Bell System Speech Unit (Model 51)
£70.00
Part of the Bell System product range this unit is generally required as a replacement unit for older systems or for SPA panels above 10 buttons. The unit provides two-way speech and has an individual volume control for both microphone and speaker. This universal product can be powered from either 12V AC or 12V DC depending on the model of telephone used.
Description
Bell System Speech Unit (Model 51)
The Bell System Model 51 Speech Unit is a dependable two-way audio module designed as a direct replacement for older Bell System installations or for use with SPA entrance panels featuring more than 10 buttons. This versatile unit ensures clear communication between the entrance panel and internal handsets, maintaining the performance and reliability of your door entry system.
Equipped with individual volume controls for both the microphone and speaker, the Model 51 allows installers to fine-tune audio clarity to match the environment. Its universal compatibility enables operation on either 12V AC or 12V DC, depending on the telephone model in use.
Part of the trusted Bell System product range, the Model 51 is the ideal choice for upgrading or maintaining legacy systems in residential and commercial buildings.
Key Features:
- Two-way speech unit for door entry panels with more than 10 buttons
- Direct replacement for older Bell System models
- Adjustable microphone and speaker volume
- Operates on 12V AC or 12V DC
- Reliable, easy-to-install design
Additional Information
| Dimensions | 13.6 × 8.1 × 3 cm |
|---|---|
| Manufacturer | Bell System |
