- Applies a 7+ amp load to the relay and looks for excessive voltage drops
- Test results are displayed by the green, red, or yellow LED
- Can test 7 different types of relays
- Improved test finds bad relays effectively
- Full 7+ amp load flags intermittent failing relays
- Automatic 10 cycle test of the relay
- Easiest and fastest way to check relays
- Settable to 4 and 5 pin relay
- Uses vehicle 12V battery for power