The 10-year sealed lithium battery FireAngel FA6120-INT, requires no battery changes for its whole lifespan. Automatically activates when attached to the base plate, the FA6120-INT optical smoke alarm is ideal for bedroom and living room installations, as it is designed to detect slow, smouldering fires often associated with soft furnishings. Suitable for BS 5839-6: 2019 Grade F1 domestic installations, the FireAngel FA6120-INT features a Sleep Easy function which can silence low battery warnings for up to 8 hours and a large, central test / hush button for easy weekly testing – including a reduced volume feature to avoid startling occupants. It is the ideal solution to replace your old ST-620 with no need to change the base plate or redecorate. The FireAngel FA6120-INT is powered by a sealed 10-year battery, with no requirement to change batteries for the entire 10-year lifespan of the alarm. Activated by attaching to the base plate, the FA6120-INT optical smoke alarm is designed to detect slow, smouldering fires especially those maintained by soft furnishings making it ideal for installation in bedrooms and living rooms. The FireAngel FA6120-INT is powered by a 10 year sealed battery and has a 5 year manufacturer's warranty. Suitable for BS 5839-6: 2019 Grade F1 domestic installations and features a Sleep Easy™ function which can silence low battery warnings for up to 8 hours and a large, central test / hush button for easy weekly testing. It is the ideal solution to replace your old SI-610 with no need to change the base plate or redecorate.

Thermoptek Multi-Sensor technology constantly monitors for temperature change and if a sudden temperature rise is detected, the sensitivity of the alarm is increased. The FireAngel SO-601 optical smoke alarm with toast proof sensing technology, operated by a 9V alkaline battery has now been discontinued. The replacement alarm, FireAngel FA6120-INT is designed to be a straightforward replacement and use the base plate from its previous model without the requirement for any DIY or decorating. The FireAngel FA6120-INT is a sealed 10 year battery powered smoke alarm featuring Thermoptek Multi-Sensor technology. This is the international version of the E141 and comes with multiple translation booklets. The very popular FireAngel ST-620 10 year optical smoke alarm was discontinued by the manufacturer in 2018. The FireAngel FA6120-INT has been designed to simply twist onto your existing base plate with no need to drill any more holes in your ceiling or redecorate. The FireAngel ST-622 Thermoptek optical smoke alarm, technology of choice for the UK Fire & Rescue Services, has been discontinued by the manufacturer. The FireAngel FA6120-INT uses the same base plate as the ST-622, with no requirement to drill no more holes in your ceiling or redecorating.

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The smoke alarm also benefits from 'Toast Proof' technology which reduces nuisance alarms. The smart silence button also allows the alarm to be silenced for up to 10 minutes in the event of a known false alarm. The handy "sleep-easy" function also allows the smoke alarm to be temporarily silenced for 8 hours.

The FireAngel SI-610, an extremely popular ionisation smoke alarm, was discontinued by the manufacturer in 2018. The new FireAngel FA6120-INT has been designed to simply twist onto your existing base plate with no need to drill any more holes in your ceiling or redecorate. Optical and heat detection technologies increase the alarm’s sensitivity for a faster response. This provides a much faster reaction to both slow smouldering and fast-flaming fires in a single alarm.