Feature: 1. Exquisite Workmanship: The scale uses electroplating process, the scale is clear, and the measurement reading is more accurate. 2. Easily Use: One key conversion between metric and inch, free measurement, convenient and quick, no need for cumbersome conversion. 3. Material: Made of stainless steel, the ruler body is anti falling, anti vibration, anti corrosion, wear resisting, durable. 4. High Accuracy: ±0.02mm/0.001(<100mm) / ±0.03mm/0.001(> 100‑200mm), compact and portable, easy to carry out. 5. Features: Measuring range is 0~150mm/0~6in, resolution is 0.01mm/0.0005sec, measuring speed is 1.5m/sec, 60in/sec. Specification: Item Type: Digital Caliper Material: Stainless Steel Battery: LR44 1 x 1.5V (Not Included) Purpose: For Object Thickness, Width, and Height Measurement Display: LED Measuring Range: 0~150mm/0~6in Resolution: 0.01 mm/0.0005sec Accuracy: ±0.02mm/0.001sec(<100mm) / ±0.03mm/0.001(> 100-200mm) Measuring Speed: 1.5m/sec, 60in/sec Measurement System: Linear Capacitance Measurement System . Package List: 1 x Digital Caliper1 x Storage Box1 x User Manual Note: 1. Clean the caliper rod with a dry cotton cloth before use to avoid messy display of the caliper due to moisture.2. Keep the calipers clean and dry (liquid will damage the slider).3. The surface should be cleaned gently with cotton fabric, and do not use gasoline, acetone and other organic solvents.4. To save power, turn off the device when the caliper is idle for a period of time.5. Do not put any pressure on any part of the caliper, do not use the electronic pen, so as not to damage its chip.6.Ship without battery.