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FireAngel HM-SN1 Sona White Mains Powered Thermistek Heat Alarm With Test/Hush, Lithium Battery Backup & Integrated Base - Shop4 Electrical
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FireAngel HM-SN-1 Mains Powered Thermistek Heat Alarm with Lithium Back-Up Battery | Safe Fire Direct
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FireAngel Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen) & FireAngel SB1-TP-R Smoke Alarm, 2 Pack, White : Amazon.co.uk: DIY & Tools
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