Features: This product is a double pulse adjustable Spots welding machine that uses large power relays The Spots welding machine is firmly welded, does not burst pipes, is stable and wear resistant. The welding equipment adopt metal and PC, with durability. Adopting a colorful screen, the display is clear. Using a rotatable Encoders for easy and controllable operating. Specifications: Material:PC,Metal Pulse 1: 1-20 milliseconds adjustable Interval: 0-99 milliseconds adjustable Pulse 2: Adjustable from 0 to 20milliseconds Automatic Spots welding: adjustable within 0.1-5seconds; When automatically set to 0.00 seconds, it is in manual modes Input voltage: 5-15v Buzzer sound on/offs Historical Spots welding records Screen rotation angle adjustable from 0 to 180 Automatic shutdown function, adjustable for 5-60minutes Supports switching between Chinese and English Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set Spots Welder Control Board