The Rangefinder Ruler is designed for rapid distance determination in the field according to the mil formula.

Despite technological advancements, the U.S. Army still uses similar rulers even with the availability of laser rangefinders. The Rangefinder Ruler from ECOPYBOOK TACTICAL is a simple, compact option for distance determination that does not require charging. The ruler does not emit or reflect light.

The Rangefinder Ruler can be attached to any notebook produced by ECOPYBOOK TACTICAL.