Review on Green Power Probe IV with Case and Accessories - PP405AS: Multi-Function Car Diagnostic Test Tool with Digital Volt Meter, ACDC Current, Resistance, Circuit and Fuel Injector Tester by Christopher Smith

I make a lot of my own electronic diagnostic equipment and while it doesn't do what I did it works as advertised and will not disappoint , apart from the skills of the user ie This is not a toy and the damage it can do to your vehicle can cost many times more than the tool itself. Let me be clear, volt ohm meters measure electrical pressure/ Volt and some measure current, resistance etc. but VOM = Volt Ohm Meter is a measuring device. POWER PROBE is a measuring device, but a power-generating device. and also, designed to power electrical circuits, designed to supply a large current to the circuit to turn on the electric motors of fans etc. Connected to the wrong wire or grounded incorrectly, it can power the fan motor, but the path to ground can go through your car's processor. And it can be a big Oh! I don't know what car you have, but a Honda car computer costs many times this tool. What this tool does is generally not required in most electrical diagnostics among professionals, and as a licensed heavy equipment electrician and electrical engineer, building elevator mechanic, etc. etc. etc. Even I have to be alert and careful when using this tool, it is not a toy. I would only recommend this tool. For people with the highest level of electrical engineering expertise, newbies, hands off, this device, POWER PROBE, can transform your status from HERO to ZERO in a split second. Hope this helps …………………………… B