Truck-Lite 97100 Quick Check Lamp and Circuit Tester (12V Diagnostic Troubleshooting Tool)

Diagnose lighting failures instantly and keep your fleet road-ready with the portable troubleshooting power of the Truck-Lite 97100 Quick Check Lamp and Circuit Tester. Engineered as a rugged diagnostic tool for commercial truck fleets, mobile repair mechanics, and heavy-duty trailer technicians, this compact handheld device allows you to quickly verify the electrical integrity of vehicle lighting systems and wiring networks right at the bumper or trailer plug.

Instead of wasting valuable shop hours tracing intact wires by hand, the 97100 provides rapid operational feedback. It is designed to evaluate all standard Truck-Lite sealed incandescent or LED lighting setups and their corresponding harness networks. Powered by a single, standard 9-volt battery, this standalone electrical tester completely isolates the lighting circuit, allowing you to confirm whether a failure lies in the lamp itself or within the vehicle’s main power distribution grid.

Housed in a impact-resistant thermoplastic shell, this heavy-duty unit handles the grease, drops, and grease-smeared conditions of busy vocational maintenance bays. By simplifying daily safety inspections and pre-trip DOT compliance checks, the Truck-Lite 97100 helps prevent safety violations and expensive over-the-road downtime.

**Discontinued - Available While Supply Lasts