Someone blew air out of my tire. Be careful and check after installation. The one 65psi I had on the big trailer tire took my tire to 45psi in 12 hours which was checked with a great gauge. I then switched the monitor to a different tire after inflating the original tire again and the other tire blew out. Other monitor caps that I have installed on two other machines work fine. I didn't hear any air coming out. The wheel is big and a lot of air comes out. The good news is that the indicator was red, so I knew I had a problem. After research, I believe this is the best option. I even tightened it 1/4 turn very carefully with the 1/2" tool to avoid applying too much force with the tool after hand tightening.