GY-213V-HTU21D Temperature Humidity Sensor Module

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The HTU21D sensor is a self-contained humidity and temperature sensor that is fully calibrated during manufacture. The sensor can operate from 1.5V to 3.6V, has selectable resolution, low battery detect, and checksum capability.
This module based on HTU21D that is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for weather stations or humidor control systems. All you need is two lines for I2C communication and you'll have relative humidity readings and very accurate temperature readings as a bonus.
There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built-in 4.7k pull-up resistors for I2C communications. If you're hooking up multiple I2C devices on the same bus, you may want to disable these resistors.

Input Voltage: 1.5V ~ 3.6V
Output Type: Digital
Humidity measuring range: 0 ~ 100% RH
Humidity Accuracy: ±2% RH (at 10% RH to 95% RH)
Temperature measurement range: -40℃ ~ 125℃
Temperature Accuracy: ±0.3 °C (at 25°C)
Maximum power consumption: 2.7uW
Interface: I2C
Pin Number: 4 Pin

Note: Full drops of water can damage the sensor. We recommend wrapping the board in Teflon/irrigation tape for extreme conditions where water droplets may find their way into the sensor.

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