Measuring distance: 0.05-40m Accuracy: 2mm / +0.06in Units of measurement: m/inch/ft Laser type: red, 635nm, <1mW, Class II Working temperature: 0-40C Power supply: 200mAh 3.7v Size: 90*25*12.7mm Weight: 30g 40 meters distance, second reading, high precision, more accurate measurement Minimalist and refined texture, easy to put in your pocket/lightweight and portable Aluminum-magnesium alloy body, light and portable, comfortable to hold The weight of the whole machine is 30g and the thickness of the fuselage is 12.7mm, which can be easily put in a pocket and carried with you. Multiple Units Laser Distance Meter: USB laser distance meter allows you to change the unit between meters, inches and feet, allowing you to measure quickly and easily to improve efficiency. Area and volume measurement, Pythagorean definition measurement, addition and subtraction measurement, super power and energy saving, Multifunctional Measuring Tool: The digital laser distance meter can be widely used in interior design, interior decoration, architecture (rooms, apartments, buildings, real estate, factories, warehouses), etc. Quantity delivered: 1 piece