Measure Range: 0.5 M~50M.Resolution: 0.001M.Typical Accuracy: ±2mm.Measure Speed: 0.5 sec.Laser Type: 650 nm,ClassII,﹤1mW.Laser: 30 seconds.Automatic Switch-off.Operation Temperature: 0℃~40℃.Storage Temperature: -20℃~60℃.Power supply: 9V Alkaline or NiCd batteryBattrty Life: Up to 5000 measurement.Dimension: 104.7×61×32mm .Weight:approx. 150 g (including battery).