| Features | Belle | Decibell E | Deltabell E | Deltabell Plus | Deltabell X |
| Fully backlit base |  | | |  | |
| Piezo sounders with high decibel output | | | | | |
| 3 Way tamper action | | | | | |
| Positive/Negative trigger inputs | | | | | |
| Universal triggering inputs | | | | | |
| Revolving guide holes | | | | | |
| Supplied with battery | | | | | |
| Siren cut-off timer | | | | | |
| 3mm Poly housing | | | | | |
| Engineer hold off facility | | | | | |
| Remote engineer hold off | | | | | |
| Twin piezo | | | | | |
- Control Panels: Wireless
- Control Panels: PCX
- Control Panels: Matrix
- Control Panels: Sterling
- Detectors: Confirmed
- Detectors: Anti Mask
- Detectors: Dual Tech
- Detectors: KX Analogue PIR
- Detectors: KX Digital PIR
- Detectors: Ceiling PIR
- Detectors: Analogue PIR
- Detectors: Pet Immune
- Detectors: External
- Detectors: Breakglass
- External Sounders
- Deltabell X Lightbox
- Deltabell X
- Deltabell Plus
- Deltabell E
- Belle
- Decibell E
- Speech Diallers
- IP Communication
- Network
- IP Monitoring
- Accessories
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