1Portable laser distance meter with spirit level on the right, measure any distance from 1mm to 40/60/80 meters, easily, quickly and with high accuracy 2Mini laser distance with multi-functions, measuring unit switch, single distance measuring, continuous measuring, measurement of area, volume, pythagoras, addition or subtraction 3Self-calibration function, with adjusting range of -9 to 9mm, keeping the precision of the device 4Record function, it can record your measuring result under measuring mode and can also record the result under area, volume and pythagoras mode, and all the recent records can be deleted keep your safe right in the meter 5Comes with a portable pouch and a hand strap, which makes it easy to be taken anywhere or to be stored for next time use