nonda ZUS AccurateTemp Smart Tire Safety Monitor, TPMS with APP, Slow Leak Detection, Real Time Pressure & Temperature Alerts, Tire Pressure Monitoring System with 4 Upgraded External Cap Sensors

Amazing device. I would not recommend using the app while driving... let a friend drive, and watch how the tires respond to what you're doing. No big deal perhaps if you've got a modern car, mine is much older, and probably been running at the wrong pressure, like, forever. Three were too high, and one was 1/2 low, it was pulling, I should have known, but, I'd never guessed the degree it was off. Now I can watch the temperatures, as well, and one can definitely see that relationship to pressure, and again, to what you're doing. Their app has two other devices, neither of which I'd be interested in... EXCEPT for the fact that this works so VERY well... the other pieces almost become a must have. Oh, must have duplicate sets for other cars in the family. Excellent gift! Too bad they don't work for a motor-home. Once you see how well they work for what they were designed for, a car, you won't want to drive without them.Edit: 2 years after purchase and these are on a second car. Batteries lasted a year the first time, two months the second, and 10 months on the third set. I'm on here ordering batteries, and actually, only one is dead... three of the four installed 10 months ago still working. Most of my comments above stand. I love seeing the relationships maintained at different temperatures... both ambient and from running on the road. Fascinating to watch.The app is a pain in the tail, the other "must have" apps aren't really necessary, and the app opens on the wrong screen seemingly intentionally. They'd like to sell you more, but they're not good at doing it.Edit: 3 1/2 years after purchase. Still on the second car. Still working just fine. The left front battery has gone out now, twice in three months, but replace it and it still works, so perhaps I got a batch of weak batteries.Their program has evolved to meet their other sales objectives. They want to know your location all the time, and I don't want them to know it at all. The reset button does nothing apparently because they require you to be logged on to use the device, and they simply reload the previous values from your account when you reset it. It remains very hard to get the initial values properly set... i.e., all to the specified values. I used 30 lbs for the front and 34 for the rear. This corresponds to gauge settings of 28 and 32, but the values displayed on the screen always end in .4 and .9, so it's not perfect. I seem to be 1/2 lbs off on a couple of the values no matter what I do. Luck I guess.I am in southern California where the weather is pretty good all the time, so I've had none of the problems that cause the devices to get frozen to my valve stem. At any rate, still loving it.

I liked the technical ability of the product, great GUI for iphone and ipad, but the sensors cannot withstand the road environment. The sensors are poorly constructed and questionably sealed. Within a week of successful operation, the first pressure sensor died, giving a reading of 0.0 (even though the temperature was reading fine). After that, the sensors continued to sequentially malfunction one after another. Emails with Nonda were of little help as they kept asking me to "swap with another tire" or "replace the battery" even after me telling them the temperature transducers were fine - the pressure transducers were sequentially failing because the units were not built robust enough for road environments. I finally gave up, admitted my mistake of purchasing a product that was a mistake to buy. I do not recommend this product as you will most likely have an experience similar to mine. The manufacturer needs to go back to the drawing board and design a more robust model. I finally settled with simple indicator caps for 48 PSI truck tire pressure.

As my title states this is a disappointing TPMS system for cold weather climates. Users that have given this negative marks are just in their feelings as I was too. Nonda has at least tied to remedy the issues with non-corrosive sensors; however, this solution does NOT resolve the issue as on extreme cold-weather conditions this product fails. I have gotten around this a bit by treating my valve stems as well as the threading in the tire sensors with "special" lubrication. You can find this product for rust-proofing and corrosion in other hardware stores. AGAIN, you MUST TREAT the threads of both the valve stems and sensors at LEAST three times a month IF YOU ARE IN COLD-WEATHER CLIMATES! This prevents the MAIN issue that I and many others had suffered from this product. It's understandable as with ANY electronic product being introduces to extreme cold weather. I still have not found a more intuitive TPMS that alerts you when your tires have a slow leak as effectively as this one. I will say that If you have newer car models (i.e. 2019 Honda Pilot [Touring or Elite], 2020 Honda Accord, 2020 Toyota Camry, etc) you WILL NEVER NEEDS THIS UNLESS you wish to have SLOW LEAK DETECTION. I honestly, cannot wait till the rest of the automotive industry keeps up with Audi and BMW technology as they have this covered too. This is my second set of Nonda AccurateTemp TPMS w/ Corrosion-Proof Sensors. I did have to have my dealership use a "special" compound to remove the sensor AGAIN; however, I did neglect to put the required lubrication on before I applied the sensor. What i DO BELIEVE is that Nonda should warn cold-weather users to use a solution before applying their product. As a matter of fact they should INCLUDE specific compound of lubrication with this product as well as offer it as a Amazon consumable (sorry I don't remember what you call their auto-order products). This way we wouldn't se a negative review. Nonda please correct this as you have people that honestly like your products.

Great product. Easy to install and so far it works perfectly.My only frustration is with the app.From the time I get to the car and turn on the ignition; the app keeps on calibrating until I drive for few minutes.I think this is wrong!! I will need to know the pressure of my tires before I drive, so if I know I have a leakage or a slightly flatter tires (something that I cannot see easily with a 20Inch Rim) i can fix that issue before getting out of my garage...I would have given it 5 stars if not of that App illogical calibrating process.

Und kein Powerwechselrichter wie in der Beschreibung steht (zum Glück).Batterien waren leer - wohl lange auf Lager gelegen, nach Wechsel funktioniert es mit der Nonda App wie erwartet.

to monitor what the tires are doing

Very nicely made and works well. Only criticism all the 4 battery's were dead had to get new one's only realised after trying to set it up for 45mins

Las lecturas son imprecisas al momento de instalarlo. La app trata de venderte otra app constantemente . Aún y cuando lo dejes instalado por unos 10 km, no funciona, las lecturas son incorrectas en las 4 llantas. Desafortunadamente, apenas pasó mi ventana de devolución del producto. Lo pedí con mucha anticipación. No volvería a comprar nada de esta marca. Si no fuera tan caro, sería una broma. Pero de hecho es peligroso., puedes reventar una llanta y tener un accidente Mi consejo:1 compra un medidor análogo de esos tipo pluma y checa las llantas cada vez que cargues gasolina

Buono ma su alcuni dispositivi Android, tipo il mio stereo in macchina con sistema Android, non ci sta in applicazione compatibile.