Never been used, brand new in box $200 + postage AEM's Gauge-Type Wideband UEGO Controller features an LED readout and sweeping LED needle that changes colors as AFR changes from rich to lean. The unit's 52mm (2-1/16") gauge housing fits in most gauge pods and can be remotely mounted virtually anywhere. No laptop required for monitoring! Bosch sensor included! 24 Color-coded LED display lights provide immediate reference to engine's air/fuel ratio (AFR) or Lambda Integrated three-digit display reveals AFR or Lambda in real time User-programmable 0-5v analog output included for use with data loggers and ANY engine management system Ideal AFR monitoring tool for carbureted applications and engine dynamometers Does not oscillate AFR like narrow band sensors Serial data stream included for output of AFR (RS 232) Accurate to 0.1 AFR Now supported by PCMSCAN software!
Very good price, best I could get was about $250 delivered. Love mine, easy to use and interface with Nistune too.