Unique Range of Trailer & Towbar Circuit Testers
Glenn Electronics manufactures, supplies and distributes a range of easy to use, 
off-the-shelf and custom built Circuit Tester units designed to meet your towing requirements.
We offer a selection of handheld units for testing
12N lights and 12S auxiliaries circuits on trailers and towbars, which are operable by one person from the rear of the trailer or from the driver's seat.
Tester units operated at the rear of the trailer
have clearly labelled push buttons for the individual circuits. Testers units used at the driver's seat have clearly labelled LED's to indicate that a circuit is working correctly.
Dual trailer/towbar models are available, as are models with additional features, including:
- internal re-chargeable battery,
- ammeter,
- buzzer indication
- and waterproofing.
Glenn Electronic's range of Circuit Tester models allow you to test the wiring circuits on vehicle towbars and most trailers and towable units, including:
- car trailers
- boat trailers
- horse boxes
- and caravans.
