I have a G-Tech Pro SS I never use anymore. There's nothing wrong with it at all, I just never use it. It was within .2 of a second on both times I went to the track so it's pretty damn accurate. It's got a few scratches from normal use but all are minimal.

I'm asking $140 shipped including fees OBO.

 

plugs into cig lighter?

 

Yep and it has a push button on/off switch on the adapter too so you don't have to plug and unplug it.

 

Sold!!!