Leupold RXB-IV Owner's Manual

RXB-IV ™

Digital Laser

Range Finding

Binoculars

OPERATING INSTRUCTIONS

Thank you for choosing the Leupold® Green Ring™ RXB-IV™ 9x32mm digital laser range finding
binoculars. Before using the product, we recommend that you read this entire instruction manual.
This will ensure that you obtain the maximum benefit from its use and that you are aware of the
safety precautions that are important to remember when using it.

THIS MANUAL WAS WRITTEN IN ORDER TO PROVIDE YOU WITH ALL THE INFORMATION NEEDED TO
PROPERLY OPERATE AND OBTAIN YEARS OF BENEFICIAL USE FROM THE RXB-IV. KEEP IT IN A SAFE PLACE
AND REFER TO IT AS NEEDED.

SAFETY AND OPERATION PRECAUTIONS

The Leupold RXB-IV 9x32mm range finding binoculars does employ
an EyeSafe FDA Class 1 and CE Class 3A laser in its operation.
Because of this, there are a few precautions that are important
to remember:

•

Do not depress the POWER button while aiming at a human eye
or while looking into the optics from the objective side

• Do not leave the RXB-IV within the reach of small children

• Do not take the product apart as it has a self-protection device
in the electronic control module and may cause an electric shock

• Do not attempt to use any power source other than a CR123A
battery (or equivalent) — the RXB-IV is designed to prohibit
accessing any other external power supply

Features of the RXB-IV™ at a Glance

• Laser Radiation:
FDA Class 1 / CE Class 3A

• Measurement Range:
10 yards – 1,500 yards
(9 meters – 1,372 meters)

• Measuring Time: 1 – 3 seconds

• Auto Power Off after 9 seconds

• Power: CR123A battery or
equivalent

• Battery Life: approximately 2,000 measurements

• The RXB-IV is waterproof and nitrogen filled

FOCUS

POWER

MODE

BATTERY

CHAMBER

TRIPOD

ADAPTER

TOP VIEW

BOTTOM VIEW

HOW THE RXB-IV WORKS

The RXB-IV is a top-quality 9x32mm binocular that incorporates
the additional benefit of a state-of-the-art laser range finder
capable of instantaneously and accurately measuring the distance
of a deer-sized animal from 10 yards to 700 yards (9 meters to
640 meters), an inanimate object from 10 yards to 800 yards
(9 meters to 732 meters), and a reflective target from 10 yards to
1,500 yards (9 meters to 1,372 meters). It emits a series of invisible,
infrared energy pulses that are reflected off the selected target
back to the optical unit. State-of-the-art circuitry and precision
computing circuits are used to calculate the distance instantaneously
by measuring the time it takes for each pulse to travel from the
RXB-IV to the object and back.

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Using the Leupold

®

RXB-IV

SETTING THE FOCUS

The RXB-IV uses an independent focus design; therefore each eyepiece
is focused independently of the other. To set the focus for the unit:

1.

View an object at 200 or more yards (183 or more meters) away.

2. Cover the right objective lens.

3. Focus the image you see with your left eye using the left

eyepiece.

4.

Uncover the right objective lens and cover the left objective lens.

5. Focus the image you see with your right eye using the right

eyepiece.

6. The RXB-IV is now focused clearly for most distances.

READING THE INTERNAL DISPLAY

The Organic Light Emitting Diode (OLED) designed into the optical
path can be manually switched between ranging modes, as measured
in meters (M) or yards (YD), or used to obtain distance readouts
while simultaneously viewing the target. (The RXB-IV can also
simply be used as a 9x binocular without activating the OLED.)

INTERNAL DISPLAY AS SEEN THROUGH THE RXB-IV
WHEN THE POWER BUTTON IS DEPRESSED

– TBR™, BOW or Compass readout –
Indicates one of the following:

MEASURING DISTANCE WITH THE RXB-IV

MEASUREMENT OF DISTANCE WITH THE RXB-IV IS A VERY SIMPLE
OPERATION:

1. View the object of which the distance is to be determined
through the binocular.

2. Depress and hold the POWER button for more than one
(1) second to illuminate the display.

3. Align the reticle over the object being viewed.

4. Depress the POWER button again – this will cause the
laser to activate.

5. Read the distance as shown in the image field.

CONTINUOUS MEASUREMENT OF A MOVING TARGET:

1.

Follow the instructions for “Measuring distance…” as explained
previously.

2. Once the target has been measured, continue to hold
down the POWER button and follow the object as it moves.

3. The distance will automatically update as long as the POWER
button is continuously depressed.

4. This procedure can also be used to obtain the range of
multiple animals or objects; simply move the reticle from one
target to another while holding down the POWER button.

• True Ballistic Range™ to the target in
either yards (YD) or meters (M) based
on the ballistics group selected

• The direction of the target in a 360°
compass direction (0° representing North,
180° representing South, etc.)

– LOS readout indicates one of the following:

• The line-of-sight distance to the target in either yards (YD) or
meters (M); this does not account for the angle or ballistics

• Calibration and declination adjustment mode

BATTERY POWER STATUS INDICATOR

To determine your battery’s power level, look for the following
indicators:

FULL – A full battery bar indicates your battery is at or near
peak capacity.

HALF – A half-full bar indicates your battery has reached
half-capacity.

LOW – If the battery bar is empty, yet there is still data
displayed above the bar, the battery is low, and nearing
the end of its life.

NO POWER – If the battery bar is empty, and there is NO
data display shown above the bar, your battery is dead and
you must replace it. The battery status bar will flash and
the unit will shut down when no power remains.

CLEARING THE LAST DISTANCE OBTAINED:
The last range reading taken, does not need to be cleared before

reading another object’s distance. For that reason, there is no reset
button. Simply aim at the new object using the reticle, depress the
POWER button and hold until the new range reading is displayed.

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