New Car Tire Pressure Monitor Valve Cap w/Sensor Indicator 3 Color Eye Alert 4Pcs

I have a Schwin Tornado Cruiser that has been motorized, and I decided to pick these valve stem caps up as replacements for the gaudy decorative ones that were on it before. I figured that these not only looked a bit nicer, but they actually served a useful function. These little gauge are really awesome! After only a week or so with them I noticed that my rear tire was leaking slowly, so every couple of days I had to add air to the tire. I was able to fix the leak and repair the tire without it causing me any issues while on the road, which can be dangerous for anyone, but especially for me in a bike that can top off near 35mph. A flat rear tire could have caused me great personal injury, and I am glad that these indicators helped avoid that mess entirely.

We have these on our car and our daughter was visiting and saw them. I found them on your web site and ordered them for her. She is waiting until she gets her new tires on her car to install them. We love ours, I am sure she will love hers too. Everyone needs these if their car does not tell them their tire pressure. Just a glance and you know if you need to pull out the compressor. Get them while you can.

So convenient! They work great and I love that I don't have to check my tire pressure all the time now! These little caps let me know when I am low on air and when my tires are full.

excellent visual....just as I expected. Updated review...about a week after install. I came out to work and had a flat tire. Found out after airing it up it did it again. ..tire shop said it was a faulty end cap...so I went back to the non visual black end caps. These visual ones, how they work, is that they push in the valve stem constantly and thus showing you how much air you have...if they go bad, like one of the 4 I had, they deflate your tire...something you're trying to avoid and be ahead of....would havery to be 2 stars for my review...cool idea though.

Seem to work well but they stick out a bit further than I'd like and may get damaged in a car wash or driving. If cap cracks it may start letting air out???

Easy to put on and easy read. I have a tire that has a slow leak so hopefully I don’t have to guess which tire it is anymore

I bought these initially after getting fed up with my tire pressure sensor always going off telling me time I need more air. This is perfect, right? You get these, throw 'em on and BAM! If your car tells you the air is low - perfect! You know EXACTLY which tire it is! This worked well for the first month or two and I had none of the issues others reported with leaking or anything like that. Now for the fun! After a few months with these on (again they didn't really give me any trouble and they did what they advertised). It was time to add some air and suddenly I couldn't pull off the valve cap on two wheels.... At first I thought, eh just give it some elbow grease and that oughta do it! Not the case, and unfortunately, I took it over to get my oil changed at the local shop and thought I could sneak getting them to remove them while checking tire pressure. No go there as well. At that point the manager told me "oh yeah this happens all of the time, people get metal valve caps and they expand and contract at a different rate causing the caps to fuse to the stem". In case you're seeing this on your end - look up on google 'fused tire valve cap'. Anyway, that gentleman told me it'd cost probably $150 per tire because the sensor, stem and entire tire would need to get pulled off. Fortunately...I shopped around and found a local tire shop that told me they may be able to do it super cheap and even if it was higher end...they'd be under what that person told me (< $110 per tire WORST case). Well took it there, they managed to remove these and I now have a shortened valve stem, set me back only $11. Not ideal but I'll just put it his way... IF YOU HAVE METAL VALVE STEMS ON YOUR TIRES, DO NOT USE VALVE CAPS THAT ARE METAL (and these are metal). Otherwise this works out fine, but wish I'd never installed them.

Very weird but they definitely come in handy. I do not know much about cars and when i first put these on i though they did not fit. My father then tried and even though they stuck out a lot more than usual they still were on. I have had these on my tires for 2 weeks now and no air has slowly leaked out of my tires. They are really easy to read. All you have to do is walk around your car to make sure they are all green. If they are yellow then that shows a warning that you should fill up your tire. If it is red than that means you better fill it up or you are not going anywhere. Hope this was helpful.

Works well. They do stick out farther than a standard cap, bur makes sense with the functionality. Would buy again.

good product works as required

No problems, shipped quickly. Fit as described. Now I can keep an eye on that one tire that leaks out until I buy new summer tires in the spring.

Doesn't really work and then fuses to your nipple

Edit; So I purchased these back in May of 2019 and originally I thought they would have been a decent replacement to my cars failing TPMS however they have become a source of issues for me. The biggest issue I’ve had with these is that they leak air whether from the valve stem connection or from the transparent plastic cap (where the color indicators are visible) it got to the point where I would fill up my tyre one day and literally 12 hours later the tyre was flat!! Before I planned on purchasing new rims (thinking it was my old rims) and losing a whole bunch of money, I changed the valve stem caps for the standard ones and lord and behold, NO more flat tyres!! I’ve had these valve stem caps for just under 4 years but all in all, they may end up causing you more problems than they are worth and I would refrain from purchasing them unless you have no other choice! I bought these a couple of years ago to help monitor my tyre pressure as my vehicle has a TPMS but it does not indicate where the low tyre pressure is and these little valve stem caps are great when it comes to showing where a potential problem might be. The only and I mean only issue I have is that the plastic caps become stuck during the winter months and as far as I know they cannot be lubricated. All in all an okay product for the money.