Multi-parameter sensor used in risk avoiding chamber

A multi-parameter sensor used in a risk avoiding chamber is composed of a carbon monoxide sensor, an oxygen sensor, a hydrogen sulfide sensor, a differential pressure sensor, a methane sensor, a carbon dioxide sensor, an atmospheric pressure sensor, a temperature sensor, a humidity sensor, an amplifying circuit, a one-chip microcomputer, a power supply circuit, an LCD display circuit, a storage circuit, an infrared receiving circuit, a serial communication interface circuit and the like. The power supply circuit supplies a stable DC working power supply for the whole machine, and the one-chip microcomputer is connected with the sensors, the amplifying circuit, the infrared receiving circuit, the LCD display circuit, the storage circuit and the serial communication interface circuit separately, sends the acquired sensor data to an LCD for real-time display, and sends out the data via the serial communication interface circuit. The multi-parameter sensor used in the risk avoiding chamber of the utility model has the characteristics of high precision and stability, low power consumption, many sensor parameters, etc., and enables the sensors to be calibrated and demarcated via an infrared remote controller.