Electrical Testers

ATO fuse holder in-line Provides extra overload protection Can prevent your DMM's internal fuse from blowing For use with any digital multi-meter

Heavy Duty Tester Signals With A Light And Buzzer The tester kit tests low voltage up to 28 volts Also finds electrical shorts, checks polarity, d...

Heavy-Duty Circuit Tester with Digital LCD Display to Accurately Show DC Voltage Operating range of 3-30 volts DC work son most vehicle electrical...

Use this device with audio signal to indicate when intermittent short circuit occurs with vehicle at rest or on road test After faulty system is i...

Use to locate shorts quickly and inexpensively in 12 volt automotive circuits Eliminates need to remove upholstery and floor coverings Operates th...

Fully graphical display solves language barrier issues Multi-function testing of battery, starter, alternator, earth ground Test 12V batteries and...

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 pr...

Stop the guess work and repair intermittent electrical connections. Recondition your electrical connections with the 8045 Plow Connector Terminal C...

180 LOADpro Test Leads load the circuit to see if current can flow. LOADpro finds these problems quicker: High Corrosive Resistance Shorts to Grou...

Everything Needed for North American Trucks and Trailers! Test all trailers Test all vehicle tow circuits Clean all truck and trailer electrical c...

TERMINAL CONNECTOR CLEANERS FOR 4, 5, 6, 7 WAY TRAILER CONNECTORS & MORE! Maintenance Tools For Automotive Connectors & Terminals The Firs...

The 76 relay circuit tester is not simply a tool to test a relay It is a tool that can test an entire circuit from the battery to the component in...

Professional Timing Light with High Visibility LED display Measures ignition spark advance from 0-90 degrees 2 and 4 Stroke Tachometer measures en...

Tests both 12V and 24V relays 3 diagnostic trouble codes help define the cause of the bad relay Available as stand alone tester #192 and in kit fo...

Relay Buddy is a quick go / no-go tester for the most common automotive relays. It provides you with an indication of the general health and funct...

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 spa...

For 12 and 24 Volt; and up to 58 Volt Hybrid systems Computer safe - draws 3 milliamps at 12 Volts Has two LED's for easy voltage identification: ...

Use to release Deutsche terminals from connectors Provides coverage for larger diameter wire Color coded for easy identification All metal constru...

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

The 12-piece set of round files, ranging from .030” to .120”, are specially designed to clean Cannon, Deutsche, Bullet, and other Round Pin Female ...

Pro kit includes 5 new adapters, greatly expanding relay testing capability 3 new adapters for testing shielded relays 2 adapters allows testing o...

Diagnoses starting/cranking problems. This product performs a live cranking test on the vehicle to determine exactly which part of the ele...