This document introduces the features and characteristics of the AQ3485 network outdoor temperature and humidity transmitter produced by Guangzhou Aosong Electronics Co., Ltd, including high-quality digital integrated sensors, reliable single-chip processing circuits, strong resistance to chemical pollution, digital automatic calibration function, intuitive LCD display, etc. It is widely used in meteorology, national defense, scientific research, postal and telecommunications, chemical industry, environmental protection, medicine, hotels, grain storage, HVAC and other fields.