This is a wireless solar-powered TPMS – a tire pressure monitoring system that comes with four external sensors.
It's a great way to keep an eye on your tire pressures without having to check them manually every time you drive.

The sensors screw onto your valve stems (external type), so installation is super easy – no need to break the bead or visit a tire shop.
They transmit pressure and temperature data wirelessly to the LCD screen, which shows you real-time readings for all four tires at a glance.
It's a universal fit, so it works on most cars, SUVs, and light trucks.

The material is ABS+PC, so it's lightweight and durable, and the display is clear and easy to read.
It's an unbranded unit, but it gets the job done – and it comes with a 1-month warranty, so you can test it out without worry.
If you've ever had a slow leak or a blowout, you know how valuable having real-time pressure info can be.