Tire pressure seems to work fine. I have two problems. The temperature is only measured in Celsius, nowhere in the USA is there such a standard. All other tpms applications have ferhenheight. But apparently only their app reads these sensors, everyone else has a 5 digit code, not 6. I will NOT be buying again. I will buy another brand for my other bike and RV. Not satisfied., also they only work once. You must then remove them before a new ride for them to reset, otherwise the temperature and pressure will only show as it was during your last ride. If you rely on them for security, do it. NO . BUY THEM. COMPLETE GARBAGE. I want to do that, next time I'll just use a pressure gauge. I expected more from Amazon too. The product is crap.