The LS1 is the lightest and simplest rangefinder ever. It weighs just 1/6 as much as similar products (27g) and is small enough to be carried on a keychain. One button can realize various functions, measuring distances up to 40 meters. A single charge suffices for up to 2,000 uses. LS1 changes the mode of operation of professional measuring instruments, making it easy and convenient for even older people or children to use. The aluminum alloy casing allows the LS1 withstand considerable friction and impact.