User Manual

Download the Tarken mobile app:

Installation: steps 1–8

1. Turn the window handle to the horizontal (open) position. Rotate the handle cover until both screws are visible.

2. Remove both screws and the original handle.

Important: Keep the screws—you will reuse them to install Tarken.

3. Open Tarken’s screw cover: press and pull the tab to the side, then gently remove the cover outward.

4. Position Tarken on the window. Align its screw holes with the window holes and keep the back of the device flat against the frame.

Important: Match the device orientation to the direction in which your window opens.

5. Insert the screws removed in step 2. Tighten both screws clockwise until Tarken sits firmly and evenly against the window.


6. Reattach Tarken’s screw cover by inserting the retaining pins into the matching holes, then press on the tab so the cover clicks into place.


7. Mounting the anchor - the anchor connects Tarken to the window frame.

  1. Press the button on top of the anchor and attach it to the device hook on the back of Tarken. This shows exactly where the anchor must sit on the frame.
  2. Clean the frame with the supplied wipe and let it dry completely.
  3. Remove the protective film from the anchor’s adhesive pad.
  4. Keep the anchor vertical and gently close the window until the pad touches the frame. 4.1. If neccessary move the hook by manually adjusting position.
  5. Press the anchor firmly against the frame. Important: wait 15 minutes before operating Tarken to let the glue cure. (1)

(1) On rough surfaces, secure the anchor with a countersunk screw through its center.



8. This is what Tarken looks like, with the window closed, after successful installation.


Charging & sensor behavior

Connect a 5 V USB source to the side USB-C port. Yellow LED = charging; off = full. Charge at least every two years. Temperature may read higher during charging.

Sensor readings update every 15 minutes.

User manual

Tarken has three buttons on the front panel. By pressing these buttons, Tarken opens and closes the window.

Turn on: hold the center (2) button for 3 seconds. The blue LED will start blinking.

Turn off: hold the center button (2) for 10 seconds. The red LED will blink when the device powers down.

  • Clicking upper button (1) will open the window for to top-open position
  • Clicking center button (2) will release the window
  • Clicking lower button (3) will close the window

Pressing any button during operation will stop the movement immediately.

Open the window fully:

1. Press the middle button (2); wait until Tarken pushes the sash slightly open.

2. Hold the anchor button, then pull the window open by hand.

Reconnect and close:

1. Hold the anchor button and guide Tarken’s hook into the anchor.

2. Release the anchor button, then press Close (3).

Application guide

Download the Tarken app from Google Play or the App Store.

Pair Tarken with the app:

1. Turn Tarken on. Pairing is active for 1 minute while the blue LED blinks.

2. Open the Tarken app.

3. Tap the gear icon, then Scan for devices.

4. Follow the on-screen instructions.

If the LED is not blinking, restart Tarken by turing it off and on again.

App view

  1. Reconnect last device (shown only when disconnected)
  2. Release window
  3. Settings: connect a new device, move the window manually, choose advanced options (1)
  4. Automatic mode – move the window based on: temperature, humidity, CO₂ / air quality
  5. Timer mode – set the window movement according to a schedule

(1) Under settings view you can:

Disable fully tilting - during opening window will be tilted minimally

Disable spindle - window locking will be disabled for quiet operation

Disable buttons - physical buttons on device will be disabled (child lock)




Adding to the Matter network

Restart the device and scan the QR code located inside the screw cover using your Matter-compatible app. Follow the on-screen instructions. During commissioning, the Bluetooth connection through the Tarken app must be disconnected.

Please note that controlling the device via the Matter network will disable any Auto or Timer modes previously set up in the Tarken app.

Special cases

Position adjustment

Note: This is required only if the Tarken’s moving arm or spindle is not aligned with your window during installation.

Press & hold center button (2) for 3 seconds - Tarken will go into manual adjusting mode (red LED turns on). Then by holding down arrows (1) or (2), Tarken’s moving arm distance to the anchor can be adjusted.
Press center button (2) again to go into spindle adjusting mode (blue LED turns on), where by holding down (1) or (3) Tarken will turn it’s spindle. Use this to adjust Tarken to match your window. Press (2) again to return to regular mode (LED-s off).

Factory reset

To perform a factory reset, first power off Tarken.
Factory reset: Hold down (1) & (3) and press central button (2) once, keep holding (1) & (3) for 3 seconds. The blue and red LED-s will blink, which means the factory reset has been done. All saved Matter and Bluetooth connections will be deleted.

Reverse spindle direction

NB! This is required only for windows that have a handle positioned at the top center. When the handle is located on the side of the window, the direction is detected automatically.

To reverse spindle direction, first turn Tarken off.
Hold down only one arrow key (1) and press central button (2) once, then keep holding (1) for 3 seconds. The blue LED will blink, which means the spindle turning direction has been reversed.

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