❤ Step 1: Press the power button to turn on the machine and check whether the display is normal.
❤ Step 2: The allowance for the measurement surface is on a flat surface, push the measuring rod to the end, press Zero to return to "0.00"
❤ Step 3: The measurement surface is vertically close to the tire surface. Insert the measurement rod into the bottom of the groove to display the measurement value.

❤ Note: It is recommended to measure several times in different areas of the same tire and take the average value, the result is more accurate.

Tire pattern depth ruler:


Tire wear limit value ≤1.6mm

Recommended replacement

Summer tire driving wear ≤3mm

Recommended replacement

Winter tire driving wear ≤ 4mm

Recommended replacement

Tip : Battery not inlcuded