The RH/T sensor module AM2301B is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor and a standard on-chip temperature sensor, its performance has been greatly improved or even exceeded the reliability level of the previous generation of sensors, the new generation of temperature and humidity sensor, improved to make its performance in harsh environments more stable. Every sensor has been rigorously calibrated and tested. The structural design of the product shape has a certain protective effect on the sensor, and it is equipped with fixed mounting holes to make the product adapt to more installation scenarios