WB D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge (RED)

Its awsome it works great does the job great product easy to install

seems to work well..gauge is very cheap and cant be used on anything other than your interior. so if you have a jeep or 4 wheeler you cant use it...good sensor and bung as well as a good harness.

I received this item and it was completely nothing like the description.. It literally looked like something out of a Tonka toy... The fave of it was literally cardboard and casing was light plastic.. It also didn't come with any bessles and glass fronts or anything it said was included.. This thing shouldn't be more then 50 bucks... I sent it back immediately

Products are great very accurate and customer service was excellent to say the least would recommend to race enthusiasts everywhere.

works perfect. Highly recommended.

very good product

Made very cheap. The wiring harness is very short. My plug connect for the oxygen sensor came in damaged. And also the gauge goes in and out. Will be contacting seller to get a new one.

Works great. Couple things I wanted to pass on to try to save time. The instructions are a little vague. You have to leave the sensor out of the exhaust the first time to calibrate it. Hold the button in the back until A6 comes up, let go and it will start to calibrate. After it goes to 19, its done. Put the sensor in. To set the fuel type, hold button until A1 comes on, let go. Then it will display 1through 6. 3 is gas, click once when 3 is displayed. That's all I did and everything works great!