read More
5pcs 2 Slots AAA Battery Box Battery Holder Board with Switch for2xAAA Batteries DIY kit Case
$9.36Other Module BoardAdd to cartSpecificationsSupport Model:AAA BatteryShell material:ABS Cable:1007 (150mm)Metal spring:carbon steel nickel plating by NCAA salt spray test, stainless steel spring.Size:53*24*13 mmPackage Included5 x 2 Slots AAA Battery Holder Plastic Case Storage Box
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module Converter
$86.01Sensor & 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 …
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module ConverterRead More
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10A
$18.51Relay ModuleAdd to cartDescriptionTiming from Microseconds to HOURSSimple CircuitryPrecision Pulse Generation / Timing,FMAX = 500 KHzUse a single 4 to 16 VDC supplyExcellent temperature stability 0.005% / °CAdjustable Duty CycleCountless Application and Information SourcesChip (NE555) CharacteristicWhen unconnected with the supply power, the state of the module is inchNOinch [ normal open ], CB and COM are conductive. CK …
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10ARead More
Reviews
There are no reviews yet.