【High precision range finder】 Laser tape precision is ± 2mm and wide measuring range from 0.04m to 40m, with electronic bubble level to improve accuracy. The latest 20 sets of measurement data can be saved and recalled. Silent function. Automatic calibration. 【Multiple measurement modes】 The laser meter has front / back baseline, allows you to quickly measure distance, area and volume, indirect Pythagorean measurements, addition and subtraction measurements, measurement keep on going. Free adjustment unit between M / in / ft for your needs. 【Durable and portable design】 The refined metal shell is more impact resistant and provides a more comfortable touch feeling. IP54 waterproof level and dustproof function protect the laser distance to the maximum. The wrist strap allows you to hold the meter stable and carry it easily. 【Rechargeable by USB and backlight】 Powered by energy efficient and environmentally friendly lithium battery, which allows you to measure distance up to 3000 times