Portable Air/Fuel gauge?

I use this system for my tuning. I use a trailer hitch 4 wire connector to plug it in when I am using it. When the provided sensor is not in, i just plug the hole with an old o2 sensor.

Works great, price is right.

http://www.glowshiftdirect.com/Elite-Series-Wideband-Air-Fuel-Gauge.aspx

Thanks for the link ken5124. I called them and liked what they had to offer but decided to order a FAST 170634 from JEGS instead. I really wanted to get one shipped to me by this weekend and it seemed to be the most economical way to get one in time. Unfortunately JEGS does not carry the GLOWSHIFT setup. ATLANTICSPEED.COM advertized it cheaper (the FAST unit) but couldn't get it to me 'til next week. - But JEGS price matched them so I should have it here in 2 days. I may be asking you for more advice once I get it set up.