FireAngel Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) by Amazon.co.uk

Price last update: 12/06/2025
  • The perfect replacement for FireAngel ST-625 model with a simple swap of the baseplates, or for ST-622, ST-620 and ST-750 models using the existing baseplate
  • With optical sensing technology smoke is rapidly detected as it enters the alarm chamber, for a quick reaction to slow burning fires
  • The alarm is supplied with 2 x AA batteries which can be replaced upon hearing the low battery warning, it is recommended you replace the alarm after 10 years
  • Featuring a quiet test function which means you're less likely to wake up loved ones or disturb the neighbours when testing your alarms
  • Give yourself vital time to replace the batteries in your alarm by silencing low battery warnings for 8 hours using the sleep easy feature
  • Suitable for homes in England and Wales. Not suitable for Scottish homes under the new regulations
  • FireAngel alarms are rigorously tested to ensure unrivalled quality and longevity and come with a 5 year manufacturer's warranty for peace of mind

    Description

    Simple baseplate fitting for easy replacement
    The alarm has been designed to update many installations using FireAngel devices - making it the perfect for replacing ST-622, ST-620 and ST-750 alarms which you may currently have installed. This means you may be able to take down your current device with a simple twist, and install the new alarm in seconds. For a new installation, or when replacing a current FireAngel ST-625 product the new baseplate can be installed easily using two screws (not included).
    Once installed please test the alarm by pressing the large central test button to ensure the alarm is fitted correctly and operational.



    What alarm network do I need to protect my family and home?
    To offer ultimate protection we advise a smoke alarm within the circulation area of each floor of the property, as well as within the main habitable areas such as bedrooms and living room. Install alongside heat alarms and carbon monoxide alarms for complete protection.
    It’s important to remember that the sensors in all smoke alarms deteriorate after time, at FireAngel we recommend that smoke alarms are replaced every 10 years.
    The advice is purely provided for practice in England and Wales alongside guidance in BS5839-6, for homes in Scotland please follow the guidance in the new regulations (this device is not suitable for installations in Scotland).



    Tested & trusted devices for your home
    FireAngel Smoke Alarms are designed in-house at our Midlands based development centre and have been rigorously tested to ensure unrivalled quality and longevity. Each product is packed full of trusted technology, with a sleek and polished design to fit seamlessly into your home.
    All FireAngel alarms are independently tested to EN14604:2005+AC2008 (Smoke Alarms) and are CE and UKCA marked so you can be confident that they will protect your home and family.



    FireAngel's Pro Connected Smart Alarm Range
    For instant alerts to your mobile while you're away from home, or updates for your elderly parents home search for the FireAngel Pro Connected smart alarm range.
    Suitable for homes in Scotland, the range can be wirelessly interlinked so that when one alarm sounds, they all sound.
    The devices are packed full of FireAngel's enhanced-sensing technologies which provide a rapid alert to danger within the home, giving you maximum time to react.




    Rapid installation



    Home protection



    Quality assured



    Smart alerts
















    Simple testing, quieter volume
    With our quiet test function, you're less likely to wake up loved ones or disturb the neighbours when testing your alarms.

    Replaceable batteries
    The alarm comes with two AA batteries which can be replaced when the low battery alert begins. Replace the full alarm every 10 years.

    Slow burning fire protection
    Optical sensing technology detects smoke as it enters the alarm chamber, for a quick reaction to slow burning fires.

    Enjoy a peaceful night's sleep
    Give yourself vital time to replace your alarm by silencing low battery warnings for 8 hours.

    Product information

      • Brand:Fireangel
      • Style:New Gen Alarm
      • Power Source:Battery Powered
      • Colour:White
      • Item dimensions L x W x H:11.8 x 11.8 x 3.2 centimetres
      • Weight:185 Grams
      • Alarm:Smoke Alarm
      • Manufacturer:FireAngel
      • Part Number:FA6615-R
      • Product Dimensions:11.8 x 11.8 x 3.2 cm; 185 Grams
      • Item model number:FA6615-R
      • Material:Plastic
      • Shape:Circular
      • Installation method:Install in a matter of minutes with only 2 screws required (not included) to secure the baseplate, then twist the alarm in to place
      • Item Package Quantity:1
      • Cutting Diameter:118 Millimetres
      • Included Components:1 x Optical Smoke Alarm, 1 x Instruction Manual, 1 x Baseplate, 2 x AA Batteries
      • Batteries included?:Yes
      • Batteries Required?:Yes
      • Battery Cell Type:Alkaline
      • Assembled Diameter:118 Millimetres
      • Item Weight:185 g
      FireAngel Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen)
      FireAngel Optical Smoke Alarm with 5 Year Replaceable Batteries, FA6615-R (ST-625 replacement, new gen) by Amazon.co.uk
      Price last update: 12/06/2025