1. Introduction
The PHYSEN Wireless Doorbell Kit provides a reliable and convenient solution for homes, offices, and other environments. Featuring a wide operating range, multiple melodies, and durable, weather-resistant design, this system ensures you never miss a visitor. It is also ideal for assisting the elderly or patients.

Image: The PHYSEN Wireless Doorbell Kit, showing four plug-in receivers and two push-button transmitters.
2. Product Overview
2.1 Components
- 4 x Plug-in Receivers
- 2 x Push-button Transmitters
- Mounting hardware (screws, wall plugs, adhesives)
- 1 x 23A 12V Alkaline Battery (pre-installed in transmitter)
2.2 Key Features
- Extended Range: Operates up to 400 meters (1,312 feet) in open areas, ensuring a strong and stable signal.
- Weatherproof Design: IP55 waterproof and dustproof transmitter, functional between -20°C and 60°C (-4°F to 140°F).
- Melody & Volume Options: 58 selectable melodies and 5 adjustable volume levels (0 dB to 110 dB).
- Sound Modes: Two modes available: silent (LED light only) or LED + sound.
- Memory Function: Remembers the last selected melody and volume setting after a power outage.
- Long Battery Life: Transmitter battery (23A 12V) lasts up to 3 years.

Image: Illustration of the doorbell's features, including 58 melodies, 5 volume levels, mute mode, and LED indicator.

Image: Demonstrates the IP55 waterproof and dustproof rating, showing the doorbell functioning in various weather conditions and its operating temperature range.

Image: Visual representation of the doorbell's 400-meter wireless range, showing signal penetration through various obstacles like walls and doors.
3. Setup Instructions
Installation of the PHYSEN Wireless Doorbell is straightforward and requires no complex wiring.
- Receiver Placement: Plug each receiver into a standard electrical outlet in your desired locations within your home or office. Ensure they are within the effective range of the transmitter.
- Transmitter Mounting:
- Using Adhesives: Clean the mounting surface thoroughly. Peel off the protective film from the adhesive pad and firmly press the transmitter onto the desired outdoor wall location.
- Using Screws: Mark the desired mounting points on the outdoor wall. Drill pilot holes, insert the provided wall plugs, and then secure the transmitter using the screws.
- Initial Test: Press the transmitter button to confirm that the receivers ring and the LED indicator lights up.

Image: Step-by-step visual guide for easy installation of the doorbell transmitter on a wall.
4. Operating Instructions
Customize your doorbell experience with various melody and volume settings.
4.1 Changing Melodies
- On the receiver, locate the "Forward" and "Backward" buttons (often indicated by arrow icons).
- Press the "Forward" or "Backward" button to cycle through the 58 available melodies. The receiver will play a preview of each melody as you select it.
- Once you find your preferred melody, stop pressing the buttons. The doorbell will remember this selection.
4.2 Adjusting Volume
- On the receiver, locate the volume control button (often indicated by a speaker icon).
- Press the volume button repeatedly to cycle through the 5 available volume levels, from 0 dB (mute) to 110 dB (maximum).
- Select the volume level that best suits your needs. The doorbell will retain this setting.
4.3 Selecting Sound Mode
- The doorbell offers two modes:
- LED + Sound: The standard mode where the receiver rings and the LED indicator flashes.
- Silent (LED Only): The receiver will only flash its LED indicator without producing any sound. This is useful for quiet environments or when you don't want to disturb others.
- Refer to your receiver's specific buttons for mode selection, typically a dedicated mode button or a long press on the volume button.

Image: Detailed view of the receiver and transmitter, highlighting the volume buttons, LED indicator, music selection button, plug-in receiver, and high-quality speaker.
5. Maintenance
5.1 Battery Replacement (Transmitter)
The transmitter is powered by a 23A 12V alkaline battery, designed to last up to 3 years. When the transmitter's LED indicator no longer lights up or the signal becomes weak, it's time to replace the battery.
- Carefully open the transmitter casing.
- Remove the old 23A 12V battery.
- Insert a new 23A 12V alkaline battery, ensuring correct polarity (+/-).
- Close the transmitter casing securely.
5.2 Cleaning
Wipe the doorbell units with a soft, dry cloth. Do not use abrasive cleaners or immerse the units in water.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Receiver does not ring when transmitter is pressed. |
|
|
| Melody or volume settings reset. | Power outage or receiver unplugged for an extended period. | The doorbell has a memory function; settings should persist. If not, re-select your preferred melody and volume. |
| Weak or inconsistent signal. | Thick walls, metal structures, or other interference. | Try repositioning the receiver or transmitter to minimize obstructions. |
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | PHYSEN |
| Model Number | CWP-2T4 |
| Product Dimensions | 19.1 x 9.2 x 10.9 cm; 490 grams |
| Transmitter Battery | 1 x 23A 12V Alkaline (included) |
| Wireless Range | Up to 400 meters / 1,312 feet (open area) |
| Waterproof Rating | IP55 (Transmitter) |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Melodies | 58 selectable |
| Volume Levels | 5 levels (0 dB to 110 dB) |
| Components Included | 2 Transmitters, 4 Receivers |
| ASIN | B0CRKX8MTW |
| First Available Date | March 21, 2024 |

Image: Diagram showing the precise dimensions of both the receiver and the transmitter units.
8. Warranty and Support
For any questions, technical support, or warranty claims, please contact PHYSEN customer service. Refer to the product packaging or the official PHYSEN website for the most up-to-date contact information.
Online Support: Visit the PHYSEN Store on Amazon for product information and support resources.


