The normal operation of equipment such as servers in the computer room requires a suitable temperature and humidity environment. The temperature and humidity field inspection instrument can detect the temperature and humidity conditions of the computer room in real time. By arranging sensors at different positions in the computer room, it can quickly find local abnormal temperature and humidity. High temperatures may cause the equipment to overheat and crash, and excessive humidity is prone to cause equipment short circuits. The data monitored by the inspection instrument provides a basis for the computer room management personnel to timely start air conditioners, dehumidifiers and other equipment for environmental adjustment, ensure the stable operation of servers and other equipment, and prevent data loss and other problems.