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Mains Powered Smoke Alarms & Heat Alarms with Self-Charging 10 Year Back-up Battery - BRK 700 Series - From £31.19 inc VAT
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BRK 670MBX Ionisation Smoke Alarm, Mains Powered with 9 V Battery Backup : Amazon.co.uk: DIY & Tools
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Amazon.co.uk:Customer reviews: BRK 670MBX Ionisation Smoke Alarm, Mains Powered with 9 V Battery Backup
![Amazon.co.uk:Customer reviews: BRK 670MBX Ionisation Smoke Alarm, Mains Powered with 9 V Battery Backup Amazon.co.uk:Customer reviews: BRK 670MBX Ionisation Smoke Alarm, Mains Powered with 9 V Battery Backup](https://m.media-amazon.com/images/I/71f+vS6WChL._CR0,204,1224,1224_UX256.jpg)
Amazon.co.uk:Customer reviews: BRK 670MBX Ionisation Smoke Alarm, Mains Powered with 9 V Battery Backup
![Need replacement smoke alarm. Current model (BRK 670MBX) discontinued. Do I *really* need to replace all (as per alarm manufacturer guidelines)? Can I not just wire up generic alarm to the circuit ( Need replacement smoke alarm. Current model (BRK 670MBX) discontinued. Do I *really* need to replace all (as per alarm manufacturer guidelines)? Can I not just wire up generic alarm to the circuit (](https://preview.redd.it/9r2qstsfu2781.jpg?auto=webp&s=8e860b3cc4a3a7cb9732ddf0affafa3b4366d797)