Hand-held transformer substation maintenance environment state pre-detection system

The invention relates to the technical field of transformer substations, in particular to a hand-held transformer substation maintenance environment state pre-detection system. The device comprises an SF6 gas sensor, a carbon dioxide gas sensor, a temperature and humidity sensor, an illumination intensity sensor, a master control CPU (Central Processing Unit), a serial communication module, a USB (Universal Serial Bus) serial communication module, a control keyboard, a liquid crystal display, a power management and a lithium battery, the main control CPU is connected with the USB serial communication module, and is connected with the serial communication module for receiving data of the sensor; the system is connected with the control keyboard and is operated by a maintainer; the SF6 gas sensor is used for detecting the state of a sulfur hexafluoride circuit breaker in a power distribution room and a prefabricated substation; the temperature and humidity sensor is used for detecting whether the distribution r