Smoke Alarm Fire Angel SW1-R Optical Detector Mains Wired Battery Backup

Mains powered with replaceable 9V battery back-up (included). Interconnect up to 50 alarms with the RF interlink base or hardwire interconnect up to 12 SW1, HW1 or CW1 alarms. The optical smoke sensing chamber works by ‘seeing’ smoke as it enters the alarm ‑ making it perfect for slow burning fires where there is thick white smoke.

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