The laser measuring tool is only 33g, can be easily puted in pocket or carry it away. The ultra-light design enables one-hand measurements in complex working environments. The measuring laser has 6 measurement modes, can measure distance, area, volume, height, continuous measurement and multi pythagorean. Addition and subtraction. Units switchable: m, ft, in.It is used for fire fighting, dangerous goods reaction, meteorology, military, law enforcement, research, education, scientific investigation, competitive shooting, hunting, fishing, etc.Customized is available.