Circuit Testers

This item is brand-new, factory sealed. Designed to safely check voltage and/or ground on several electronic systems, including wiring, fuses, battery, cabling, sensors, switches, and more Features ergonomic grip design for comfort and safety ...

This item is brand-new, factory sealed. Tests voltage in 6 and 12V systems by grounding the clip and touching the probe to the point being tested Tester bulb will light if power is present 4-1/2 foot lead length Replacement bulb part number 12675

This item is brand-new, factory sealed. Used for testing electrical circuits Retractable test leads pull out and stay at desired length Rewinds test leads into its own protective case when not in use Has insulated alligator clip 18 gauge copper wire ...

This item is brand-new, factory sealed.Features and Benefits:Used for testing electrical circuits in cars, trailers, boats, and more Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in use...

This item is brand-new, factory sealed. Included adapters work interchangeably with banana plugs on the 2 x 15-ft. retractable test leads Used for testing electrical circuits in cars, trailers, boats, etc. 15-ft. wire allows you to connect the leads...

This item is brand-new, factory sealed.Features and Benefits: Safe for automotive computers Won’t damage sensitive electronic components Draws less than 21mA at 12 volts DC Operating range 3-28 volts The red light indicates positive...

This item is brand-new, factory sealed.Features and Benefits: Quick check both AC and DC current up to 28 volts with the power on Helps locate shorts or breaks in wiring Complete with insulated grounding clip Skin packed Shipping wt...

This item is brand-new, factory sealed.Features and Benefits: Quickly tests voltage up to 28 VoltsWorks on any circuit up to 28 volts including many heavy duty applications on large trucks and farm implements: heavy duty probe, cord and clampThe probe is...

This item is brand-new, factory sealed.Features and Benefits: A heavy duty circuit tester for lifetime use The probe, handle, cord and clamp are reinforced for extra durability Comes with a strain relief spring on the cord Skin-packed ...

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...