Serenelife SLGRF20SL Laser Range Finder Manual featured imhimg

Serenelife SLGRF20SL Laser Range Finder Manual


Serenelife SLGRF20SL Laser Range Finder Manual

Serenelife SLGRF20SL Laser Range Finder Manual product img



Serenelife SLGRF20SL Laser Range Finder Manual fig 1

  1. Laser Emission/Objective Lens
  2. Laser Receiving Lens
  3. Unit Switching Button
  4. Power/Start Button
  5. Observation Eyepiece
  6. Rotation-type Focusing
  7. Battery Cover

Operating Instructions

Start: Press the START/POWER buttonSerenelife SLGRF20SL Laser Range Finder Manual fig 4for about 1 second and the laser Rangefinder monocular will start. The laser indicator willSerenelife SLGRF20SL Laser Range Finder Manual fig 2blink when the laser is transmitting. If the reflection of the target is too weak, the LCD will display “——-“.

Eyepiece is adjustable, as shown in the picture below. It’s designed for better vision and to resist external lights.

  1. Rotate the focus ring counterclockwise to extend the eyepiece.
  2. Rotate the focus ring clockwise to shorten the eyepiece.

Serenelife SLGRF20SL Laser Range Finder Manual fig 5

Pin Seeking (Golf Flag Lock):
Aim at the golf flag or pin, keep pressing the power button, and move it a little left and right until the distance of the flag or sticks is locked and displayed on the LCD. Move a little to the left and right in order for the instrument to identify the distance from the closest object (the flag or pin).

Meter/Yard Change:
Keep pressing the “mode” button for almost 2 seconds, and the unit switch between M (meter) and Y (yard).

Low Battery Icon:
When the iconSerenelife SLGRF20SL Laser Range Finder Manual fig 3shows, means the battery is low and should be replaced immediately to avoid inaccuracy.

Automatic Power OFF
Laser Rangefinder will automatically power OFF in 20 seconds without operation.


  1. In order to protect the coating of the lens, do not use your fingers to touch the surface.
  2. Laser Rangefinder has been precisely assembled by instruments, please don’t disassemble by yourself. Please send the device back to the dealer for repair when needed.
  3. When the lens needs cleaning, please wipe it gently with a cleaning cloth, do not use other objects to wipe it.
  4. Avoid heavy collision when carrying the object. S. Keep the product away from moisture during storage. Please keep it in a dry, cool, and well-ventilated place, and avoid direct sunlight, dust, and high temperatures.
  5. Rain and fog weather will affect the laser path, which may cause measurement errors.


  • Do not stare into the laser beam.
  • Eyes can be permanently damaged by looking into the sun with this device.
  • Do not aim the rangefinder directly at the sun as permanent inside component damage will occur.
  • Keep the eyepiece away from direct sunlight.
  • The device is to be stored safely in a temperature environment set to -4°F – 140°F.


  • Precise, Accurate & Reliable
  • Smart Digital Interface Display Readout
  • Helps Improve Your Golf Game & Depth Perception
  • (2) Selectable Modes: Pin-Seeking & Distance Measuring
  • Simple Button Control Operation
  • Compact Handheld Design
  • Adjustable Manual Lens Focus
  • Battery Saving Function: Automatic Power Off
  • Great for Use at the Driving Range
  • Used by Casual & Professional Golfers
  • Includes Convenient Travel Case

Technical Specs:

  • Measuring Range: 5.5 – 546.2 Yards
  • Accuracy: +/- 1 Yard
  • Selectable Measuring Units: Yards/Meters
  • Optical Objective Lens: 24mm
  • Field of View: 7°, Magnification: 6X
  • Construction Material: Engineered ABS
  • Battery Operated: Requires (1) x ‘CR2’ (Lithium, 3V), Included
  • Dimensions (L x W x H): 4.0’’ x 1.6’’ x 2.9’’
  • Sold as 1


540 YARDS variety: a selection finder that has a unique, correct, and reliable measuring range between 5.4 – 540 Yards. A unit of size can also be adjusted or modified between meters or yards. ADJUSTABLE awareness LENS: The laser monocular has adjustable guide recognition eyepiece lens. With an optical objective lens of 21mm, it is able to magnify as much as 6X zoom sight, has a diopter regulate a range of +/-four, and a 7.5° area of view 2 SELECTABLE MODES:

To help with depth perception, this rangefinder has 2 selectable modes. First is the pin-seeking and 2nd is the gap measuring. It additionally has a clever digital interface to show readout for higher readings COMPACT AND transportable: Made with a compact transportable hand-held layout which makes it perfect for driving variety out at the golfing course, looking, taking pictures, archery, and different sports. It also comes with a garage bag or travel case for comfort BONUS tour CASE included:

This a hand-held, lightweight, portable tool that any golfer ought to deliver around. that’s why, along with your rangefinder, you may receive a long-lasting, zipper-secured wearing case – so that you can take it anywhere with you.



Serenelife SLGRF20SL Laser Range Finder Manual

Leave a Reply