Pinpoint Accuracy Even Where Visibility is Limited Traverse with confidence using sighting compasses from GPForestry Solusi. Prismatic compasses (or hand compasses) let you look directly at your target while taking a compass reading. Flip-up sighting prisms and integrated clinometers make this type of compass more optically versatile in the field. These watertight, hand-held compasses handle the heavy-duty use you dish out. Depend on GPSForestry to help you keep on course!