Laitz Accurate hand-held laser distance meter Technical Data: Measuring range: 0.05 ~ 60 m | Measuring accuracy: +/-2 mm | Measuring unit: m, ft, in | Laser type: 640-660nm | Functions: Distance, Area, Volume, Continuous Measurement(Max/Min Measurement), Pythagorean Theorem(3), History Memory(50), Angle Measurement, Unit Setting(m,ft,in,00'00"), Measuring Reference(2),Color Display, Laser Off: 30s, Automatically Swtich Off: 3 min., Wavelength: 620~690nm, Batteries: AAA,1.5V*2 , Specification(cm): 110*43*24, Weight:80g. We guarantee 12-month warranty.