Manual Transfer Switch uses specially processed low-potential binding posts, which reduces the parasitic potential of all links from front-end wiring to data scanning and collection. It can be compatible with the wiring of thermocouples, two-wire heating resistors, three-wire heating resistors, and four-wire heating resistors. It can automatically complete the switching function of the three-wire heating resistor inspection timing and eliminate the inner lead resistance of the three-wire heating resistors.