Features High-strength carbon fiber composite material, light and easy to carry Can be used to measure magnetic objects without damaging during measurement Can be used in schools, carpentry, yards or homes Display provides clear and practical readings Available in two styles for choice Function: 1. High-strength carbon fiber composite material, light weight and easy to carry 2. Can be used to measure magnetic objects without damaging during measurement 3. Can be used in schools, carpentry, yards or homes 4. The display provides clear readings that are accurate and comfortable 5. Available in two optional styles Specification: Item Type:Electronic Caliper Material:Carbon Size: 150mm/300mm (optional) Function:Measuring Accuracy: 0.1mm Measuring range: 0-150mm , 0-300mm Operating Temperature: 27-40°C Battery: 1 x CR2032 / LR44 button battery (not included) Power button Measurement/Imperial Conversion Keys Clear key Package List: 1 x Electronic Caliper Package List 1 x Electronic Caliper