【PRACTICAL FUNCTION + EASY TO USE】Measurement range 50m, measurement accuracy: ±1/16 inch; Switch four units with one button: m / in / ft / ft + ft, 6 display effects: distance, area, volume, Pythagoras (indirect measurement), continuous measurement, addition and subtraction, maximum and minimum values, can meet any different needs; With automatic calibration and error reporting, maximize your measurement accuracy. 【ACCURACY + SUPER LARGE BACKLIGHT SCREEN】 With up to ±1/16inch accuracy, portable laser measurement can perfectly complete measurement task ranging from 0.16 to 165 feet. In addition, 4 interchangeable units between m / in / ft / ft + in are designed for people with different reading habits. A large backlight display provides users with better visibility. 【MULTIFUNCTION + 20 SETS OF DATA STORAGE】It has a mute function that can be used in libraries, classrooms , nearby gardens or other quiet environments; Measurement results can be stored. The laser meter has 20 sets of data memory, which is helpful for reviewing and comparing the measured data after measurement. 【SOFT RUBBER + IP54+ ANTI-SLIP DESIGN】 Wrapped with soft rubber, high quality material density wear-resistant, non-slip and anti-fall, IP54 (protected against splashing water and dust), low power consumption and long service life, can be used in construction sites, apartments, buildings, factories , warehouses; The stylish side design is effective and non-slip and feels better; 150 seconds automatic shutdown, able to protect