Circuit Testers

This item is brand-new, factory sealed.Lisle 28620 Circuit Tester with Buzzer Heavy-Duty Tester Signals with a Light anda Buzzer. Tests low voltage up to 28 volts. Spring loaded hook canbe removed to use the probe tip only. Can also be used...

This item is brand-new, factory sealed.Checks Both Low Voltage and Spark Plug Wires. The low-side checks AC and DC current up to 28 volts with power on. The high-side checks spark plug wires without piercing. Complete with insulated clip.

This item is brand-new, factory sealed. A 2-in-1 Tester that Tests Circuits up to 28 Volts and Works as a Jumper Wire for Power or Ground. Heavy-duty circuit tester for checking low voltage up to 28 volts. By depressing the red button the tester...

This item is brand-new, factory sealed. Set of Four Relay Test Jumpers Make Testing Relays or Live Circuits Quick and Easy. Set includes four jumpers to fit the most popular size relays on domestic and import vehicles. Simply remove relay to be tested,...

This item is brand-new, factory sealed.Lisle 56850 Relay Test Jumper, Green Green Relay Test Jumper Brand: Lisle Item Weight: 1 pounds Product Dimensions: 2 x 1.8 x 1.2 inches Item model number: 56850 Manufacturer Part Number: 56850 LI56850...

This item is brand-new, factory sealed.Features and Benefits: Now covering more applications including some Honda, Nissan, Toyota, newer Ford and GM mini micro relays as well as International trucksSet makes testing relays or live circuits quick and...

This item is brand-new, factory sealed.Features and Benefits: Includes 8 jumpers to fit most popular Relays; also includes test lead kit and relay puller pliersJumpers have tabs for clamping and flat pads to place test leads on; no need to pierce wires...

This item is brand-new, factory sealed. Provides the technicians with an assortment of back probe pins with standard banana plug connections. Alligator clips allow many ways to connection to multimeter probes. The probes are fully insulated which...

This item is brand-new, factory sealed. 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 for use with pin probes. Kit contains two terminal to banana tip wires, two...

This item is brand-new, factory sealed.Features and Benefits: Provides easy access to check current or voltage using nearly all of the fuse and relay boxes used on vehicles todayIncludes five pairs of terminal lead wires with different size male and...

This item is brand-new, factory sealed. Multi-functional design allows testing range of 326 volts. Bright red and green LEDs interpret voltage signals such as ground, power, and frequency. Tests fuel injectors, solenoids, presence of serial data, and...

This item is brand-new, factory sealed.Features and Benefits: Works on 12-24 volt systems Features 7" stainless steel probe 24' coil cord Extra large clamp