Digital Laser Rangefinder Tape Distance (S40) Feature: HD display screen, clear data display, can add and subtract data. Reasonable data storage can be done through historical data. Compact size and light weight, convenient to carry. Apply backlit LCD display, convenient to read data in the dark. Easy operation and maintenance, excellent performance. Specification: Material: plastic and aluminum alloy Weight: 145 g/5,1 oz Colour blue Measuring range: 0,05-40 m Measurement accuracy: 2mm Laser degree: class 2M II Laser Type: 620-690nm, Surface Measurement: YES Volume measurement: YES Pythagorean Theorem Measurement: YES Addition and subtraction method: YES Tracking Measurement: YES Maximum and minimum measurement: YES Backlight: YES Sound Signal Tips: YES Deleting data: YES Data storage: 20 groups Dust and water: IP 54 Operating temperature range: 040 Storage temperature range: -2065 Battery life: 50008000 measurements Power supply: 2* AAA LR6 1,5 V (NOT included) Automatic laser shutdown: 30 s Automatic power off: 3 min Instrument Size: 11,5*4,9*2,5 cm/4,5*1,9*1 inch List of packages: 1 * Digital Laser Rangefinder 1 * hanging cord