The AQ3485 network type temperature and humidity integrated transmitter adopts high-quality digital integrated sensors AM2302 as the probe, equipped with reliable digital processing circuits, so as to convert the temperature and humidity in the environment of -40℃~80℃ into the corresponding standard MOBUS RS-485 signal, which can be reliably collected and monitored by the upper computer system. It has the characteristics of small size, light weight, wide range, high accuracy, fast response speed and good long-term working stability, which makes it widely used in meteorology, national defense, scientific research, post and telecommunications, chemical industry, environmental protection, medicine, hotels, grain and other material warehouses, air conditioning and other fields that need to measure and control temperature and humidity in the air.