Merger Duo multispectral binoculars are made with the external design of classic daytime binoculars and provide comfortable viewing with both eyes.

The device allows you to quickly switch between thermal imaging and monochrome night digital channels, as well as supports PiP (Picture in Picture) multispectral mode, when the image of one channel is displayed in the main window, and the second – in the PiP “window”.

Merger Duo devices do not require an external light source and are not affected by bright light exposure in thermal imaging mode.

A thermal imaging channel can be used both at night-time and during the day in adverse weather conditions (fog, smog, rain), as well as having the obstacles (branches, tall grass, dense bushes etc.) hindering the target detection.

In black and white digital channel, the device allows observation both day and night. In night conditions (absence of starlight, moonlight), it is recommended to use an infrared illuminator.

Merger Duo binoculars are perfectly suited for night hunting, observation, trail orientation, identifying hazards, rescue operations, etc

• Multispectral binoculars
• IR-Illuminator
• АPS3 Battery Pack
• APS battery charger
• Power adapter
• USB Type-C cable with USB Type-A adapter
• Carrying case with straps
• Neck strap
• Quick-Start guide
• Lens cloth
• Warranty card
• Tripod adapter

1. Digital channel lens focus ring
2. Removable lens covers
3. Battery release button
4. Power ON/OFF/Calibration button
5. REC button
6. MODE button
7. UP/ZOOM navigation button
8. DOWN navigation button
9. MENU button
10. Thermal imaging channel lens focus ring
11. Battery APS 3
12. Eyepiece dioptre rings
13. Eyepieces
14. Battery compartment
15. Proximity sensor
16. LED indication of battery charge in the device
17. Tripod adapter
18. Socket for mounting a tripod adapter and IR illuminator
19. USB Type-C port

• 3 modes of operation: thermal imaging, black-and-white digital and multispectral PiP
• Microbolometer with a resolution of 640×480 pixels
• Digital sensor with a resolution of 1920×1200 pixels
• AMOLED displays with a resolution of 1280×960 pixels
• Classic daytime binocular design
• 8-color display palette
• 3 calibration modes: manual, semi-automatic and automatic
• Long detection distance (up to 1800 m) in thermal imaging mode
• Smooth digital zoom x1 – x8
• 3 levels of sensitivity enhancement (in thermal imaging and multispectral PiP  modes): Normal, High, Ultra
• “Picture-in-Picture” mode (in thermal and digital modes)
• Display functions turn off with the proximity sensor
• Display dimming function
• Auto shutdown function
• Defective Pixel Repair function
• Device firmware update using the free Stream Vision 2 App
• Wide operating temperature range -25 °С – +50°С (-13 °F – +122 °F)
• Completely waterproof IPX7
• Tripod mount
• Invisible IR illuminator for enhanced image detail in the digital channel

Video/Audio Recording

• Built-in video and sound recorder
• Integration with iOS and Android devices
• Wi-Fi remote control and viewing using a smartphone
• Storing photos and videos in Cloud when using the Stream Vision 2 App

Battery Pack

• Quick Change Li-Ion Battery Pack APS 3
• Charging from USB Power Bank
• Quick-Charge power delivery​

• Only use the charger supplied with the Battery Pack. The use of any other charger may irreparably damage the Battery Pack or the charger and may cause fire.
• Do not charge the built-in and removable batteries immediately after moving the device and batteries from a cold place to a warm place. Wait at least 30 minutes for the device and batteries to warm up.
• It is not recommended to charge the batteries with a charger connected to the USB port of a computer or laptop. It can damage the computer.
• Do not leave the Battery Pack unattended while charging.
• Never use a modified or damaged charger.
• Do not leave the Battery Pack with a charger connected to the power adapter after charging is complete.
• Do not expose batteries to high temperatures or to a naked flame.
• Do not use batteries as a power source for devices that do not support APS batteries.
• Do not disassemble or bend batteries or charger.
• Do not drop or strike batteries or charger.
• Batteries and charger are not designed to be immersed in water.
• Keep the Battery Pack out of the reach of children.

• For long-term storage, the built-in and removable batteries should be partially charged – from 50 to 80%.
• Batteries should be charged at an ambient temperature of 0 °C … +35 °C. Otherwise, battery life will be significantly reduced.
• When using batteries at sub-zero ambient temperatures, the battery capacity decreases, this is normal and not a defect.
• Do not use batteries at temperatures outside the range of -25 °C … +50 °C – it may reduce the battery life.
• The battery has a short-circuit protection. Any situation that may cause short-circuiting, however, should be avoided.

Option 1

1. Install the APS 3 battery (11) in the battery compartment (14) of the device.
2. Connect the USB Type-C cable (23) to the USB Type-C connector (19) of the device.
3. Connect the other end of the USB cable (23) to the Power Adapter (24) by removing the USB Type-A adapter.
4. Plug the Power Adapter (24) into a 100-240 V socket.
5. Wait until the batteries are fully charged (indication in the status bar: ; 1 – built-in battery, 2 – removable battery).

Note: next to the USB Type-C connector (19) on the device body there is a light-emitting diode (16) to indicate the battery charge level when the device is switched off.

(16) LED indication	Battery status
	Batteries are charging
	Batteries are charged
	One of the batteries is defective. The device must not be used. The defective battery should be replaced. Contact Pulsar service to replace the internal battery.
–	There is no external battery in the device, or the device is switched on

Attention! When charging rechargeable batteries via a USB Type-C connector (19) in the device body section:

• Charging priority is given to the built-in battery.
• When the device is off, both batteries are charged at the same time. When using the device, the external battery is discharged first.
• Built-in and removable batteries support USB Power Delivery fast charging technology when using the USB Type-C cable and power adapter supplied with the device.

Option 2

1. Insert the Battery Pack (11) along the rail into the APS charger (20) slot as far as it will go. The APS charger is supplied with your device or purchased separately.
2. Point A on the battery and point B on the charger should match.
3. Connect the USB Type-C plug of the USB cable (23) to the port (21) of the charger (20).
4. Connect the second plug of the USB cable (23) to the USB port on the power adapter (24).
5. Plug the device into a 100-240 V socket.
6. The LED indicator (22) will display battery charge status.
7. Wait until the battery is fully charged (LED indication (22): ).
8. Two batteries* can be charged at the same time: the second slot is designed for it.

(22) LED Indicator**	Battery Charge Status
	Battery level is from 0% to 10%. Charger is connected to a power supply.
	Battery level is from 0% to 10%. Charger is not connected to a power supply.
	Battery level is from 10% to 20%.
	Battery level is from 20% to 60%.
	Battery level is from 60% to 95%.
	Battery completely charged. Charging will automatically stop. The battery can be disconnected from the charger.
	Defective battery. Do not use the battery.

* Purchased separately.

** LED indicator displays the current battery charge status for 30 seconds when the APS charger is not plugged in. When the power is being supplied, the indicator is constantly displaying the current battery charge status, the LEDs are additionally flickering to display the battery charging process.

Attention! Before installing the battery, make sure that there is an undamaged rubber insulating ring on the battery. The ring is designed to protect your device from moisture getting inside. Damage to the device due to a missing ring is not covered by the warranty. To replace or purchase a ring, contact your local distributor.

1. Install the battery (11) into the battery compartment (14). A pictogram in the form of a “dot” on the battery should be on the left.
2. You will hear a click when the battery is placed correctly.
3. To remove the battery from the device, press the Battery Release button (3).

1. If there are two batteries in the device at the same time, two battery icons are displayed in the status bar (1 – built-in battery, 2 – removable battery). The device battery is displayed in white, inactive – in grey.
2. When there is no removable battery in the device, only one icon for the built-in battery displays in white in the status bar.
3. When both batteries are fully charged, the device is powered by the removable battery. If there is low removable battery level, the device will switch to the built-in battery.
4. Battery charge level is displayed in % above the icon in the status bar while charging.
5. It is possible to replace the removable battery even while the device is on.

Attention!  When installing a removable battery with a sufficient charge level, the device will automatically switch to it.

Power can be supplied from an external source such as a 5 V power bank.

1. Connect the external power supply to the USB Type-C port (19) of the device.
2. The device switches to external power source, while built-in Battery Pack and removable Battery Pack APS3 will gradually recharge.
3. The display will show the battery icon  with charge level as a percentage.
4. If the device is powered by an external power supply, but the APS3 battery is not connected, only the built-in battery will be charged.
5. When the external power supply is disconnected, the device switches to the internal battery pack without powering off.

Warning! Charging the built-in battery and the APS3 battery from the power bank at an external temperature below 0 °C (32 °F) can reduce the battery life. When using external power, connect the Power Bank to the device after it has been turned on and working for several minutes.

1. Open the rubber plug of the USB type-C connector (19) of the device.
2. Insert the type-C plug of the IR illuminator (26) into the type-C connector (19). The tripod screw (27) should fit into the tripod socket (18).
3. Tighten the tripod screw (27) as far as it will go.
4. Adjust the light spot position in the field of vision of the digital channel by tilting the IR illuminator lens forcefully (25).
5. To remove the IR illuminator, unscrew the tripod screw (27) and disconnect the IR illuminator from the type-C connector (19) of the device.

Note: the hole in the tripod screw (27) can be used to mount the device on a tripod.

1. Open the lens covers (2).

2. Press the ON/OFF (4) button briefly to power the device on.

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. Briefly press the MODE button (6) to select the desired image mode: thermal or digital.

6. To focus on the observation object, rotate the lens focusing rings of the thermal imaging (10) and digital (1)

7. Long press the MODE button (6) to activate the PiP multispectral mode. Briefly press the MODE button (6) to select the image mode of the PiP window: thermal or digital.

8. In thermal imaging and multispectral PiP  modes:

• Select the calibration mode: manual (M), semi-automatic (SA) or automatic (A) in the main menu (enter the menu by long pressing the MENU button (9)).
• Calibrate the thermal image by briefly pressing the ON/OFF button (4) (when calibration mode SA or M has been selected). Close the thermal channel lens cover before manual calibration.
• Select the required amplification level for the thermal image (“Normal” , “High” , “Ultra” ) by short pressing the DOWN (8)
• Activate the smoothing filter  in the main menu to improve the thermal image as the amplification level increases.
• Fast switch between the “White hot” palette of the thermal image and the palette selected in the main menu by long pressing the DOWN (8) button.

9. In digital and multispectral PiP  modes with a connected IR illuminator:

• Shortly press the DOWN (8) button to turn on the IR illuminator.
• Shortly press the DOWN (8) button to select one of three power levels of the IR illuminator. An increase in power level is required with the increasing distance to the observation object. This increases the discharge rate.
• To turn off the IR illuminator, press and hold the DOWN (8)

10. Adjust the brightness, display contrast, smooth digital zoom in the quick menu (activate by briefly pressing the MENU button (9)).

11. Power the device off with a long press of the ON/OFF button (4).

Notes:

• 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.

The carrying case comes with 2 straps:

1. 2-point strap for carrying the case on your shoulder.

2. 4-point strap for comfortable carrying of the case on the chest during intensive movement and uniform weight distribution.

The binoculars are equipped with safety straps with carabiners that can be hooked onto the rings on the 4-point strap or on the neck strap. The length of the safety belts can be adjusted.

1. Colour Mode (displayed only in thermal imaging and Multispectral PiP modes):

– White hot

– Black hot

2. Image mode:

Digital mode

Thermal imaging mode

Multispectral PiP Digital

Multispectral PiP Thermal

Multispectral PiP Digital disabled

Multispectral PiP Thermal disabled

The image channel can be disabled in the “Viewing Channel Activation” sub-item of the General Settings section.

3. IR illuminator power level (e.g. Level 3)

4. Amplification level (e.g., Normal; displayed only in thermal imaging and Multispectral PiP modes)

5. Smoothing Filter (displayed when the function is on; displayed only in thermal imaging and Multispectral PiP modes)

6. Calibration mode (a countdown timer will appear instead of the calibration icon when in automatic calibration mode with 5 seconds remaining until automatic calibration; displayed only in thermal imaging and Multispectral PiP modes)

7. Microphone

8. Current magnification

9. Wi-Fi connection

10. Clock

11. Power supply:

• Battery discharge level  (when the device is powered by a built-in or removable battery).
• External battery power indicator  (when the device is powered by an external power supply).
• Battery indicator  with current percentage of charge (when charging from an external power source).

The quick menu is used to quickly access the settings for brightness, contrast, smooth digital zoom and use the stadiametric rangefinder.

• Enter the menu with a short press of the МENU (9) button.
• To toggle between the functions below, press successively the МENU (9) button.

Brightness – press briefly the UP (7)/DOWN (8) buttons to change display brightness from 0 to 20.

Contrast – press briefly the UP (7)/DOWN (8) buttons to change display contrast from 0 to 20.

Smooth digital zoom – press the UP (7)/DOWN (8) buttons to change digital zoom.

Smooth digital zoom is in 0.1x increments.

Note: the magnification value is reset to the base value when the device is switched off.

Stadiometric Rangefinder  – change the position of special marker lines to determine the distance to the object being observed by pressing the UP (7)/DOWN (8) buttons (for more details see the Stadiametric Rangefinder section).

• To exit quick menu, press and hold down the МENU (9) button or wait 5 sec for automatic exit.

The device has 3 image modes: thermal imaging, digital and multispectral PiP mode.

• Quickly switch between thermal and digital modes by briefly pressing the MODE (6) button.
• Activate the multispectral PiP mode by a long press of the MODE (6) button.
• In the multispectral PiP mode, the image channels in the PiP window are switched by briefly pressing the MODE (6) button.

Thermal Imaging Mode

The device displays an image from a thermal imaging microbolometer when using the thermal imaging mode.

This mode allows you to use the device both at night-time and during the day in adverse weather conditions (fog, snow, haze) when there are obstacles (branches, tall grass, dense bushes etc.) that make it difficult to detect the target.

In thermal imaging mode, the riflescope does not need an external light source and is resistant to high light levels.

Digital Mode

In digital mode, the device generates a black and white image from a digital sensor.

In this mode, the device allows observation both day and night. In night conditions (absence of starlight, moonlight), it is recommended to use an infrared illuminator ith a wavelength of 940 nm.

Multispectral PiP

In the multispectral PiP mode, the image of one channel is displayed in the main window, and the image of the second channel is displayed in the PiP window.

In this mode, digital zoom is applied only to the PiP window. The magnification in the main window is set to base.

Merger Duo binoculars feature video recording and photography of the image being ranged to the internal memory card.

Before using the photo and video functions, read the Date and Time subsections of the General Settings section.

Built-in recorder operates in two modes:

• Photo (photography; the icon  is displayed in the upper left corner of the image).

• Video (video recording; the icon is displayed in the upper left corner of the image, the total remaining recording time is given taking into account the current resolution in the HH:MM format (hours:minutes).

Switching between the operating modes of the video recorder is done by long pressing the REC (5) button. Switching between the modes is cyclical (Video–> Photo–> Video…).

Photo mode. Capturing an image

1. Switch to the Photo mode with a long press of the REC (5) button.

2. Press the REC (5) button briefly to capture a photo. The icon  flashes – the photo file is being saved to the built-in SD card.

Video mode. Recording a video

1. Switch to the Video mode with a long press of the REC (5) button.

2. Press the REC (5) button briefly to start video recording.

3. When the video recording starts, the icon  will disappear, instead of it the REC icon as well as the video recording timer displayed in the MM:SS (minutes:seconds) format will appear .

4. Pause/continue recording by briefly pressing the REC (5) button.

5. Press and hold the REC (5) button to stop video recording.

Video files are stored in the built-in memory card:

• After turning off the video recording;
• Upon powering the device off if recording was on;
• When the memory card is overfilled during recording (Memory Full message appears).

Notes:

• You can enter and navigate the menu during video recording.
• Recorded videos and photos are saved to the built-in memory card of the device in the format img_xxx. jpg (for photos); video_xxx. mp4 (for video).
• Videos are recorded in clips with a maximum duration of 5 minutes. The number of recorded files is limited by the capacity of unit’s internal memory and video compression ratio.
• Regularly check free memory within the built-in memory card and move the footage to other storage media to free up the memory card space.
• In case of a memory card error, you can use the format function in the General Settings section of the main menu.
• When the Display Off function is activated, video recording continues to run in the background.

The device allows you to quickly increase the basic magnification (please refer to the Magnification line in the Specificationstable) by 2, 4 or 8 times.

• To operate the discrete digital zoom, press successively the UP/ZOOM (7) button.
• The digital zoom will not be saved after the device is re-started.

Note: the magnification value is reset to the base value when the device is switched off.

Available in thermal imaging and digital mode

PiP (“Picture in Picture”) allows you to see a zoomed image simultaneously with the main image in a dedicated window.

In this mode, the same image channel is displayed in the main window and the PiP window.

To use the multispectral PiP mode, see Image Modes (Thermal Imaging/Digital/Multispectral PiP).

• Turn on/off the PiP function with a long press of UP/ZOOM (7) button.
• Change zoom ratio in the PiP window with a short press of UP/ZOOM (7) button.
• The zoomed image is displayed in a dedicated window, while the image in the rest of the screen is displayed at base magnification.
• When PiP is turned on, you can operate the discrete and continuous digital zoom. The magnification will take place only in the dedicated window.
• When PiP is turned off, the image is shown with the optical magnification set for the PiP function.

• Turn on the wireless module in the WI-Fi Activation
  menu option.

Wi-Fi operation is shown in the status bar as follows:

Status bar indication	Connection status
	Wi-Fi is off
	Wi-Fi activated by the user, Wi-Fi in the device is being activated
	Wi-Fi is on, no connection with device
	Wi-Fi is on, device connected

• Your device is detected by an external device as “MERGER_XXXX”, where XXXX – is the last four digits of device’s serial number.
• After entering the password on a mobile device (see Password Setup subsection of the Wi-Fi Settings section for more information on setting a password) and connection is established, the icon in the status bar will change to .
• The Wi-Fi function will turn off automatically if there is not enough battery power for Wi-Fi.

This function darkens the screen, which aids the user’s concealment. However, the device stays on.

The displays can be turned off automatically if the proximity sensor is turned on or by pressing the ON/OFF (4) button  if the proximity sensor is turned off.

The proximity sensor is turned on:

1. When the device moves away from the user’s face, the displays will turn off.
2. When the device approaches the user’s face, the displays will turn on again.
3. While holding the ON/OFF (4) button, a countdown icon  will appear on the displays and the device will turn off.

The proximity sensor is turned off:

1. When the device is on, press and hold the ON/OFF (4) button. The displays will turn off, the current time and the “Display off” icon will appear.
2. Turn the displays back on with a short press of the ON/OFF (4) button.
3. When you press and hold the ON/OFF (4) button, the displays show the “Display off” icon with a countdown. Pressing & holding the button down for the duration of the countdown will power the device off completely.

Merger Duo binoculars are equipped with a stadiametric rangefinder which allows the user to determine the approximate distance to an object of a known size with reasonable accuracy.

1. Select the Stadiametric Rangefinder function with short presses of the MENU (9) button until the icon  is selected.
2. You will see on the display: measurement bars, icons of three reference objects and respective distances for the three objects.
3. Position the lower fixed bar under the object being ranged.
4. By pressing the UP (7)/DOWN (8) buttons, move the upper horizontal bar relative to the lower fixed bar until the object fits entirely between the two bars. The distance to the object is automatically recalculated as you move the upper line.
5. Exit the rangefinder mode with a long press of the MENU (9) button or wait 10 seconds to exit automatically.

Notes:

• There are three predefined values for the reference objects: Hare – 0.3 m height, Boar – 0.7 m height, Deer – 1.7 m height.
• Before it appears on the display, a measured distance value is rounded up to 5m for larger values and rounded down to 1m for smaller values.
• To select the unit of measurement (Meters or Yards), go to the General Settings  menu item => Units of Measure  submenu.

Using a tripod adapter

1. Attach the tripod adaptor (17) to the socket (18).
2. Screw the adapter wheel (28) clockwise until it stops.
3. Secure the adaptor with the device on a tripod.

Using an IR illuminator

1. Install the IR illuminator on the device.
2. Screw the tripod adapter platform to the hole in the tripod screw (27).
3. Install the device with the platform on a tripod.

1. Connect one end of the USB cable to the USB Type-C (17) connector of the device, the other one to the port on your computer using a USB Type-A adapter.
2. Turn the device on with a short press of the ON/OFF (4) button (device that has been turned off cannot be detected by your computer).
3. Your device will be detected by the computer automatically; no drivers need to be installed.
4. Two connection modes will appear on the image: Power and Memory Card (external memory).
5. Select connection mode with UP (7)/DOWN (8) buttons.
6. Confirm selection with a short press of the MENU (9) button.

Power

• In this mode, when a computer is used as an external power supply, the icon  appears in the status bar. The device will continue operating and all functions are available.
• The Battery pack installed in the device is not being charged!
• A battery recharge feasibility depends on your computer’s USB port.

Memory Card

• In this mode the device is detected by the computer as a flash card.
• This mode is designed for work with the files saved in device’s memory. The device’s functions are not available in this mode; the device turns off automatically.
• If video recording was in progress when connection was made, recording stops and video is saved.

USB Disconnection

• When the USB is disconnected from the device connected as the Power mode, the device continues operating from the rechargeable batteries if they are sufficiently charged.
• If the device is in Memory Card mode and is disconnected from USB, the device will remain on.

Install the Stream Vision 2 application to download files, update firmware, control the device by remote control and broadcast images from your device to a smartphone or a tablet via WiFi.

We recommend using the latest version – Stream Vision 2.

You can find further guidelines on Stream Vision 2 here.

Download from Google Play

Download from App Store

Find answers to frequently asked questions about using Stream Vision 2 here.

1. Download the free Stream Vision 2 App in Google Play or App Store.
2. Connect your Pulsar device to your mobile device (smartphone or tablet).
3. Launch Stream Vision 2 and go to section “Settings”.
4. Select your Pulsar device and press “Check firmware update”.
5. Wait for the update to download and install. Pulsar device will reboot and will be ready to operate.

Important:

• if your Pulsar device is connected to a phone or mobile device, please turn on mobile data transfer (GPRS/3G/4G) to download update;
• if your Pulsar device is not connected to your phone or mobile device but is already listed in “Settings” > “My devices” section, you may use Wi-Fi to download update.

Find answers to frequently asked questions about using Stream Vision 2 here.

Is your firmware up to date?

Click here to check the latest firmware for your device.

It is recommended to inspect your device before each use. Check the following:

• The device should be free of any cracks or deformations.
• The lenses should be free of cracks, grease, dirt or debris.
• The battery level of the device should be full. Electrical sockets should be free of salts, oxidation, or other debris.
• All controls should be responsive.

Maintenance should be carried out at least twice a year and should include the following steps:

• Wipe the exterior surfaces of metal and plastic parts with a cotton cloth. Do not use chemically active substances, solvents, etc. as these will damage the paint.
• Clean the electric terminals of the Battery Pack and device’s battery slot using a grease-free organic solvent.
• Check the lenses of the eyepieces and objectives. If necessary, remove dust and sand from the optics (it is preferable to use a non-contact method). Cleaning of the exterior surfaces of the optics should be done with cleaners designed especially for this purpose.

• Always store the device in its carrying case in a dry, well-ventilated space.
• Remove the Battery Pack for long-term storage.