10 Best Hard Wired Smoke Detectors for Home in the UK 2025

Updated on 16/07/2025
#1
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  • Optical smoke alarm powered by mains electricity, capable of interlinking with up to 23 other Kidde mains alarms.
  • All alarms activate simultaneously upon detection of smoke or fire.
  • Includes a 9V Alkaline backup battery for reliable operation.
  • Dust compensation and bug screen minimize false alarms.
  • Alarm memory identifies the triggering unit in the network.
  • Tamper-resistant locking mechanism prevents unauthorized removal.
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  • Optical smoke alarm powered by mains electricity, capable of interlinking with up to 23 other Kidde mains alarms.
  • All alarms activate simultaneously upon detection of smoke or fire.
  • Includes a 9V Alkaline backup battery for reliable operation.
  • Dust compensation and bug screen minimize false alarms.
  • Alarm memory identifies the triggering unit in the network.
  • Tamper-resistant locking mechanism prevents unauthorized removal.
#2
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  • Hardwired smoke detector with the ability to interconnect up to 12 units, ensuring reliable communication.
  • Interconnection test feature allows simultaneous testing of all connected alarms with a single button press.
  • Operates on 120V power with a 9V battery backup, which lasts for at least one year to ensure continuous function during power outages.
  • Silence button to quickly address false alarms with a five-second hold.
  • Compact design measuring 5” in diameter and 1.6” in depth, UL217 certified for safety and reliability in identifying home fires.
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  • Hardwired smoke detector with the ability to interconnect up to 12 units, ensuring reliable communication.
  • Interconnection test feature allows simultaneous testing of all connected alarms with a single button press.
  • Operates on 120V power with a 9V battery backup, which lasts for at least one year to ensure continuous function during power outages.
  • Silence button to quickly address false alarms with a five-second hold.
  • Compact design measuring 5” in diameter and 1.6” in depth, UL217 certified for safety and reliability in identifying home fires.
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#3
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  • Photoelectric smoke detection technology that identifies slow-smoldering fires with thick smoke for early warning.
  • Hardwired smoke alarm operates on AC power with a battery backup, ensuring functionality during power outages and alerts for low battery.
  • User-friendly design featuring easy installation, a mute function, and a test mode for regular maintenance.
  • Can connect with up to 12 devices for synchronized alerts in multiple locations, enhancing overall fire safety.
  • Certified to EN14604:2005/AC-2008 standards for reliable sensitivity, sound volume, and operational performance in fire detection.
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  • Photoelectric smoke detection technology that identifies slow-smoldering fires with thick smoke for early warning.
  • Hardwired smoke alarm operates on AC power with a battery backup, ensuring functionality during power outages and alerts for low battery.
  • User-friendly design featuring easy installation, a mute function, and a test mode for regular maintenance.
  • Can connect with up to 12 devices for synchronized alerts in multiple locations, enhancing overall fire safety.
  • Certified to EN14604:2005/AC-2008 standards for reliable sensitivity, sound volume, and operational performance in fire detection.
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#4
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  • Set of 2 smoke alarms for enhanced coverage
  • Mains hard wired design for reliable power
  • Includes 9V battery backup for uninterrupted operation
  • Features a white finish that blends with decor
  • Provides essential fire safety for homes
  • Designed for easy installation and maintenance
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  • Set of 2 smoke alarms for enhanced coverage
  • Mains hard wired design for reliable power
  • Includes 9V battery backup for uninterrupted operation
  • Features a white finish that blends with decor
  • Provides essential fire safety for homes
  • Designed for easy installation and maintenance
#5
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  • Interlinks with up to 23 Firex hard-wired alarms for comprehensive coverage
  • Features a combined test and hush button for easy operation
  • Automatically resets after a test or alert
  • Includes a tamper-resistant locking device for added security
  • Operates on mains power with a battery backup for reliability during outages
  • The Kidde KF2 smoke alarm is mains powered with a battery backup to ensure functionality during power cuts.
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  • Interlinks with up to 23 Firex hard-wired alarms for comprehensive coverage
  • Features a combined test and hush button for easy operation
  • Automatically resets after a test or alert
  • Includes a tamper-resistant locking device for added security
  • Operates on mains power with a battery backup for reliability during outages
  • The Kidde KF2 smoke alarm is mains powered with a battery backup to ensure functionality during power cuts.
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#6
9% Off
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  • Optical smoke alarm for effective home protection against slow-burning fires.
  • Advanced sensor reduces false alarms caused by cooking fumes.
  • Equipped with a sealed 10-year battery for long-term reliability.
  • Simple installation with a removable base plate for easy mounting.
  • Certified for safety with CE and UKCA marks, backed by a 5-year warranty.
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  • Optical smoke alarm for effective home protection against slow-burning fires.
  • Advanced sensor reduces false alarms caused by cooking fumes.
  • Equipped with a sealed 10-year battery for long-term reliability.
  • Simple installation with a removable base plate for easy mounting.
  • Certified for safety with CE and UKCA marks, backed by a 5-year warranty.
#7
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  • Power supply via AC mains and backup through 9V alkaline battery.
  • Features Ei146e Optical Smoke Alarm technology.
  • Compatible with remote testing, location, and silencing.
  • Supports hardwired interconnection with other devices.
  • Detector model may differ.
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  • Power supply via AC mains and backup through 9V alkaline battery.
  • Features Ei146e Optical Smoke Alarm technology.
  • Compatible with remote testing, location, and silencing.
  • Supports hardwired interconnection with other devices.
  • Detector model may differ.
#8
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  • Photoelectric smoke alarm with reduced false alarm rate. Loud alarm at over 89dB(A) within 3 meters.
  • Visual indicators for power and alarm status. Operates on mains power (220-240V AC, 50Hz) with a 9V PP3 battery backup included.
  • Easy installation with push-fit mounting base and dust cover to protect during construction. Supports linking up to 12 alarms from the same range.
  • Non-radioactive materials used. Features a fitted gasket and Class II double insulation with an earth park terminal. Compliance with BS EN14604: 2005 / AC:2008 standards and CE approved.
  • Size: 140mm diameter and 60mm depth.
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  • Photoelectric smoke alarm with reduced false alarm rate. Loud alarm at over 89dB(A) within 3 meters.
  • Visual indicators for power and alarm status. Operates on mains power (220-240V AC, 50Hz) with a 9V PP3 battery backup included.
  • Easy installation with push-fit mounting base and dust cover to protect during construction. Supports linking up to 12 alarms from the same range.
  • Non-radioactive materials used. Features a fitted gasket and Class II double insulation with an earth park terminal. Compliance with BS EN14604: 2005 / AC:2008 standards and CE approved.
  • Size: 140mm diameter and 60mm depth.
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#9
10% Off
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  • Mains powered with a 7-year sealed rechargeable lithium backup battery
  • End-of-life warning alerts when the alarm is nearing expiration
  • LED display shows alarm status, power supply status, and low battery alerts
  • Digital display offers early warning for intermittent and low CO levels, indicating FIRE or CO with interconnected Kidde alarms
  • Choice between standard LED display or digital display
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  • Mains powered with a 7-year sealed rechargeable lithium backup battery
  • End-of-life warning alerts when the alarm is nearing expiration
  • LED display shows alarm status, power supply status, and low battery alerts
  • Digital display offers early warning for intermittent and low CO levels, indicating FIRE or CO with interconnected Kidde alarms
  • Choice between standard LED display or digital display
#10
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  • Operates on 230V mains with a 9V alkaline battery backup (included)
  • Includes an Easi-fit base for easy alarm head replacement
  • Features a loud 85dB(A) alarm at 3m with a built-in test/hush button
  • Interconnects with all Aico 230V smoke alarms
  • Incompatible with circuits that include a control switch
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  • Operates on 230V mains with a 9V alkaline battery backup (included)
  • Includes an Easi-fit base for easy alarm head replacement
  • Features a loud 85dB(A) alarm at 3m with a built-in test/hush button
  • Interconnects with all Aico 230V smoke alarms
  • Incompatible with circuits that include a control switch
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