- Glow plug tester allows for testing without removing glow plug from engine
- Powers the glow plug to test the plug in its operating state
- Test much more accurate than a cold resistance test, which can miss short circuits
- Tester uses a current measurement to accurately determine the proper operation and check for short circuits
Glow plug tester provides fault detection through LED's for a quick analysis; Short Circuit, Over Current, Normal Operation, Open Circuit/Under Current.