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Optical Smoke Alarms
Optical smoke alarms, also known as photoelectric smoke alarms, work by ‘seeing’ the smoke and providing an audible alarm. They have a quick response to visibly smouldering fires, usually caused by soft furnishings such as foam filled furniture and overheated PVC wiring from old and dated electrics. Because of their advanced technology, optical smoke alarms are particularly good in certain areas where you would otherwise expect false alarms caused by fumes and steam, especially near kitchens and bathrooms. Due to the phased-out technology of ionisation smoke alarms, optical smoke detectors are highly recommended as their replacement. This means that locations such as landings and hallways which were previously covered by ionisation alarms, can now be covered with an optical smoke alarm. Optical sensors are suitable for a variety of installation locations throughout your home, including living rooms, bedrooms, hallways, landings, and dining rooms.
Mains Powered Smoke Alarm with Lithium Back-Up Battery - Hispec RF10-Pro
- Power: 230V mains powered with battery backup
- Backup: Rechargeable lithium battery backup
- Warranty: 5 year manufacturer's warranty
- Radio-interlinks up to 20 compatible devices
- Suitable for BS 5839-6: 2019 Grade D1
- Kitemarked to BE EN 14604: 2005
- Also suitable for both the Welsh and Scottish 2022 legislation
Mains Radio-Interlinked Optical Smoke Alarm with Sealed Longlife Back-up Battery - FireAngel Pro Connected FP1640W2-R
- Power: 230V mains powered with lifetime back-up battery
- Back-up Battery: Built-in, lasts the lifetime of your alarm – GUARANTEED
- Warranty: 5 year warranty
- Thermally enhanced optical sensor (Thermoptek)
- Can interlink with up to 50 Wi-Safe 2 compatible devices
- Range of up to 35m in buildings
- Suitable for BS 5839-6: 2019 Grade D1 installations
- Kitemarked to EN 14604: 2005
- Also suitable for both the Welsh and Scottish 2022 legislation
Mains Radio-Interlinked Optical Smoke Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3016RF
- Power: 230V mains powered with back-up battery
- Backup Battery: Self-charging battery
- Warranty: 5 year warranty
- Supplied with Ei3000MRF SmartLINK module
- Radio-interlink with up to 12 devices
- Extract real time data to their smart phone
- CE and Kitemarked to BS EN 14604: 2005
- Also suitable for both the Welsh and Scottish 2022 legislation
Mains Radio-Interlinked Combined Smoke and Heat Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3024RF
- Power: 230V mains powered with back-up battery
- Backup Battery: Self-charging battery
- Warranty: 5 year warranty
- Combined alarm: both an optical smoke, and heat sensor
- Hybrid interlinking with up to 12 compatible devices
- AudioLINK - extract real time data to your smart phone
- Kitemarked to BS EN 14604: 2005 (smoke)
- Kitemarked to BS 5446-2: 2003 (heat)
- Also suitable for both the Welsh and Scottish 2022 legislation
Mains Powered Smoke & Heat Alarm with Rechargeable Lithium Battery Backup - Hispec RF10-PRO
- Power: 230V mains powered with lithium back-up battery
- Back-up Battery: Rechargeable lithium battery
- Warranty: 5 year manufacturer's warranty
- Multi-sensor alarm containing both a smoke and heat sensor
- Radio-interlink up to 20 compatible alarms
- Kitemarked to BS EN 14604: 2005 (smoke)
- Kitemarked to BS 5446-2: 2003 (heat)
- Also suitable for both the Welsh and Scottish 2022 legislation
10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10
- FREE delivery
- Battery: 10 year sealed lithium battery
- Warranty: 10 year manufacturer's warranty
- Large combined test and silence button
- 2 x optical smoke alarms and 1 x heat alarm included
- Suitable for BS 5839-6: 2019 Grade F1 installations
10 Year Sealed Battery 3 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10
- FREE delivery
- Battery: 10 year sealed lithium battery
- Warranty: 10 year manufacturer's warranty
- Large combined test and silence button
- 3 x optical smoke alarms and 1 x heat alarm included
- Suitable for BS 5839-6: 2019 Grade F1 installations
10 Year Longlife Battery Optical Smoke Alarm Twin Pack - Kidde 10Y29
- FREE delivery
- Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
- Warranty: 10 year warranty
- Features test and hush buttons
- Low Volume Test feature
- 2 x KE10Y29 smoke alarms
- Suitable for BS 5839-6: 2019 (Grade F1 installations)
- Kitemarked to BS EN 14604: 2005
Battery Optical Smoke Alarm - UltraFire UBS1 Twin Pack
- Battery: 9V alkaline battery (included)
- Warranty: 10 year warranty
- Large test and hush button
- High performance optical sensor
- 2 x optical smoke alarms included
- Suitable for BS 5839-6: 2019 Grade F2 installations
- Certified to BS EN 14604: 2005
Radio-Interlink Sealed Battery 3 Smoke and 1 Heat Alarm Kit - Firehawk W Series
- Detector Battery: 10 year sealed lithium battery
- Wireless Base Battery: 7 Year Sealed Lithium
- Warranty: 7 year manufacturer's warranty
- Easy expansion – Interlink up to 15 alarms
- Also suitable for the 2022 Scottish legislation
Radio-Interlink Sealed Battery 3 Smoke, 1 Heat Alarm and CO Alarm Kit - Firehawk W Series
- Detector Battery: 10 year sealed lithium battery
- Wireless Base Battery: 7 year sealed lithium
- Warranty: 7 year manufacturer's warranty
- Easy expansion – Interlink up to 15 alarms
- Also suitable for the 2022 Scottish legislation
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Optical Smoke Alarm
Optical Smoke Alarm
Optical smoke alarms, sometimes called photo-electric smoke alarms, are the only sensor type for commonly used rooms such as living rooms, bedrooms, and hallways. These are considerably safer as they do not contain any radioactive material, in comparison to the phased-out technology of the ionisation smoke alarms. The advanced optical sensor, means that they are less prone to false alarms caused by cooking fumes and steam, making them suitable to be installed near, but never in kitchens and bathrooms.
How do they work?
Optical smoke alarms work by ‘seeing’ smoke produced by slow smouldering fires, often a result of soft furnishings burning. The alarm works by using the light scatter principle, this is where a pulsating infrared LED operates within the alarm sensor, pulsing every 10 seconds to check for smoke particles. Once smoke particles are detected within the optical chamber, it activates the sounder alerting occupants to the fire.
Where is the best place to install them?
Optical smoke alarms are best situated in rooms where soft furnishings are, such as bedrooms, living rooms, hallways, and landings. Within these rooms, it is recommended by the manufacturer that the alarm is installed on the ceiling, however there are exceptions where smoke alarms can be installed on the wall. The best installation locations are specified in the user manual supplied with any alarm.
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