REPLACEABLE BATTERIES : The SB1-R smoke detector includes a 1-year replaceable battery. For a false smoke alarm, hold the SB1-R test button for 5 seconds to silence it for 8 minutes. SAFETY ASSURED : The FA3313 CO monitor holds CE and UKCA marks and is certified to BS EN 50291-1:2018 and BS EN 50291-2:2019.
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