【Update version 2020】 Laser tape precision is ± 2mm and wide measuring range from 0.04m to 80m, with electronic bubble level to improve accuracy. Latest 20 sets of 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 switch 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 when fully charged. The four data line LCD display and high definition backlight allow us to compare data in a more clear and convenient way. 【Widely Used】 Multifunction digital distance measuring tool can be widely used in interior decoration, interior design, construction (rooms, buildings, factories, warehouses) etc. Contains French manual with functions detailed. v Instruction manual in French - Body size: 3x1.7x9.98 cm - Automatic shutdown: 45 s - Automatic laser stop: 15 s -Power supply: Usb - Laser level: Class II - Laser type: 635nm