Daytona Sensors - Part #112002 - WEGO™ III
http://www.daytona-sensors.com/wego-...-displays.html
I put one in my dragster - it works great - simple to hook up - you can view it on the display in real time and it also records - and they have free, very easy to use software for it. I put a simple toggle switch in the power wire so I can turn it on and off to control the recording time.