Tire Pressure Monitoring Valve Caps Sensor Gauge - Advanced Detection System, 38 PSI Sensing Air Alert Indicator for Cars, Trailers, Bikes - Chrome-Plated, Pack of 4

Excellent product which makes it easy to see the correct tire pressure.

I got these on my 25 Cougar. No issues or complaints. You can really see the green indicator from an appreciable distance and they do not leak. I’ve got 2 months on my installation and haven’t lost the slightest pressure. They seem very durable and well made. Look nice too. A bit pricey but with a caveat, it’s a better price as compared to a TPMS.

I now can check my tire pressure with a look awesome and easy to know if I have to drag out the air compressor. simple install will save me from buying tires due to low pressure issues.. great product that fit right. quailty and value all in one.

The caps work great but with one BIG problem. When you take them off to put air in the tire, you have to be really careful that the little black o-ring stays in the cap and is not stuck to the valve stem. If it is stuck to the valve stem you need to peel it off the valve stem and put it back in the cap. Because if you lose that teeny, tiny o-ring, the valve cap is worthless and you can't buy any new little o-rings, you have to buy a whole new pack of 4 caps! This has happened to me several times. The last time at the tire dealership who let me with 2 flat tires within an hour because they didn't know about the little o-rings that stick to the valve stems. So now I'm buying my third set of 4 caps but fortunately, this time the tire store is paying for them. I've emailed the company three times now over several months asking them how I can buy the o-rings or just tell me what size they are and I'll buy them someplace else. I wouldn't say the customer support is terrible, I'd say it is NON-EXISTENT! Not once did they respond in any way to my emails. So the caps are good, but the o-ring and the company are bad.

We do really appreciate the purpose of this product, and we got the 85 PSI ones for our rollback. One of the four was kinda faulty (we bought two kits so we just swapped it) and one of our 6 tires has a faulty stem so we don't have all 6 tires capped. I will say the ones we do have capped (5), these tiny things have saved us a lot of time and hassle. The caps give a nice transition from solid Green (above 90) slowly becomes Red to let you know as the pressure starts to drop below 85, thus under 85 its solid red. Normally we have around 90-100 psi for our truck tires, so if it is below 85 its dangerous for us. Thankfully we have these caps to quickly gauge if we need to check the pressure. I say don't depend on them 100% of the time because for a while we couldn't figure out if we had a leak in the tire or if the cap was bad. Turns out it was both - but thanks to the faulty cap we even noticed the leak. TL;DR: Great for at a glance, but always double check the reading and ensure the cap is reading accurately.

Great quality. Have had over a year now and very satisfied. I would buy again. With that said they are pricey. But these are a real step up from the China junk out there.

I have been using these pressure monitors on my car for over 3 months now, and I am amazed at how well they work! As these are rated for 40 psi, I keep the tires inflated to 43 psi and now I can check pressure on each tire simply by looking for a green indicator. Excellent. Few things I noted... After hand tightening a monitor to the valve stem of each tire, you really must drive your vehicle for like 10 miles first in order to "prime" them before you'll get an accurate reading. So, keep this in mind should you ever need to remove the monitors for any reason, like when it's time to change your tires. After a monitor has been showing all green for a while, if ever it begins to show just a little red, then that is an indication to check the tire's pressure immediately using a good quality pressure gauge. To save the most gas (in this case by reducing friction with the road) you'll want to inflate most tires as close as possible to "max press" (maximum pressure) rating stamped on the sidewall. I had a buddy in college who was a real cheapo and always kept his tires inflated to max press with nothing bad happening. But that still makes me nervous, so I try to stay 5 psi under the maximum rated pressure. Chris

Work great

Gadget man husband likes them

Frágiles. Se rompen fácil. Y al dañarse tienen fuga de aire. Haciendo que se desinfle la llanta totalmente

I ordered two sets; one of 32 PSI, the other for 30 PSI. THREE of the four for each set worked as advertised. One each, showed green/red. I contacted the Mfg. and he is sending me replacements, but....... We have a postal strike, so I gotta wait for them . Later, I have them and they do work.

I ordered the 95 psi caps , the number 40 is stamped on the cap which is a little confusing. They are set to 95 though as I tested them.

Me mandaron producto equivocado, pedí de 38 psi y me mandaron de 100 psi