Wanted to say I bought isspro ev2, and wish I got auto meter. Isspro's clipsense for transmission temp is bull, not even close. On highway the wind cools the sending unit. I know because once i pull off, the last time I watched the temp raise from 100* (lowest point) and raise 40* before I cussed myself and quit watching and drove. The turbo psi starts from 2psi even when truck off key on, it reads normal, but would go below 2psi. That would happen sometimes. I'm trying to get ahold of isspro now to get answers.... IMHO buy autometer. I have friends with race cars running gauges from them 7 years old and still 100% accurate.