100A Digital Spot Welding Machine Time & Current Control Display Spot Welder AC Transformer Controller Board Temperature Sensor        Features:  Integrated temperature and fan control, no need for external temperature control Large size color display, simple structure and clear display. Imported STM32 single-chip microcomputer, with fast running speed, strong anti-interference ability, stable and reliable. Pneumatic parameters can be changed, continuous pneumatic spot welding point 1-10 can be adjusted, and can be changed according to machine characteristics. The temperature detection fan control has a temperature protection upper limit function, and the fan has normally open, normally closed, and intelligent control modes. Support personalization: name, rated voltage, secondary voltage, rated power, address, etc. Bilingual optional, English interface and Chinese interface for your choice. Terminal Description:  1: Foot switch terminal, connected to mechanical switch 2: Control board power supply, connect AC 9 to 12V power supply, must be AC 3: Temperature sensor terminal 4: Status terminal, controller welding status, output during welding 5: Fan terminal, connected to DC12V fan 6: Solenoid valve terminal, connected to DC12V pneumatic solenoid valve Package Included:  Spot Welder Controller X1 temperature sensor X1 Cable X1