COOCHEER Digital Laser Long Distance Meter, Handy Distance Measurement Range Finder Meter Tape with Mute Function and Removable Clip 60M/196Feet Superb Accurate: the Coocheer's accuracy is less than 1/16 in and have 3 kind of units m/in/ft Make You Life Easier: our product can measure single and continuous distances (min/max), area, volume, Pythagoras for height and triangular area, and offers a add/subtract function Easy to Read Display: a 4-line backlit display and have 20 measurement memories so you don't need to write down the data Ultra Compact and portable: come wth the size 4.65x2.13x1.1 in and the nylon carrying case is included Three Optional Reference Point: three reference points to fits in all kind of measure condition