Northwest Instrument NLR60 Laser Range Finder • Laser Range Finder • Laser Range: 0.16 ft - 164 ft. • Typical Accuracy: +/-1.5 mm • Standard Deviation: +/- 0,06 in • Measuring Units: m, in, ft • Laser Class: Class II • Laser Type: 635 nm • History Measurement Record: 20 • Dust / Splash Protection: IP 54 • Operating Temperature: 0C - 40C • Dimensions: 115 x 48 x 28 mm Weight: 135 g Batteries: 2x AAA