Leica DISTO D2 New 330ft Laser Distance Measure with Bluetooth 4.0, Black/Red This unit contains a Class II Laser with 1mW output 1/16" accuracy and up to 330 foot measuring range. Measuring units-0.000 m, 0.00 ft, 0'00" 1/16, 0 in 1/16. Measurements per set of batteries-up to 10000 Bluetooth 4.0 for transferring measurements into desired software Last 10 measurement memory, Dimensions : 116 x 44 x 26 mm / 4.57 x 1.73 x 1.02 in Pythagoras function for indirect height or width measurements.Operating temperature range:14F to 122F / -10C to 50C Intelligent automatic end piece for hard to reach corners