It's an easy tool to tell your relay working or not.
The tester feels better built than I expected for the price. The clips are solid, the relay sockets fit well, and the controls are easy to understand. I tested a few known good relays and one old bad relay and it identified them correctly. I would have liked a slightly longer cable, but overall it works very well.
I’m not a professional mechanic, but I do most of the maintenance on my own vehicles. This relay tester is very straightforward and doesn’t require much experience to use. I tested several relays from my truck and the results were easy to understand. It’s one of those tools you may not use every day, but when you need it, it can save a lot of frustration.
I was chasing an electrical problem and wasn’t sure if the relay was actually bad. The RT100 made it really easy to check the relay before replacing anything. Setup was simple and I had a result in just a few seconds. Much faster than pulling out a multimeter and testing everything manually. Very useful tool to have around the garage.
I bought the OBDResource RT100 to help diagnose a few electrical issues on my truck, and it has been very useful. The tester is simple to operate and gives a clear result quickly, which saves a lot of time compared with checking relays manually.
I especially like that it can test different automotive relays without a complicated setup. The build quality feels solid, the clips and sockets are easy to use, and the result is easy to understand.
This is a very handy tool for DIY mechanics, technicians, or anyone who works on automotive electrical systems. Definitely worth keeping in the toolbox.
Really great product to test different kinds of relays, it saved me lots time to guess the issues. Highly recommend!
