VAOYAO Tire Pressure Monitoring System TPMS, Solar Power Universal Wireless Car Alarm System with 4 External Sensors, LCD Real-time Display 4 Tires' Pressure & Temperature Alerts Ensure Safe Driving

Over the years I've had to replace many tyres with uneven wear caused by my neglect of inflation pressure. I saw this sort of thing built in on a brand new car and thought thats what I need. Its simple to use.. Charge on the usb, just once, and the little solar panel then tops up. Add the sensors to the values. Press a few button, as per instructions. Job done. However, after about 3 months, I did have one sensor go faulty, but after 2 or 3 short messages to VAOYAO, they sent me a new replacement unit that arrived in a couple of days. So good product and good supplier.

Es importante tener en todo momento la seguridad en la orden de las llantas y lo cumple claramente. No son los mejores materiales, pero suficientes en calidad de acuerdo al precio.

The tire pressure gauge worked fine, however I did find that the Front Left (LF) tire reading showed up on the Right Front (RF) tire gauge screen area. The fix was easy. I just took off the cap of the RF and LF senders (as if I was changing battery ) and swapped them. The rear senders worked perfectly. The screen is bright and found it easy to see even in sunlight. I charged the unit before using and battery showed full 3 bars. Haven’t had it long enough to determine how well the solar charge works. Happy so far. Update: it has now been 2 1/2 weeks of usage and the guages still work perfectly. Two days ago I got a flat and the guage displayed 10 psi for that tire. The previous reviewer indicated that the instructions were too tiny to read and understand. The reviewer is correct but if you magnify the instructions using a smart phone or enlarger you can overcome the tiny manual. The instructions to change temperature measure and psi measure are a little complicated but I was able to convert centigrade to Fahrenheit and pressure to psi. I also changed the range of the low and high pressure alarms. It took a few attempts but I got it done.

Easy install, was excited because LCD screen worked perfectly and showed temperature on each wheel and the solar panel worked great. Followed instructions to no avail.

If you take a close look you will find a number of TPMSs for sale. On close examination it appears that hardware wise they are all identical and are probably made by one manufacturer. The firmware, the software that defines how they opearate and what the user interface and menus look like seems to be a completely different matter. Each vendor appears to have their own version, some are OK and some are awful. I wasn't impressed with the user interface for the VAOYAO device but its main problem was that none of the four pressure sensors would pair with the display unit. I thought at first that perhaps the sensors had been mislabled (The are marked FL, FR etc for front left and front right) and that I was inadvertantly trying to pair a sensor that I was not actually fitting to the tyre valve, after careful checking it turned out that that wasn't the case. Before I returned the device to Amazon for a refund I did email VAOYAO hoping for some advice about pairing (I have had a couple of similar units in the past that lasted for several years each. I got a reply from China but they didn't seem to have much idea about what might be going on.