I used a previous version of this meter. This has worked well for me for several years. Its compact size makes it easy to store in your glove box. Our RV needs to be able to read higher pressures. Many other sensors just don't have enough capacity for use with RV tires. I bought this newer version to replace a previous unit after thinking I had lost the rubber washer in the stem rendering the sensor unusable. But after ordering a replacement I found a socket, so now I have two working sensors. I plan on keeping both, one for our car and one for our RV.