Indledning
Thank you for choosing the AVANTEK CW-21 Wireless Doorbell. This device is designed to provide a reliable and convenient notification system for your home or office. Featuring a waterproof transmitter, long wireless range, and customizable melodies, this doorbell ensures you never miss a visitor. Please read this manual carefully to ensure proper installation and operation.
Pakkens indhold
Bekræft at alle komponenter er til stede i din pakke:
- 1 × Plug-in Receiver
- 2 × Wireless Transmitters
- 2 × Double-sided Adhesive Tapes
- 1 × Skruetrækker
- 4 × skruer
- 4 × Ankre
- 1 × Brugermanual (dette dokument)

Image: Contents of the AVANTEK CW-21 Wireless Doorbell kit, showing the receiver, two transmitters, mounting hardware, and user manual.
Opsætning og installation
The AVANTEK CW-21 doorbell offers flexible installation options for the transmitter and simple setup for the receiver.
Opsætning af modtager
- Plug the receiver into a standard electrical outlet. Ensure it is placed in a central location to maximize wireless range.
- The receiver will power on and be ready for operation.
Transmitter Installation
Before installation, ensure the transmitter's battery is active. The transmitter uses a lithium battery with a maximum lifespan of 3 years. No battery installation is typically required upon initial setup as it comes pre-installed with a protective tab that needs to be removed.
There are two methods for mounting the transmitter:
Metode A: Brug af dobbeltklæbende tape
- Clean the mounting surface thoroughly to ensure it is free of dust and moisture.
- Fjern den ene side af beskyttelsesfilmen fra den dobbeltklæbende tape, og fastgør den på bagsiden af senderen.
- Peel off the other side of the protective film and firmly press the transmitter onto the desired location on the wall or door frame for at least 30 seconds.
Method B: Using Screws and Anchors
- Åbn senderen casing using the provided screwdriver.
- Mark the desired drilling points on the wall using the transmitter's back plate as a template.
- Drill two holes at the marked positions. Insert the anchors into the holes.
- Align the transmitter's back plate with the holes and secure it with the screws.
- Reattach the front casing of the transmitter.

Image: Installation instructions diagram illustrating both adhesive tape and screw/anchor mounting methods for the transmitter.
Betjeningsvejledning
The AVANTEK CW-21 doorbell system is designed for user-friendly operation with customizable settings.
Melodivalg
The receiver offers 52 distinct melodies. To change the melody:
- Press the 'Music' button on the side of the receiver to cycle through the available melodies.
- Once you hear a desired melody, stop pressing the button. The receiver will automatically save this selection.
Lydstyrkejustering
The receiver has 5 adjustable volume levels, with a maximum setting of 115 dB. To adjust the volume:
- Press the 'Volume' button on the side of the receiver to cycle through the volume levels.
- Select the desired volume level. The receiver will save this setting.

Image: The receiver unit highlighting its features: 52 chimes and tunes, 5 volume levels, and an LED indicator.
Customizing Transmitters with Different Tones
You can assign a unique melody to each transmitter, allowing you to differentiate between multiple entry points (e.g., front door, back door).
- Select the desired melody on the receiver using the 'Music' button.
- Immediately after selecting the melody, press and hold the 'Volume' button on the receiver for approximately 5 seconds until you hear a 'ding' sound and the LED indicator flashes rapidly. This indicates pairing mode.
- Within 5 seconds, press the button on the specific transmitter you wish to pair with this melody. The receiver will sound the selected melody, confirming successful pairing.
- Repeat this process for each additional transmitter, selecting a different melody for each if desired.

Image: Diagram showing how to assign different tones to individual transmitters for distinct notifications (e.g., front door vs. back door).
Hukommelsesfunktion
The receiver is equipped with a memory function. It will remember your last selected melody and volume level even after a power outage, eliminating the need to reset your preferences.
Opretholdelse
Rensning
Wipe the doorbell units with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the surface. The transmitter has an IP55 dustproof and waterproof rating, meaning it is protected against dust ingress and low-pressure water jets from any direction. However, it is not designed for submersion.
Battery Replacement (Transmitter)
The transmitter uses a CR2 lithium battery, which typically lasts up to 3 years. When the transmitter's performance degrades or the LED indicator no longer flashes upon pressing, it's time to replace the battery.
- Åbn senderen casing using the provided screwdriver.
- Fjern forsigtigt det gamle CR2-batteri.
- Isæt et nyt CR2-batteri, og sørg for at polariteten (+/-) vender korrekt.
- Close the transmitter casing sikkert.

Image: The transmitter unit, highlighting its IP55 waterproof rating, operating temperature range, and 3-year battery lifespan.
Fejlfinding
If you encounter issues with your AVANTEK CW-21 doorbell, refer to the following common solutions:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Receiver does not sound when transmitter is pressed. |
|
|
| Kort trådløs rækkevidde. |
|
|
| Melody or volume settings reset. | Not applicable, as the unit has a memory function. If this occurs, contact support. | Contact AVANTEK customer support for assistance. |
Specifikationer
Key technical specifications for the AVANTEK CW-21 Wireless Doorbell:
- Model: CW-21
- Trådløs rækkevidde: Up to 1000 ft (300 m) in open areas
- Melodier: 52 valgbare klokker
- Lydstyrkeniveauer: 5 adjustable levels (max 115 dB)
- Sendereffekt: 3V CR2 Lithium Manganese Dioxide battery
- Transmitter Lifespan: Up to 3 years (battery dependent)
- IP Rating (Transmitter): IP55 (støvtæt og vandtæt)
- Driftstemperatur: -4 °F til 140 °F (-20 °C til 60 °C)
- Modtagerens dimensioner: Approximately 3.15 in (H) x 2.87 in (W) x 0.6 in (D)
- Senderens dimensioner: Approximately 3 in (H) x 1.57 in (W) x 0.6 in (D)

Image: The AVANTEK CW-21 doorbell system illustrating its 1000 ft (300 m) wireless range capability.

Image: Dimensions of the compact receiver and transmitter units, showing they do not obstruct adjacent outlets.
Garanti og support
AVANTEK products are designed for reliability and performance. For any questions, technical support, or warranty inquiries, please contact AVANTEK customer service. Refer to the contact information provided on the product packaging or the official AVANTEK webwebsted.
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