Customer Ratings & Reviews

Pros: slow leak detection with time graphs. Easy installation. Pretty accurate. Amazing warranty and customer service should you need it. Cons: caps are thin and fragile, (but the devices themselves are solid. ) Automatic car washes with tire/wheel cleaners will eventually damage these so be warned. Locking feature while nice, makes removal for normal top ups a pain. Labeling for each wheel could be better. Overall, I’ve had them in my car about 6 months. First set got damaged from automatic car washes, but the company was awesome and sent out a new set as soon as I told them. My car is pretty new (2014) but doesn’t have built in tire pressure sensors so this is a convenient way for me to keep an eye on trends with weather changes and not have to check each tire on a regular basis.

If you drive a older model vehicle without any tire sensors I highly recommend you looking into acquiring a tire sensor kit. Got these set of STMS for my older model car Toyota Previa 1995 which does not have any tire sensor feature like modern cars giving early warning when there is problem. My Reasoning for investing: 1. Keeping safe 2. protecting your tires from blowing out. 3. detect slow leak before it ruin your tire and become a safety concern Nonda ZUS® Smart Tire Safety Monitor basically does all the mention above for you. The process is easy to install. It comes with security feature so it doesn't get stolen. Nonda zus app provide all 4 tire psi information on the app it also shows the temperature of each tire in real time. Honesty can't put a price on safety.

I have an older car that reports low tire pressure but it was difficult to figure out which tire specifically had the problem. I can now track over time the pressure of each tire. I can also see the temperature which I'm sure had some usefulness but I've not figured out what just yet. Installation was fairly simply although one of my tires was a little tricky. It comes with a nut and a wrench that helps you lock the tire pressure monitor in place and prevent them from being stolen. I also liked that the hub you need is powered by the cigarette lighter via usb and that it has a pass through so you can continue to charge your phone. The product also allows you to track where it was parked but you must give the application permission to use your location even when not using the app which I've never been a fan of. When disabled, each time you return to the tire pressure monitoring home screen, it reminds you of this which can get annoying.

***My first review didn't validate my purchase*** (This is one of the best products I have used, so I wanted people to know I actually own this and am not just a robot putting out reviews.) I am ordering my second unit as the first was so helpful. We had a slow leak in one of my wife's tires, and I absolutely hated just knowing a tire is low. I wanted to know which one was actually low. Not only that, I wanted to know how low. If I'm driving down the road, I need to know if I have to pull over immediately, or can I make it to a gas station and just put in air. It really makes me feel better with my kids in the car that I can tell my wife to come on home and I'll fix the issue, or pull over and I'll be there soon.

Great product and easy to use. Always very accurate and very helpful.

The functionality of the TPMS is exactly as expected. Saves me so much time rather than manually checking individual tire pressures. The ability to set HIGH & LOW limits as well as tracking HISTORY is fantastic.

Nice App and good real time monitoring. Liked that its hooked to USB port for power.

I did have a number of issues with this device. When you write to customer service you will get robot answers and (people?) who didn't read what you wrote. Takes forever to get a workable answer and by then I'd usually taken the problem to a tech friend. It is a great tool to have for tires that don't show a flat until it's too late. Saved me once. However after the warrantee was over the receiver quit working. They will sell you replacement sensors but not a replacement receiver. BYE BYE Nonda. There's better companies out there.

3 of 4 sensors had dead batteries, the 4th died after a day. Two weeks later I'm still fighting with Nonda customer service on reimbursing me for the batteries. Also, the registered tire pressure on their app does not match (within 2 psi) of the pressure I have measured with two independent manual tire pressure gauges. When I inquired with support on how to calibrate the sensors to a known, accurate pressure reading, all they did was send me the standard help text about re-positioning the receiver. It really is a nice product, but be prepared for sub-par service and support if you ever need it.

So, I was having all sorts of problems with my tires. The low pressure light kept going on but I wasn't able to isolate which tire as the problem Now I can see both pressure and temp for each tire and see if there is a leak, slow or big. I had one tire fixed and the other had a dirty seal that has since been cleaned. I'm back in business and enjoy having a little bit of knowledge that I was otherwise couldn't get.

It didn’t work on my husband’s 1995 Suburban but it does work in his 2004 Grand Marquis. Wonderful safety enhancement.

I purchased the Smart Tire Safety Monitor as an alternative to in tire TPMS sensors. This allows me to keep track of my tires pressure, and temperature. The only downside to this, is that your phone (at least for iPhone) doesn't connect automatically when you get into the car.

i love it so much keep check my tire pressure when

The divice it self is nice by fivinf you the accurate pressure but its very cheap made and the body of the cap crack already.

So far so good. I like that it gives me the tire pressure of each tire. Even though I have a tire warning system in my vehicle it didn't give me the pressure of the tires.

My needed this now I can tell what my tires pressure is without having to check it with a pressure stick.

Never low on air after purchase this product awesome product

These tire sensors are great! They work as described and let me know about my tires.

This device was okay but didn’t have enough range for my rv

Its ok cool toy but finicky. Always needs battrries