2) all metal shell,hard enought.
4) the mate of rilfescope, coordinate with the machine aiming point.
5) easy to mount on rifle, bows, crossbows and other products.
6) can be continuous distance measurement in foggy weather.
7) test the speed if the moving objects in the same direction.
8) units of measurement can be change immediately.
9) the power displayed in groups.
*Measuring range: 5-1200M
*continuous press the tail switch turn on the device.
*Ranging mode is the default,this is the distance measurement mode.
*continuous press the M button,change the unit of distance.M and Y.
(Note: when the device is emitting a laser, the unit can not be change)