Works as intended for the most part. Had some issues with it fitting my terminal post. It could definitely fit better, but this is battery dependent so not enough to destroy the ratings. It would be nice if someone would invent a 2 post terminal kit so you wouldn't have to wire a ground for the LED (internal ground for the positive terminal LED). No biggie. Looks...meh. Giant brand name on the acrylic cover so it's not going to get 5 stars from me. Machining is acceptable. The shape is a little extravagant. Durability might be a problem down the road. I haven't had to pull the positive terminal in awhile, but if you do on a regular basis, the securing hex head screw could wear out on you. This problem is compounded in my case since my positive terminal doesn't fit it nicely (terminal is too small and short). Sits up with 1/2" to spare and a little too small on diameter so it's hard to get the hex head screw to catch.

This battery terminal has what you need.
4 out puts n led volt meter.

It's pretty awesome. The only thing is, is that you need to wire a switch in line with the ground wire. Otherwise it'll always be draining your battery when your car is off. Or you can just touch the wire to the ground every time, but you could shock yourself by doing that. It's very handy for when you want to do a low voltage test on your alternator, if you don't have the right equipment. All and all it's worth it.

This is accurate in what it displays, and is a good addition to a show vehicle.