Diagnostic & Testing

Fundamental Electrical Troubleshooting Complete 200 page guide to every aspect of electrical troubleshooting – explained in a way that makes is useful in the shop. Written by a mechanic for...

180 LOADpro Test Leads load the circuit to see if current can flow. LOADpro finds these problems quicker: High Corrosive Resistance Shorts to Ground Open Circuits By loading the circuit,...

This hard working timing light is accurate up to 8000 RPM An extremely bright light will help you time the engine Inductive pick-up clips over spark plug wire - no adapters required Precision...

Extended length of 64 inches Flexible silicon back probe pins - great for connectors on fuel injectors and MAP sensors Large Crocodile Clips - good for clipping to grounds and battery terminals...

This one is the result of interaction with the techs and mechanics at shows and over the phone. Guys have been wiring up fuse holders in their test leads forever. Why? It saves your Multimeter fuse...

Professional Timing Light with High Visibility LED display Measures ignition spark advance from 0-90 degrees 2 and 4 Stroke Tachometer measures engine speed up to 9,999 RPM Brilliant Xenon flash at...

Over 1 Hour of video training included... Includes LOADpro® Dynamic Test Leads, 200 page Electrical Troubleshooting Book, DVD training video - Sullivan Training System, and Compass for Alternator and...

Provides a good ground for test light and multimeter diagnostic use Especially useful in the auto industry where testing is Provides a good ground for test light and multimeter diagnostic use...

Use with 56810 or 60610 to Easily and Securely Connect Relay Test Jumper to a Multimeter Can also use banana plug to pin probe adapter with pin probes Kit contains two terminal to banana tip wires,...

Kits provide technicians with assortments of back probe pins with standard banana plug connections An assortment of straight, 45°, and 90° back probe pins with standard 4mm female banana plug...

Kits provide technicians with assortments of back probe pins with standard banana plug connections An assortment of straight, 45°, and 90° back probe pins with standard 4mm female banana plug...

Includes 8 Jumpers to Fit Most Popular Relays. Also Includes Test Lead Kit and Relay Puller Pliers. Jumpers have tabs for clamping and flat pads t