Overall, we found the SAFELIFE Digital Tire Tread Depth Gauge to be a reliable and accurate tool for measuring tire tread depth. It’s easy to use, easy to read, and easy to carry with you ...

The penny test (shown below) is the easy way to check a tire tread's depth when you don't have a depth gauge. If you place a ...

[John] found that a digital tire tread depth gauge can work well for this application. Many of these gauges use the same electronics as the cheap digital calipers, for which the serial protocol ...

Yokohama Rubber has begun practical testing of a technology that gauges air pressure from the sound made by tapping on a tire. The company announced that it has developed an experimental pressure ...