Introduction
Thank you for choosing the PHYSEN Wireless Doorbell Kit. This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your new doorbell system. Please read this manual thoroughly before use to ensure proper functionality and longevity of your product.
This kit includes 2 wireless doorbell transmitters and 3 plug-in smart doorbell receivers, along with double-sided mounting tape, anchors, screws, and an A23 battery for the transmitter.

Image: The PHYSEN Wireless Doorbell Kit, showing two black rectangular transmitters and three black square receivers with blue LED rings.
Setup
1. Transmitter Installation
- Ensure the A23 battery is correctly inserted into the transmitter.
- Choose a suitable location for your transmitter, typically near your front door.
- Clean the surface thoroughly before installation.
- You can install the transmitter using either the provided double-sided adhesive tape or screws. For a more secure and permanent installation, screws are recommended.
2. Receiver Setup
- Plug the receiver into any standard electrical outlet within your home.
- For optimal performance, place receivers strategically throughout your home to ensure you can hear the chime from any location. The system boasts a wireless range of over 1300ft (400m) in open space.

Image: An aerial view diagram of a house layout, illustrating how multiple receivers can be placed in different rooms to ensure the doorbell chime is heard throughout the entire home, covering up to 1300ft.
3. Pairing Transmitters and Receivers
Your doorbell kit comes pre-paired. However, if you need to re-pair or add new components, follow these steps:
- Plug the receiver into a power outlet.
- Press and hold the 'Down' button and 'Volume' button on the receiver simultaneously for approximately 5-7 seconds until you hear a 'ding' sound and the blue LED light flashes. This indicates the receiver is in pairing mode.
- Immediately press the button on the transmitter you wish to pair. The receiver will ring and flash, confirming successful pairing.
- Repeat for each transmitter and receiver if you are pairing multiple units or customizing ringtones for specific transmitters.
Video: How to Pair the PHYSEN Wireless Doorbell. This video demonstrates the step-by-step process of pairing a PHYSEN wireless doorbell transmitter with its receiver, including entering pairing mode and confirming successful connection.
4. Adding More Transmitters/Receivers
The PHYSEN wireless doorbell system is expandable. You can add more transmitters or receivers as needed by following the pairing instructions above.
Video: How to add more transmitters. This video illustrates the process of adding additional transmitters to your existing PHYSEN wireless doorbell system, ensuring multiple entry points can trigger the chime.
Video: How to add more receivers. This video demonstrates how to integrate additional receivers into your PHYSEN wireless doorbell setup, expanding the chime's reach throughout your property.
Operating
1. Changing Ringtones
The receiver features 58 selectable chimes. To change the ringtone:
- Plug the receiver into a power outlet.
- Press the 'Music' button (up or down arrow) on the side of the receiver to cycle through the available melodies.
- Once you find your desired ringtone, it will be saved automatically.
Video: How to choose your favorite ringtone. This video demonstrates how to easily cycle through and select your preferred ringtone from the 58 available options on the PHYSEN wireless doorbell receiver.

Image: A collage highlighting the versatility of the 58 chimes, suitable for various situations such as not disturbing a sleeping baby, alerting to visitors, and providing a pleasant sound for a family at home.
2. Adjusting Volume and Mute Mode
The receiver offers 5 adjustable volume levels, ranging from 0 dB (mute) to 110 dB.
- Press the 'Volume' button on the side of the receiver to cycle through the volume levels.
- Continue pressing until you reach your desired volume or the mute mode (0 dB).
- The bright LED flash is suitable for the elderly and hearing impaired, providing a visual alert even in mute mode.

Image: A family enjoying their living room, with the PHYSEN doorbell receiver visible, illustrating how the loud chime and bright LED flash ensure no visitor is missed, even in a busy household.
3. Customizing Individual Transmitters
You can configure different ringtones for different transmitters (e.g., front door vs. back door) to easily distinguish where a visitor is located.
- First, select the desired ringtone on the receiver as described in 'Changing Ringtones'.
- Then, put the receiver into pairing mode (hold 'Down' and 'Volume' buttons).
- Finally, press the specific transmitter button you want to associate with that ringtone.

Image: A visual guide demonstrating the ability to customize individual transmitters, allowing users to set different music ringtones for their front and back doors, enhancing awareness of visitor location.
Maintenance
1. Battery Replacement (Transmitter)
The transmitter uses an A23 battery, which typically has a long lifespan. When the transmitter's performance degrades or it stops working, it's time to replace the battery.
- Carefully remove the protective film from the transmitter if present.
- Use a small screwdriver to open the rear cover of the transmitter.
- Remove the old A23 battery and insert a new one, ensuring correct polarity.
- Securely close the back cover.

Image: A detailed four-step guide on how to easily change the battery in the PHYSEN wireless doorbell transmitter, showing the tools and process involved.
2. Waterproof and Weatherproof Features
The doorbell transmitter is designed with strong IP55 waterproof functionality, allowing it to operate reliably in various weather conditions.
- Operating Temperature: -4°F to 140°F (-20°C to 60°C).
- While designed for outdoor use, avoid submerging the transmitter in water.
- Regularly wipe down the transmitter to remove dirt or debris that may accumulate.

Image: The PHYSEN doorbell transmitter shown in a winter setting, emphasizing its IP55 waterproof and weatherproof capabilities, along with its wide operating temperature range and 3-year battery lifespan.
Troubleshooting
If you encounter issues with your PHYSEN Wireless Doorbell Kit, please refer to the following common solutions:
- Doorbell Not Ringing:
- Check if the receiver is properly plugged into a working power outlet.
- Ensure the transmitter battery is not depleted. Replace if necessary (refer to Maintenance section).
- Re-pair the transmitter and receiver (refer to Setup section, 'Pairing Transmitters and Receivers').
- Ensure the receiver is not in mute mode (0 dB volume level). Adjust volume if needed.
- Short Wireless Range:
- Obstacles like thick walls, metal structures, or other electronic devices can interfere with the signal. Try relocating the receiver or transmitter.
- Ensure there are no large metal objects directly between the transmitter and receiver.
- Unwanted Chimes:
- This can sometimes occur due to signal interference. Try re-pairing the units to establish a fresh, secure connection.
- Ensure the transmitter button is not stuck in a depressed position.
- Difficulty Pairing:
- Make sure the receiver is in pairing mode (blue LED flashing).
- Press the transmitter button immediately after the receiver enters pairing mode.
- Ensure the transmitter battery is not low.
Specifications
| Feature | Detail |
|---|---|
| Model Number | CWUSW-2T3-004 |
| Wireless Range | Up to 1300ft (400m) in open space |
| Ringtones | 58 Chimes |
| Volume Levels | 5 Levels (0 dB to 110 dB) |
| Waterproof Rating | IP55 (Transmitter) |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Power Source (Receiver) | AC 120 Volts |
| Battery (Transmitter) | 1 x A23 battery (included) |
| Material | ABS |
| Item Weight | 14.9 ounces |
| Product Dimensions | 1.97 x 3.94 x 1.97 inches |

Image: A visual representation of the compact size of both the PHYSEN receiver and transmitter, indicating that the receiver is designed not to block adjacent electrical outlets.
Warranty and Support
Warranty Information
While specific standard warranty details are not provided in this manual, extended protection plans may be available for purchase. Please refer to your point of purchase or the PHYSEN brand store for details on available protection plans.
- 3-Year Protection Plan
- 4-Year Protection Plan
- Complete Protect (monthly plan)
Customer Support
For further assistance, product inquiries, or technical support, please utilize the following resources:
- Official User Manual (PDF): Download PDF Manual
- PHYSEN Brand Store: Visit the official PHYSEN Store on Amazon for more products and information.

