Diagnostic & Testing

Electricity explained in a way that makes it useful for mechanics. Unbelievable 200 page guide to every aspect of electrical troubleshooting. Written by a mechanic for real world, hands-on testing. Batteries/Testing explained Relays, potentiometers,...

Relay Buddy 12/24 is a quick go / no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12 and 24 volt relays. If the relay fails the test, 3 different trouble codes will advise you of the possible causes for the...

Only dye needed for engine oil, transmission fluid, power steering fluid, hydraulic oil, gasoline and diesel fuel Service stickers included Works with most UV lights One bottle per application, 6 Bottles (1 oz./30 ml) - 6 applications From the...

Use to back probe harness connectors, fuel injectors and automoitve sensors Straight, 45 degree & 90 degree stainless steel probes in .027" and .040" diameters Color coded for easy identification Insulated body for testing up to 30 volts Compatible...

Tool Aid 28200 12/24/42 Volt Circuit Tester. For use with 12, 24 and 42 volt Hybrid systems Computer safe, draws 3 milliamps at 12 volts Has two (2) LED's foe easy voltage identification: blue for 12 and 24 volts and red for 42 volts Automatic...

Pro kit includes 5 new adapters, greatly expanding relay testing capability 3 new adapters for testing shielded relays 2 adapters allows testing of two new relay types - commonly used for fuel pumps and other powered devices Quick off-the-car...

Kit Makes Testing Relays or Live Circuits Quick and Easy. Extends the Functionality of a DMM. Turns All Fuse and Relay Boxes into Test Points. Includes 8 Jumpers to fit most popular relays. Includes Test Lead Kit for easily and securely connecting Relay...

Unit is designed for use with digital multimeters,lab scopes or graphing meters. With 1000 Amp capabiltiy, this instrument can be used to test starting and charging systems. It can even be used to test relative compression when used with your lab scope...

DC Amps 0-6A, 60A (resolution .01A). AC Amps 0-6A, 60A (resolution .01A). Compatible with many lab scopes and graphing multimeters. Use to generate current waveforms for diagnostic analysis. Small jaw opening of 3/8 inches.

35 Test Ranges Auto-Ranging 8 Tests: Amps, Volts, Ohms, Frequency, Capacitance, Duty Cycle, Continuity, and Diode Test Continuity Beep Measures Low Amps Down to 10 Millamps, High Amps, Up to 200 Amps 10 Meg/Ohm input impedance.

High quality unit with 37 test ranges and 10 testing functions - high current capability, good for starting/charging diagnostics Auto power-off, Auto-ranging, Data Hold - Built-in Temp readings Temp probe and carrying case included - full ...

The ESI 585K comes with a zippered soft storage case to protect and store the digital multi-meter and all the accessories. Includes two sets of test leads, RPM pick-up, temperature probe, protective holster and instructions manual. Analog Bar-graph...