Description: This module mainly uses SHT31 temperature and humidity sensor, belonging to SHT3X series temperature and humidity sensor. The SHT3X series is smarter, more reliable and more accurate. They can use more powerful features and higher signal processing capabilities. New features such as enhanced signal processing. Two unique user selectable I2C addresses, an alarm mode with programmable temperature and humidity limits, and a communication rate of up to 1 MHz. Specification: Using SHT31 temperature and humidity sensor High reliability and long stability Reliable technology High signal processing capability Low signal noise Adapted to variety of applications Operating voltage: 3.3-5V Output: I2C interface output Humidity Operating Range: 0 - 100% RH Temperature Operating Range: -40? to 125? (-40 °F to 257 °F) Humidity accuracy: ±2% RH (0 - 100% RH) Temperature accuracy: ±0.2 °C (-40? to 90?) Humidity response time: 8 seconds (tau63%) Material: FR-4 epoxy fiberglass board Product detailed size: 3.6 x 2 x 0.7cm/ 1.42 x 0.79 x 0.28inch Package Includes: 1 Piece SHT31 Temperature and Humidity Module