Specification:
?Laser Class: Class 2
?Max radiant power: <3mW
?Material : ABS
?Measure Range : 131ft/40m
?Accuracy : ±0.05 inch
?Battery Type : 250mAh Lithium Battery
?Emitted wavelength: 635nm-650nm
?Size :1.2 x 0.2 x 3.9 inch (L*W*T)
?Net Weight: 1 Oz