Description Description Features: Made of material, solid, durable and good performance, long service life. It is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. Ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems. All you need is two lines for I2C communication and youll have relative humidity readings and very accurate temperature readings. There are only four pins that need to be hooked up in order to start using this sensor. 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 youre hooking up multiple I2C devices on the same bus, you may want to disable these resistors Sensor module only, other accessories demo in the picture is not included. Specification: Material: Circuit Board Size: app.1.5 x 1.6cm/0.59 x 0.63in Color: Red Quantity: 1 Pc Product Parameters: Supply Voltage: 1.5V-3.6V Humidity Measurement range: 0-100% RH Temperature Measurement range: -40 - 105/-40 - 221 Maximum Power Consumption: 2.7uW Communication Method: I2C Humidity Accuracy Range (10%RH to 95%RH): HTU21D2%RH Humidity Hysteresis: 1% RH Measurement Time: 50ms Annual Drift: -0.5% RH/year Response Time: 5 s Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Temperature Humidity Sensor