1. Introduction
Thank you for choosing the SCS Sentinel ElektroBell Wired Chime CFI0025. This electromechanical wired chime is designed for reliable operation with an integrated 230V transformer and offers 8 selectable melodies. This manual provides essential information for the safe installation, operation, and maintenance of your new chime.

Image 1.1: The SCS Sentinel ElektroBell Wired Chime CFI0025. This image displays the front view of the white, square-shaped chime unit, featuring the 'SCS Sentinel' logo at the bottom.
2. Product Overview
2.1. Package Contents
The package for your ElektroBell Wired Chime CFI0025 includes the following components:
- ElektroBell Chime Unit with integrated 230V transformer
- Mounting screws and wall plugs
- Installation and user manual

Image 2.1: Package contents of the ElektroBell chime. This image shows the side of the product packaging, illustrating the chime unit, mounting screws, and the instruction manual as included items.
2.2. Key Features
- Wired Connection: Ensures reliable communication with your doorbell push button.
- Integrated 230V Transformer: Direct connection to mains power.
- 8 Melodies: Choose from a selection of pleasant chime sounds.
- High Sound Quality: Produces an 80 dB/A sound level.
- Durable Design: Constructed with a robust white ABS plastic casing.
- Compact Dimensions: 116 mm (L) x 116 mm (H) x 48 mm (D).
3. Setup and Installation
3.1. Safety Warnings
Installation must be performed by a qualified electrician or competent person. Always disconnect the main power supply before commencing any electrical work to prevent electric shock.
3.2. Mounting the Chime
- Choose a suitable indoor location for the chime, away from moisture and direct heat sources.
- Mark the desired mounting points on the wall using the chime unit as a template.
- Drill holes at the marked points and insert the provided wall plugs.
- Secure the chime unit to the wall using the provided screws.

Image 3.1: The ElektroBell chime mounted on a wall. This image shows the white chime unit securely installed on a textured wall surface, demonstrating its discreet and elegant integration into an interior space.
3.3. Wiring Instructions
The ElektroBell chime requires a 230V AC power supply and connects to a low-voltage doorbell push button. Refer to the wiring diagram below for correct connections.

Image 3.2: Detailed wiring diagram for the ElektroBell chime. This diagram illustrates the electrical connections: 230V mains input (1.5 mm² wires) to the chime, and 5V output (0.5 mm² wires) to the doorbell push button. It also highlights the non-polarity requirement for the push button connection.
- 230V Power Connection: Connect the 230V mains power supply to the designated terminals on the chime unit. Use wires with a cross-section of 1.5 mm². Ensure proper insulation and secure connections.
- Doorbell Push Button Connection: Connect your low-voltage doorbell push button to the chime's 5V output terminals. Use wires with a cross-section of 0.5 mm². The connection to the push button is non-polarized, meaning the wires can be connected in either orientation.
- Compatibility: This chime is compatible with all SCS Sentinel low-voltage push buttons.
- Once all connections are made and secured, restore the main power supply.
4. Operating Instructions
4.1. Melody Selection
The ElektroBell chime offers 8 distinct melodies. To select a melody, locate the melody selection button or switch inside the chime unit (refer to the internal diagram if available in the physical manual). Pressing this button will cycle through the available melodies. Stop at your preferred sound.
4.2. Sound Level
The chime produces a sound level of 80 dB/A, ensuring it is clearly audible throughout your home or workplace.
5. Maintenance
The SCS Sentinel ElektroBell Wired Chime requires minimal maintenance. Follow these guidelines:
- Cleaning: Wipe the exterior of the chime with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check the wiring connections to ensure they remain secure.
- Environment: Ensure the chime is not exposed to excessive moisture or extreme temperatures.
6. Troubleshooting
If you encounter issues with your ElektroBell chime, consider the following common problems and solutions:
- No Sound:
- Check if the main power supply to the chime is active.
- Verify all wiring connections are secure and correct, especially the 230V input and the 5V connection to the push button.
- Ensure the doorbell push button is functioning correctly.
- Intermittent Sound:
- Inspect wiring for loose connections or damaged insulation.
- Ensure the push button is not sticking or faulty.
- Distorted Sound:
- This is rare for electromechanical chimes. If it occurs, contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | CFI0025 |
| Brand | SCS Sentinel |
| Power Supply | Integrated 230V Transformer |
| Output Voltage (for push button) | 5V |
| Melodies | 8 selectable |
| Sound Level | 80 dB/A |
| Dimensions (L x H x D) | 116 mm x 116 mm x 48 mm |
| Material | White ABS Plastic |
| Indoor Use | Yes |
| Country of Origin | China |
8. Warranty and Support
8.1. Manufacturer's Warranty
The SCS Sentinel ElektroBell Wired Chime CFI0025 comes with a 2-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
8.2. Technical Support
For technical assistance, installation guidance, or any product-related inquiries, please contact SCS Sentinel customer support. Our technical team is available to provide expert and personalized advice.
You can find more information and contact details on the official SCS Sentinel website: www.scs-sentinel.com/contact
8.3. Recycling Information
This product should not be disposed of with household waste. Please dispose of it at an appropriate collection point for the recycling of electrical and electronic equipment. Look for the crossed-out wheeled bin symbol on the product or packaging.

Image 8.1: Recycling and contact information. This image shows the recycling symbol (crossed-out wheeled bin) and indicates that the product should be sorted for recycling. It also provides the SCS Sentinel contact website: www.scs-sentinel.com/contact.