I bought this when I needed a different sensor for my child's car. It's much better than the previous one I bought. I didn't realize the importance of a backlit display. Others I've bought didn't, and I didn't realize I couldn't see the display in a dark garage, especially when the devices don't have short-term memory. This gauge appears to be consistent and accurate. Unfortunately I don't have one as my daughter has the car. (I didn't know that some cars TP warning system doesn't read actual air pressure but uses tire RPM. Also you need to calibrate the system by first setting the correct air pressure and then commanding the system to calibrate it. Without the correct ones air pressure, a warning is not correct.)