Accuracy,typically :+/-2mm Distance: .0.2~60M Handheld type Features:1,Measure distance directly2,Indirect measurement with Pythagorean (right-angled triangle)3,measure ... range 0.2 m ~ 60 m Min. unit 1mm Laser class II Laser diode635 nm, < 1 mWBattery2×1.5V LR03(AAA)Battery ... ~70°CWorking temperature-10°C~50°CWeight, approx.130g Portable Digital Laser Distance Meter