The tester can accurately identify if a Glow Plug is not performing correctly and instantly alert the user. Perfect for testing 7A and 16A plugs, the tester is expected to retail for around £95.00

The glow plug tester checks the current draw of the glow plug at the high level 16amps and the lower level 7amps.

This shows that the current draw is going through the correct cycle for glow plug operation.