With a 10 year sealed long life lithium battery fitted the FireAngel ST-622 optical smoke alarm uses a thermally enhanced smoke sensor.
The FireAngel ST-622 benefits from additional features including easy to use test/hush button, as well as "sleep-easy" function, allowing low battery warning chirps to be silenced for 8 hours - this does not effetc the performance and the alarm will still sound should smoke be detected.
Enhanced Optical Smoke Alarm
Built-in battery lasts the life time of your product
Tamper-proof battery does not need to be replaced for the life of the alarm
CE marked and Kitemarked to BS EN 14604
Features a test/hush button
Ground breaking Thermoptek optical smoke sensing technology
Thermally enhanced for quicker detection of smouldering fires (compared to standard optical sensors)
Toast proof sensor - less prone to false alarms caused by cooking fumes
Ideal for areas adjacent to the kitchen (not suitable for kitchen or garage)
Sleep Easy™ function temporarily silences low battery and end of life warning chirp for 8 hours
10 year manufacturer's warranty
Suitable for installations complying to BS 5839-6: 2013 Grade F
Sensing technology of choice for the UK's Fire and Rescue Service
Supplied with fixings; 2 x screws and 2 x rawl plugs
Weight 0.21kg Dimensions (HxDia) 34x130mm Battery Type 10 year sealed lithium battery Sound Output 85dB at 3 metres Operating Temperature +4 °C to +38 °C Relative Humidity (non-condensing) Up to 90%