The module is designed for accurate measurement of humidity and temperature. The sensor is equipped with Si7021 chip with I2C interface, which provides industrial accuracy of measurements.
The chip contains an analog-to-digital signal processing converter, calibration data and an I2C interface.
This module is compared with the normally open type vibration sensor module, vibration trigger for longer periods of time, can drive the relay module,the company produced normally closed type vibration sensor SW-420
