BATTERY ACTIVATION / BATTERY LIFE INDICATOR
Before first use: Remove the battery compartment cover by lifting the battery cover tab and
then rotating the cover counter-clockwise. Remove and discard the red plastic disc covering
the positive battery terminal, then replace the battery cover. NOTE: It is recommended that
the CR2 3-volt lithium battery be replaced at least once every 12 months. Please insert the
negative end of the battery into the compartment first.
Battery Level Indicator Icon (3):
Full charge
3/4 battery level remaining
1/2 battery level remaining
1/4 battery level remaining
Battery icon blinks - battery needs to be replaced, and the unit will not be operable.
BASIC OPERATION
• While looking through the laser rangefinder, press and release the Power/Fire button to activate the display.
• If the display appears blurry, rotate the monocular eyepiece in either direction until the display is sharp
for your vision.
• Placing the aiming circle (located in the center of the display) on a target at least 5-6 yards away, depress and hold the
Fire button down until the range reading displays below the aiming circle.
• Once a range is acquired, you can release the Fire button. The four "crosshairs" just outside the aiming circle will go
out, indicating the laser is no longer transmitting. The display will remain on and display the last distance measurement
for about 15 seconds until the display automatically switches off to extend battery life.
• You can press the Fire button again at any time to check the range to a new target. To re-fire, press the button again.
• To scan the laser across an area and get continuously updated range readings, continue to hold the Fire button down
and sweep the rangefinder over multiple targets. The crosshairs outside the aiming circle will flash to indicate scan
operation.
DISPLAY INDICATORS/ICONS
The Prime™ 1800 rangefinder's display incorporates the following illuminated indicators:
• Angle Range Compensation Modes
• Bow Mode (1)
• Rifle Mode (2)
• Battery Level Indicator (3)
• Aiming Circle/Dot (4)
• Active/Scan Laser Indicator (5)
• Targeting Modes
• BullsEye Mode (6)
• Brush Mode (7)
• Primary Numeric Display displays Line-of-sight Distance (8)
• Holdover / Bullet-drop Horizontal Distance indicators for Rifle Mode
• MOA holdover units selected (9)
• MIL (holdover units selected (10)
• IN (inch) or CM (centimeter) holdover units selected (11)
• SD = Variable Sight-In Distance (12)
• Range (Distance) Units (13): Y=Yards, M=Meters
• Secondary Numeric Display (14)
(Holdover / bullet drop for Rifle mode, True Horizontal Distance for Bow Mode)
• SETUP Mode (15)
• Angle Indicator (16)
6
3
1
5
16
4
12
15
9
10
14
7
2
8
13
11
3