Description: Large LCD display Zero setting at any position Metric/Inch system interchange Manual power on/off Suitable for tread depth & brake shoe and pad wear Specification: Range: 0-25.4mm/ 0-1" Resolution: 0.01mm/ .0005" Material: Plastic Working Temp: 0-40 °C Battery: SR44 / LR44, 1.5 V(not included) Overall Length(Lx W): Approx. 88x 35mm/ 3.46x 1.38inch Test Prod Length: Approx. 26mm/ 1.02inch Color: Black Instruction Manual: 1. Insert battery in, "+" pole upward 2. Switch ON 3. Put base on flat surface and press bar downward 4. Set ZERO 5. Put gauge on tire, hold stable and press bar tip into tyre profile 6. Read profile depth value directly 7. Switch OFF or continue Package Includes: 1 Piece Digital Tire Tread Depth Gauge(No Battery) Note: This package of digital tire tread depth gauge not includes battery, and please keep the gauge clear and without water and oil on the bar. Remove battery when not used for long periods. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement