Indoor Outdoor General Purpose Green Laser Range Finder 1. Distance measurement range: 5070100m 2. Distance measurement accuracy: +-(2mm+d x 110000) 3. Laser type level: Level 2 500-800nm, less than 1mW 4. Number of stored records: 99 records 5. Automatic laser cutoff: 20 seconds (single measurement) 6. Automatic shutdown: 150 seconds 7. Full power working times: 8000 times 8. Storage temperature range: -20 degrees Celsius - 60 degrees Celsius 9. Working temperature range: 0 - 40 degrees Celsius 10. Storage humidity: 20% - 80%RH 11. Battery used: 2 1.5VAAA batteries (not included) 12. Functions: continuous measurement function, area and volume measurement, pythagorean measurement function, addition and subtraction measurement function, area and volume addition and subtraction, maximumminimum value, self-calibration function 13. Size: about 11.2 x 5 x 2.5cm Package list: - Rangefinder x 1 - Lanyard x 1 - Instruction manual x 1 - Storage bag x 1