I got tired of trying to figure out if the PSI gauge on the motorcycle dash was correct... gauge number 1 was correct... or gauge number 2 was correct. So I broke down and bought MotionPro. I have no doubt that this sensor is there! Plus, it's extremely easy to use and attach to the valve stem without releasing 5 pounds of pressure with each connection. Looking back, I wish I had just bought this sensor for the first time. Oh, and in case you're wondering, my BMW motorcycle tire pressure sensor is off by about 4 pounds.