4pcs Tire Pressure Monitor Valve Stem Caps, Universal 32PSI Car Tire Pressure Monitor Valve Stem Caps Sensor Indicator, 3 Colors Alarm Tire Indicator

I went out today and one of my brand new tires were flat.... then I noticed that one of these caps came apart and allowed air to escape. It appears just the fact that the viewing window is under pressure, it blew it off, allowing the tire to deflate. I was lucky it happened in my driveway!! How dangerous is this?!

Bought last year. Everything was going OK, then one day i walked out and my tire was almost flat and the sensor was still in the green, tire had 6 lbs of air in it. Another broke off in the snow, which resulted in an instant flat. I tested them all on a low tire and none of them worked properly. I would not buy them again. Maybe a more expensive set might work, but I have decided the convenience of knowing my tire pressure at a glance was not worth the problems in the end.

Great product let you know if your tires are holding air. And accurate if your tires and good it'll be red or yellow if you're tired is holding air it'll be green I tested it so I know it's accurate but a good product great buy

They did not work for me was very disappointed. They just always showed all three colors when I made sure all my tires had enough air in them.

It works great!

Want to know right away if your car tires need some air? Then you should get these contraptions/gadgets and install them on you car tires. They are very well built, and add a little extra to you car’s looks.

I thought these would be helpful but it was a disaster. The valve broke and cause all the air to leak out of my tire. Than I had to drive to a repair shop and buy a new tire. Worst product- do not buy

I like these but after my mechanic told me not to install them because if the tip of it breaks you'll get an instant flat tire. Because it's plastic or glass and there's nothing to keep the air from rushing out

Préviens l’usure des pneus

Not great quality

Nous n’avons pas toujours besoin d’un truc électronique pour que l’utilité d’un objet soit efficace. Ces bouchons le prouvent.

Product fits and looks great.