I bought one of these a couple years ago and it works great for the price, there is a group buy going on now over in the Tacoma site and will probably get in trouble for cross posting.
*OFFICIAL* UltraGauge EM 1.2 Holiday Group Buy GB (ScanGauge Alternative) - Tacoma World Forums
*OFFICIAL* UltraGauge EM 1.2 Holiday Group Buy GB (ScanGauge Alternative) - Tacoma World Forums