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Merger LRF
Merger LRF

Table of contents

Powering on and Image Settings

  1. Open the lens covers (2).
  2. Turn the device on with a short press of the ON/OFF (4) button.
  3. Adjust the interpupillary distance by moving the eyepieces (13) farther or closer to each other. It takes some effort to move the eyepieces.
  4. Adjust the symbol sharpness on the displays by rotating the eyepiece dioptre rings (12). In future, it will not be necessary to rotate the eyepiece dioptre rings, regardless of the distance and other conditions.
  5. To focus on the object being observed rotate the lens focusing ring (10).
  6. Select the calibration mode: manual (M), semi-automatic (SA) or automatic (A) in the main menu (enter the menu by long pressing the MENU (9) button).
  7. Calibrate the image with a short press of the ON/OFF (4) button  (when calibration mode (SA) or (M) has been selected). Close the lens cap before manual calibration.
  8. Select the required amplification level (“Normal”, “High”, “Ultra”) by briefly pressing the DOWN (8) button.
  9. Adjust the brightness, display contrast, smooth digital zoom in the quick menu (activate by briefly pressing the MENU (9) button).
  10. Press the LRF (6) button briefly to start the rangefinder. The rangefinder reticle will appear in the center of the image (the rangefinder mark appears in the centre of the image). Briefly press the LRF (6) button to measure the distance. Press and hold down the LRF (6) button for 2 seconds to measure the distance in scan mode. If the rangefinder is idle longer than for 4 seconds, it turns off automatically.
  11. After use, press and hold down the ON/OFF (4) button to turn the device off.


  • To prevent accidental decamouflage of the user, the displays automatically turn off when the observer moves the device away from the face.
  • When the device approaches the face, the displays will automatically turn on.
  • The proximity sensor can be disabled/enabled in the “General settings” section of the main menu.

Observation conditions: time of day, weather, different observation objects affect the image quality. Custom settings for brightness, display contrast as well as the function of adjusting the microbolometer sensitivity level will help to achieve the desired quality in a particular situation.​

Warning! Never point the lens at intensive energy sources such as laser radiation emitting devices or the sun. It can damage electronic components in the device. The warranty does not cover damage arising from failure to comply with operating instructions.