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 battery
Battrty Life:                        Up to 5000 measurement.
Dimension:                       104.7×61×32mm .
Weight:approx.                 150 g (including battery).