[ACCURATE & EFFICIENT RESULTS] This technique effectively reduces the error caused by excessive temperature; Dual bubble levels help you get a horizontal direction to get more accurate measurements. [MULTIPLE MEASURING FEATURES] The laser measuring tool can measure area, distance, volume, continuous measurement, Pythagorean-3 points method; Addition and subtraction mode help you get the calculation results more efficiently. [LCD BACKLIGHT & MUTE FUNCTION] The laser distance measure measures the distance up to 30m, freely change the units to In/M/Ft/Ft+In; Large backlit display gives you better visibility in dark areas, low battery indication; The mute function allows you to turn the measurement beep on or off as you like. [EASY TO USE] You can get accurate results in 0.5s, complete your work efficiently; 20 groups of data memory to review the measurement record, manually delete the data. Professional laser distance meter for home use/decoration, large areas such as buildings, real