Replacements for 86 RACEN and 2002 RACE smoke detectors - YouTube
Dicon 670MBX Smoke Alarm - mains operated with battery back up, ionisation sensor | Amazon price tracker / tracking, Amazon price history charts, Amazon price watches, Amazon price drop alerts | camelcamelcamel.com
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Replacing a BRK 770MBX and 770MRL Ionisation Smoke Alarm - YouTube
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 (