Features Stainless Steel The caliper ruler body is made of stainless steel, not easy to deform after high temperature quenching, more accurate measurement. Durable Scale The caliper uses a magnetic strip lamination scale process, which is not easy to wear out, beautiful and durable, and has high accuracy. 3 MEASUREMENT METHODS Users can switch between metric, imperial or broken measurement methods with one button and automatically convert the measurement length. Clear Display The large digital display on the caliper is clear and durable, and the large LCD display shows clearly. REPLACEMENT BATTERY The caliper not only comes with its own battery, but also with a spare battery that makes your measurement stable, reliable and easy. Specification: Item Type:Electronic Caliper Material: stainless steel. Measuring range: 0-150mm Measuring accuracy: ±0.02 mm. Replacement battery: 1 x LR44 180mAh button cell (built-in) Power supply battery: 1 x LR44 180mAh button cell (built-in) Package list: 1 x electronic caliper. 1 x button cell. 1 x instruction manual 1 x storage box Package List 1 x Electronic Vernier Caliper 1 x Button Cell 1 x Instruction 1 x Storage Box