Topdiag P100 Automotive Power Circuit Probe Tester, 12 24V Electrical Short/Open Breaker Finder, AC DC Diode Resistance Relay Tester, Continuity Test Digital Multimeter/Ohmmeters, 20 + 20FT Cable

Perfect replacement for worn-out power probe

Troubleshooting electrical gremlins has always been frustrating for me. I've seen videos of people using power probes to diagnose and test circuits and was impressed, but those things were expensive. Now that the market is saturated with clones and the price has dropped significantly, it's time to have one of these in your toolbox! The ability to determine power and ground sources is huge in itself-doing this with a typical DMM is cumbersome. The super power of these probes is the ability to apply power or ground to a device to test its functionality. This unit feels well built, the extra extension cord is a nice touch. Every home handyman should have one.

I was totally shocked and surprised that this Probe had a little "Lab Scope". Using A/C Voltage screen, I got the 'Scope' and Frequency and Duty cycle. It was able to 'see' my ignition coil primary firing! I would not be making a lab scope diagnosis from here, but, this is great for that first 15 minute view into 'What is going on here'? I am looking forward to proving it can 'See' things like Purge valve duty cycle, along with blower motors, fans etc! The other Probe features appear to be very good and normal. Positive and negative tip, circuit breaker, logic probe indicator, continuity, tone, Ohms, etc. Remember,TRIGGER CONTROL! Don't put power or ground to any computer circuit. Those are the really small wires. If you do, you will surely burn up the computer,.... you know....'Let the smoke out'! It is safest to disconnect the particular load from the circuit before trying to power it up and see if it runs, ie: UNPLUG IT! Happy Trails ,

Great little tool for the price. Only 3 things I would change. 1. Needs more tip options. The only one they give is pretty big and long which brings me to #2. The bag/box they give you doesn't allow for it to be stored without removing the tip every time which is very annoying. 3. Instead of a cigarette lighter adapter a obd2 plug adapter would be better in my opinion since most newer vehicles don't have them any more. All in all for the price its a VERY nice unit.

Helped diagnose starter issue old vs new starter, new starter found defective thanks to this tool. Very accurate! Pretty easy to use.

Nice storage case, easy plug attachments, worked Great

I will like to buy again

Reasonably priced/ works well

muy buena opción y alternativa a power probe aprovechen el precio! saludos desde guanajuato México

Muy bueno y rápido llego antes de la fecha pero el cable es muy corto no son 40ft y aparteel conector es fijo no se desconecta

El producto es bueno pero solo lean bien las especificaciones decía q venía el cable largo y el estuche pero no fue así por eso lo devolví