Twist a sensor onto each tire’s valve stem, snug down the anti-theft nut with the little wrench, and set the display on the dashboard where the sun can reach it. That’s the whole installation.
From then on, the screen shows the pressure and temperature of all four tires as you drive, in PSI and °F, with no wires running between the sensors and the display. If a tire starts losing air, runs low, overinflates or gets too hot, an alarm sounds, so a slow leak gets caught in the driveway instead of on the shoulder of the highway.
The display recharges from its own solar panel, and an auto-sleep feature stretches its battery; on a run of cloudy days, it also charges by USB. Each sensor is labeled for its wheel, so nothing gets mixed up after a tire rotation. Keep an eye on every tire without kneeling beside a single one.
