MM-315B is a hand-held, multi-function monitor for resistance spot welders. It is one-sixth (1/6) the size and one-third (1/3) the weight of Miyachi Unitek's conventional weld checkers.
The pocket size weld tester is perfect for troubleshooting all types of resistance spot welders. It literally puts all the welding data in the palm of your hand.
Resistance Welding Monitoring & Checkers