Glow Plug Tester provides fault detection through LED's for a quick analysis; Short Circuit, Over Current, Normal Operation, Open Circuit/Under Current.

Benefits:

Glow Plug Tester allows for testing without removing glow plug from engine.

Powers the glow plug to test the plug in it's operating state.

Test much more accurate than a cold resistance test, which can miss short circuits.

Tester uses a current measurement to accurately determine proper operation and check for short circuits.