Review on Invtek TPMS Wireless Tire Pressure Monitoring System with 4 External Sensors, 5 Alarm Modes, Real-time Pressure and Temperature Display, Bluetooth 5.0 Supported for Android and iOS by Major Callaham

The gauge itself appears accurate but everything else is basic. Poorly. I bought these to be able to access the information on my phone's screen and not my current TPMs plugged into a 12v outlet. Here's my experience: 1. One of the sensors was dead on arrival (rear left, in case that matters) 2 . They seem really poorly designed compared to my existing sensors. The plastic feels brittle, with many sharp and rough edges.3. The application does the bare minimum and sucks in any error handling. Two of my tires suddenly hit 1,500°F, which I'm pretty sure is the melting point of most alloy wheels. The worst thing is that there is no option to disable notifications. They simply send a new notification every second. The only way out was to close the application and ignore it. I stopped the car to double check and the sensor felt rough (it was about -4C outside). Basically, many quality control issues and bad UX in the app are killing this product.