First, check the alignment of the HUD aiming reticle.
Select an isolated target about 100 or more feet (30
meters) away, such as a stop sign, utility pole or overhead
power wire. Slowly sweep the ProLaser III across the
target and observe that the proper range is displayed only
when the target is within the reticle area, indicating lateral
alignment. (Listening to the audio “chirp” indicating
reflection of laser pulses is helpful when using overhead
wires.) Rotate the ProLaser III so that it is at right angles
to its normal operating position, (positioned on its side)
and repeat the process to verify vertical alignment.