Circuit Testers

This item is brand-new, factory sealed.keeping an electric circuit tester in your truck or camper is a practical and safety precaution that can enable you to diagnose and address (possibly even prevent) electrical issues while traveling. Store this...

This item is brand-new, factory sealed.Features and Benefits: By far the largest selling and most widely used automotive circuit tester  Quickly checks all 6 and 12 volt systems Use with power on Supplied with 48" ground wire ...

This item is brand-new, factory sealed.features and benefits: ingenious device prevents stabbing your finger, a must for every technician! quickly, easily and safely guides the pick point of most circuit testers into the center of all primary...

This item is brand-new, factory sealed.features and benefits: checks ac or d wiring up to 36 volts use to check series-parallel switches and solenoids on tractor-trailer starter systems an absolute must for the trucking, farm, heavy...

This item is brand-new, factory sealed.S&G Tool Aid 22900 - Jumper Twins Test LeadsS&G TOOL AID CORP. has for over 40 years supplied the automotive, heavy duty, electronics, agriculture, marine and related industries with a wide range of general tools,...

This item is brand-new, factory sealed.S&G Tool Aid 23100 - Extra Heavy Duty Test LeadsS&G TOOL AID CORP. has for over 40 years supplied the automotive, heavy duty, electronics, agriculture, marine and related industries with a wide range of general...

This item is brand-new, factory sealed.Features and Benefits:Use to back probe harness connectors, fuel injectors and automotive sensors. Kit includes: Straight, 45 & 90 degree, stainless steel probes in .027” and .040” diameters...

This item is brand-new, factory sealed.Features and Benefits: After faulty system is indicated, use to find short location Works on all 12 volt systems Supplied in clear storage boxThe number and complexity of electrical wiring systems in...

This item is brand-new, factory sealed.Features and Benefits: The best quality electrical circuit tester available for checking 6 and 12 volt systems Has heavy duty battery clip 5' of tough, flexible, heavily insulated rubber wire is retained in...

This item is brand-new, factory sealed.These Circuit Testers feature an extra long wire that stretches up to 12 feet for use, then automatically retracts. Quickly and easily check electrical circuits and accessories on 6 and 12 volt systems. Great for...

This item is brand-new, factory sealed.A modern circuit tester with time tested durability. Quickly and safely tests high and low voltages (power and ground) on all vehicles, including computerized engine and body controls. Tests 6, 12, and 24 volt...

This item is brand-new, factory sealed.Features and Benefits: Sharp, small diameter probes slide along the wire into connector to back of circuit Bent at 90 degrees with longer, more durable pins No need to disconnect connector and terminal ...