An essential diagnostic tool for testing potentially faulty electro mechanical relays. This tool tests both 12V / 24V relays, with four / five pins (not late model Ford 4 pin).

Simply plug the relay into the tester - using 12V vehicle power, the relay will be cycled 10 times with the tester applying a signal to the relay coil while checking the function of the internal contacts. The tester applies load to the internal contacts to detect excessive resistance.

• Quickly test 3 common types of electro mechanical relays
• Test relay coil resistance / relay contacts / cyclic testing
• Relay coil resistance: 20 - 500 Ohms
• Test voltage for coil: 9V
• Contact resistance threshold: 200 milliohms

The Power Probe 4 Master Combo Kit combines the Power Probe 4, ECT3000 and various accessories to provide the ultimate combination of diagnostic and circuit-testing capabilities.

The Power Probe 4 provides simplified testing of Motors, Lights, Relays, and Sensors, and even Fuel Injectors. Also, like all Power Probe circuit-testers, it supplies Power and Ground for functional component testing on or off the vehicle. The ECT3000 will help you trace short and open circuits quickly and accurately.

The ET7850 is a compact, handheld diagnostic tool that combines a 100MHz dual-channel oscilloscope, a 20,000-count multimeter, and a comprehensive automotive diagnostic suite - all in one rugged device, along with an extensive accessories kit. Designed for field technicians, mechanics, and engineers, it delivers precision, portability, and versatility for real-time fault detection and waveform analysis.

A key feature for automotive professionals is a built-in waveform library for ignition systems, sensors, injectors, and bus protocols. This supports diagnostics for independent & distributorless ignition systems, crankshaft & camshaft sensors (inductive & Hall effect), ABS, MAP, lambda, knock, and coolant sensors,CAN, LIN, K-line, FlexRay bus systems, common rail diesel injector analysis etc. Plus the ability to import (and compare) known good waveforms!

• 2 channel oscilloscope
• 100MHz Bandwidth
• 500MSa/s Sampling Rate
• Type C rechargeable battery

This noid light kit offers an efficient way to check electronic fuel injection (EFI) and idle air control signals. Simply disconnect the component. Plug the appropriate noid light into the wiring harness. Crank the engine, and a bright LED flash will indicate signal operation.

Supplied with a fibre optic extension lead for convenience.

• Compatible with Bosch PFI | Ford TBI | GEO PFI | GM SCPI | GM TBI
• 2x idle air control testers
• Replacement individual noid lights available separately