Intelligent CNC spot welding machine: 9-speed precise adjustment, high-speed microcontroller, intelligent program, real-time display of battery voltage, and spot welding intensity can be seen. MOS tube*5: The current of spot welding can reach 1500A, and the welding joints are more penetrating and more beautiful. 1-digit LED digital display, gear voltage alarm is clear at a glance, it is both a spot welder and a voltmeter. Built-in 12-bit high-precision ADC, voltage measurement accuracy can reach 0.01; voltage testable range: 12-14.6V, automatically displays the voltage when connected to the power supply. 9 levels of power adjustment, digital tube real-time gear display. parameter: Extreme temperature:175C Breakdown voltage: 40V On-going internal resistance: 0.53 milliohm min Single load current: 200A MAX Colour:black Material:PCB+Plastic+Metal Size:90 x 60mm Package Contents: 1 x spot welding machine circuit board 1 x casing 2 x input line 2 x spot welding pen 2 x heat shrink sleeve 1 x screw pack 1 x Nickel sheet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.