describe: This instrument is a three-in-one designed digital laser rangefinder that integrates laser distance measurement, 5m tape measure and laser cross mark. It has multiple measurement functions such as single/continuous measurement, area measurement, volume measurement, Pythagorean measurement, etc. It has historical data memory function and can save up to 20 sets of data. Widely used in road projects, houses, construction projects, water conservancy projects, electric power projects, pipeline projects, etc. Features: Three-in-one design digital laser rangefinder, laser ranging, 5m tape measure, and laser marking, all in one. It adopts high elasticity and toughness ABS+TPR shell, which is anti-slip, anti-fall, effectively dust-proof, and can provide a long service life. The LCD display with backlight is clear and you can clearly see the measurement data even in dim light environments. 5m manganese-plated steel tape measure for short-range measurement, with ruler hook, easy to use, available in both imperial and metric scales. It has a self-locking device. The tape measure automatically locks the current measurement position after being pulled out. When the unlock button is pressed, the tape measure automatically rebounds, which is safer and no longer hurts the hand. The laser distance meter (40m/60m optional) is specially designed for long-distance measurement and has a laser marking function to provide a good reference for horizontal and vertical lines for decoration projects. The instrument has multiple measurement functions such as single/continuous measurement, area measurement, volume measurement, Pythagorean measurement, etc. It has historical data memory function and can save up to 20 sets of data. Widely used in road projects, houses, construction projects, water conservancy projects, electric power projects, pipeline projects, etc. Specifications: Name: Three-in-one laser rangefinder Material: ABS+TPR+coated manganese steel Batteries: 2*1.5V AAA batteries (included) Laser measurement range: 40m, 60m (optional) Resolution: 2mm Measurement unit: m/in/ft Laser type: 635nm1mW Automatic laser off time: 30 seconds Auto off time: 180 seconds Data storage: 20 sets of tape measure working range: 0 -5m Minimum scale: 1mm Tape measure width: 19mm Unit: Imperial and Metric Scale tape material: 65 manganese steel Working temperature: 0-40 Storage temperature: -10 to 50 Product size: 85 * 82 * 56mm / 3.35 * 3.23 * 2.20" Product weight: 270g/9.52oz Packing size: 125 * 125 * 60mm/4.92 * 4.92 * 2.36" Packing weight: 300g/10.58oz Package contents: 1*Laser range finder