Voltage monitoring device for machine room temperature

The utility model relates to a temperature and voltage monitoring device for a machine room, which belongs to the technical field of machine monitoring. The temperature and voltage monitoring device comprises an AC voltage detecting input port, a DC voltage detecting input port, a temperature input port, a microprocessor system and a telephone alarm unit, wherein the AC voltage detecting input port is used for acquiring AC voltage data and is provided with a photoelectric isolated circuit, the DC voltage detecting input port is used for acquiring DC voltage data and is provided with a photoelectric isolated circuit, the temperature input port is used for acquiring temperature data, the microprocessor system is used for processing the acquired data and generating alarm signals, the telephone alarm unit is used for receiving the alarm signals and giving a telephone alarm, and the microprocessor system is connected with the AC voltage detecting input port, the DC voltage detecting input port, the temperature inp