Fitted with a 10 year sealed long life lithium battery, the Fire Angel ST-622 optical smoke alarm uses a thermally enhanced smoke sensor; the technology of choice for the UK's Fire and Rescue Service. The FireAngel ST622T 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.

• Battery powered smoke alarm - sealed 10 year long life battery
• 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