Introduction
Thank you for purchasing the Uni-Com S/Chime Portable Door Chime 66705. This device is designed to provide a convenient and reliable alert when someone is at your door. This manual provides essential information for the proper setup, operation, and maintenance of your new door chime to ensure optimal performance and longevity.
Safety Information
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Keep the device away from water and other liquids.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Dispose of the product and any batteries responsibly according to local regulations.
Package Contents
Please check the package contents to ensure all items are present:
- 1 x Uni-Com S/Chime Portable Door Chime Receiver
- 1 x Doorbell Push Button Transmitter

Image: The Uni-Com S/Chime Portable Door Chime receiver unit and the separate push button transmitter unit, both in white.
Setup
The Uni-Com S/Chime Portable Door Chime is designed for easy setup. This model operates on AC power, meaning it plugs directly into a wall outlet, eliminating the need for batteries in the receiver unit.
1. Powering the Receiver
- Locate a suitable indoor AC power outlet where you wish to hear the chime.
- Plug the Uni-Com S/Chime receiver unit directly into the power outlet. Ensure it is securely seated.
2. Installing the Push Button Transmitter
The push button transmitter is typically battery-operated (batteries not included, please check product packaging for specific battery type if required for the push button). It can be mounted near your door.
- Choose a flat, clean surface near your entrance door for mounting the push button.
- Use the provided screws or adhesive tape to securely attach the push button to the chosen surface. Ensure it is within range of the receiver unit.

Image: The Uni-Com S/Chime Portable Door Chime receiver and push button, superimposed on a background of houses, illustrating typical placement.
Operating
Once the receiver is plugged in and the push button is installed, your door chime system is ready for use.
Triggering the Chime
- Press the button on the doorbell transmitter.
- The receiver unit will sound the selected chime melody.
Placement for Optimal Performance
For best results, place the receiver unit in a central location within your home where the chime can be easily heard. Avoid placing it near large metal objects or other electronic devices that may cause interference.

Image: The Uni-Com S/Chime Portable Door Chime receiver unit placed on a wooden surface indoors, next to a clock and a decorative lantern, demonstrating typical indoor placement.

Image: The Uni-Com S/Chime Portable Door Chime receiver unit placed on an outdoor wooden table, with garden foliage and a glass in the background, highlighting its portability and potential for outdoor use (receiver must be indoors and powered).
Maintenance
Regular maintenance will help prolong the life of your door chime.
Cleaning
- Wipe the surfaces of both the receiver and push button with a soft, dry cloth.
- Do not use abrasive cleaners, solvents, or harsh chemicals.
Battery Replacement (Push Button)
If the push button transmitter stops working or its range decreases, the battery may need replacement. Refer to the specific battery type indicated on the push button unit or its packaging.
- Carefully open the battery compartment on the back of the push button transmitter.
- Remove the old battery and insert a new one, ensuring correct polarity (+/-).
- Close the battery compartment securely.
Troubleshooting
If you encounter issues with your Uni-Com S/Chime, try the following solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chime does not sound. | Receiver not powered. | Ensure the receiver is securely plugged into a working AC outlet. |
| Chime does not sound. | Push button battery is dead. | Replace the battery in the push button transmitter. |
| Chime does not sound. | Out of range or interference. | Move the receiver closer to the push button. Avoid placing near large metal objects or other electronics. |
| Chime sounds intermittently. | Weak push button battery. | Replace the battery in the push button transmitter. |
| Chime sounds intermittently. | Environmental interference. | Relocate the receiver or push button to a different position. |
Specifications
- Model: UNC66705
- Manufacturer: Uni-Com
- Part Number: 013979
- Product Dimensions: 4.7 x 13.4 x 13.7 cm
- Item Weight: 160 g
- Power Source: AC (for receiver unit)
- Item Package Quantity: 1
- Included Components: S/CHIME PORT DOOR CHIME 66705 (Receiver and Push Button)
- Batteries Included: No (for receiver), check push button for specific battery requirements.
- Batteries Required: No (for receiver), Yes (for push button, type not specified in provided data).
Warranty
This product is covered by a standard manufacturer's warranty. Please retain your proof of purchase for any warranty claims. For specific warranty terms and conditions, refer to the documentation included with your purchase or contact Uni-Com customer support.
Support
If you require further assistance or have questions not covered in this manual, please contact Uni-Com customer support. You can typically find contact information on the product packaging or the official Uni-Com website.




