Has anyone else used one of these?

http://www.dakotadigital.com/index.c...rod/prd128.htm


I installed one in my FZJ80 diesel swap, and it seems to be working great, although there was a strange event where it went out of calibration. I suspect that something bounced against the calibration buttons, but not entirely sure.

 

Yup, I'm using one. It took a little while to get the calibration sorted out, but has been great since.