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FireAngel FA3820 10 Year Sealed Battery Alarm Carbon Monoxide, Clear & SB1 -TP-R Smoke Alarm, 2 Pack, White : Amazon.co.uk: DIY & Tools
FireAngel TST-625-623-E-R Thermoptek Smoke Alarm Combi with 5-year batteries & Escape light, Pack of 2 | DIY at B&Q
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