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

These little valve caps are a fantastic solution for one of the most annoying 'features' of cars from a certain era: the TPMS light that tells you a tire is low but not which one. Trying these out on my older vehicle has completely eliminated the guesswork. Now, instead of having to check all four tires with a gauge every time the temperature drops and the light comes on, I can just take a quick glance. The simple color-coded system is foolproof; if it's green, you're good to go. It’s a huge time-saver and provides incredible peace of mind, especially for family members who may not be as diligent about checking their tire pressure. I was so impressed that I've found uses for them on more than just my car. They work perfectly on my bicycle tires and are a game-changer for my trailer, where low pressure can be notoriously hard to spot by eye. The real value of these caps was proven recently when one alerted me to a slow leak from a screw I had run over. I caught the issue immediately, long before it could have become a flat or damaged the rim. It’s a simple concept, but it works exactly as described. Receiving a pack of eight gives you enough for two vehicles or plenty of spares, making this an excellent and practical addition to any car, bike, or trailer.

These are such a time saver. Just replace regular caps on tires with these (make sure you get correct tire pressure) and then just take a stroll around your vehicle and look for the green! Easy peasy!

these feel higher quality than the usual (and the way it displays yellow, then red ... is a much more elegant design than the rest!)

Love it

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.

Works exactly as promised! One less worry when it comes to your car. Got these for my kids car and my own. Easy to put on, easy to see the colors.

At first I thought these were the coolest valve caps I’ve ever seen. I bought them for 4 vehicles and they really do work to give you a quick visual of a tire that might need air. (We have older vehicles that don’t tell us these things). Anyway, all was well until my tire went flat. I filled it up and then I heard air leaking out rapidly. I drove it straight to the tire repair place who beaded around the rim and said it should be fine. I got back to work and heard air leaking again. I was frustrated and for two days (until my friend who’s a mechanic could look at it) I had to air up my tire before going anywhere. It would lose 15-20 psi in less than two hours. It was finally discovered that it was the valve cap causing the leak. Put it on, air leaks out. Take it off, everything is fine. I didn’t hear the difference because the air compressor was always running when I screwed the cap back on. Obviously being plastic it got a crack or something. I decided it’s time to go back to aluminum caps that don’t have the cool gauges on them. I really wish they would’ve worked out.

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