Specifications: This caliber ruler has high accuracy to measure. With high definition large screen, sensitive response and real-time digital display, you can easily read the number. Measuring length can be exchanged between metric system and inch system. It has IP54 level to prevent dust, water stains and oil stains. Item Name: Vernier Caliper Material: Alloy Steel Battery: 3V (Not Included) Accuracy: 0.01mm Specification: 1#: 0-150mm 2#: 0-200mm 3#: 0-300mm Features: Static Protection, Digital Display, Waterproof Size: 30cm x 10cm x 3cm/11.81" x 3.94" x 1.18" (Approx.) Notes: 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. Package Includes: 1 x Vernier Caliper