Features: 1.Function: Designed to measure the tread of different automobile tires, and it is also suitable for the wear measurement of brake shoes and brake pads. 2.Easy Reading: Digital LED large screen, the measurement range is 0?25.4mm, and the profile depth value can be directly read. 3.Zero Key: The tire gauge can be reset to zero at any position, making it easier to adjust. Supports inch to millimeter conversion. 4.Recommended Replacement: Tire wear limit 1.6mm, high speed driving wear 3mm, rain and snow weather driving wear 4mm. 5.Pre Installed Battery: Smart chip, automatically power off when the gauge is not in use; no need to worry about running out of power. Specification: Item Type: Tire Tread Depth Gauge Material: ABS Range: Approx. 0-25.4mm/0-1in Battery Type: 1 x Coin Cell Battery (Included) Battery Model: LR44 Battery Capacity: 150MAH Fitment: Universal