- Standalone
- Compliant with BS 5446-2: 2003, KM 677057. Standard
- 10-Year Sealed Tamperproof Lithium Integrated Battery
£17.59Inc Vat
- Interlinked via Wireless
- Compliant with BS 5446-2: 2003, KM 677057. Standard
- 10-Year Sealed Tamperproof Lithium Integrated Battery
£72.99Inc Vat