ANKI HAPPIGO 8Pcs 2.2Bar 32-to-35 PSI Car Tire Pressure Monitor Valve Stem Caps Sensor Indicator Easy to Read 3 Color Eye Alert

It’s a great product. Only gripe I can say is it’s a little bit too long so you need to be careful not to hit the road curb.

Thinking about these tire pressure valve stim caps, I get a sense of comfort being able to get a quick and easy way to see that my tire pressure is correct each time I get in my car. They're easy to put on and easy to read. Nice product that I'd recommend to use.

These were easy to install (just screw them on the valve stem). Ask me in a few months about the quality of construction (they’re only less than 10 bucks for four). …would be nice if they were marked with what pressure they “alert” (the packages wording) for.

Absolutely a must have!! This works great!

I ordered these valve caps when I realized that one of the basic ones on my tires was missing. I certainly wish that I had not wasted my time and money. So many problems with these.First, they did not perform the pressure-indication function at all. Even when a tire was markedly low, they would remain completely green. I ordered the 32 psi version, which matches my vehicle. Simply DOES NOT WORK.Second, they not pleasant to use. They are nowhere near as easy to grip or turn as a standard valve cap. I found that I had to line them up very carefully to even get them to go on.Third, and MOST IMPORTANT, they seized on my valve stems after only a couple of months. I could not get 3 of the 4 caps off, starting about a week or two ago. It was cold and all of my tires were low, one very much so. I went to the oil change place, and they could not do anything more than I could. They would not touch them because they said they have ruined tires that way.While perhaps I should have known that metal valve caps were a bad idea and could cause issues, I just figured that people wouldn't sell products that really aren't fit for the purpose they are sold for. After having this experience, and having since found many You Tube videos on the subject, it seems to me like there is no reason for this product to exist. Save yourself the hassle of a trip to the mechanic and just get the cheap rubber caps.... There's a reason those are what almost everyone uses.

Products were as advertised.

Packaging for items was not marked as to which of multiple pressure ranges the items were made for. Seller should mark the block on the package that accurately describes the pressure range choice they are intended for.

Love them. It's great to know that my tire is inflated without having to check them all the time. The set came with 8 so I gave 4 to a buddy to use on their car.