HEIMAN 10 Year Optical Smoke Alarm Detector, 10 Year Life Battery Photoelectric Fire Alarm Smoke Detector with LED Indicator & Silence Button, Conforms to EN14604 Standard, 633PHS (1PCS) (633PHS-1) : Buy Online
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FireAngel Optical Smoke Alarm with 10 Year Sealed For Life Battery, FA6620-R (ST-622 / ST-620 replacement, new gen) , White : Amazon.co.uk: DIY & Tools