Bushnell 20-4124 User Manual page 3

hOW DOES IT WORK?
Previously, you had to estimate distance to a target by means of a riflescope reticle, calculating post-
to-post intervals with more or less exact results. Now you can measure the exact distance to a target
with dead-on precision instantaneously. With the YARDAGE PRO
RIFLESCOPE, you just activate the unit by pressing the infrared remote and the laser rangefinder emits
invisible, eye safe, infrared energy pulses. Sophisticated digital technology instantaneously calculates
distances by measuring the time it takes for each pulse to travel from the rangefinder, to the target, and
back resulting in instantaneous and accurate readings within the field-of-view.
LASER RANGEFINDER
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RANgINg ACCURACY
The ranging accuracy of the YARDAGE PRO
minus one yard / meter under most circumstances. The maximum range of the instrument depends on
the reflectivity of the target. The maximum distance under optimal conditions is 800 yards / 73 meters.
Note: You will get both longer and shorter maximum distances depending on the reflective properties
of the particular target and the environmental conditions at the time the distance of an object is being
measured. The color, surface finish, size and shape of the target all affect reflectivity and range. The
brighter the color, the longer the range. White is highly reflective, for example, and allows longer ranges
than the color black, which is the least reflective color. A shiny finish provides more range than a dull
one. A small target is more difficult to range than a larger target. The angle to the target also has an
effect. Shooting to a target at a 90 degree angle (where the target surface is perpendicular to the flight
path of the emitted energy pulses) provides good range while a steep angle on the other hand, provides
limited ranging. In addition, lighting conditions (e.g. the amount of sunlight) will affect the ranging
capabilities of the unit. The less light (e.g. overcast skies) the farther the unit's maximum range will be.
Conversely, very sunny days will decrease the unit's maximum range.
LASER RANGEFINDER RIFLESCOPE is plus or
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