High-temperature probe switch with sound and light alarm, designed specifically for liquid and material level measurement scenarios requiring real-time monitoring and alarms. It can monitor the liquid levels in equipment such as reactors, storage tanks, containers, and oil tanks in real time, effectively preventing overflow or dryout, and can alert relevant staff to take timely action through real-time alarms, ensuring the normal operation of the equipment. The probe switch features multiple heat sinks on the top of the fork to meet various high-temperature medium measurement needs. Due to its excellent performance in high-temperature liquid level measurement, the high-temperature probe switch is widely used in production and monitoring processes across various industries.