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Ionisation Smoke Alarms
This section now contains our selection of replacement products designed to help customers easily find the most suitable optical alarm model to replace their ageing ionisation alarms. Ionisation smoke alarms are now being phased out across the entire fire safety industry, from standalone domestic alarms to detectors in the largest commercial panel systems. This is because they use radioactive material in the sensor to detect the presence of smoke particles in the air, making them dangerous to manufacture, awkward and costly to transport, and an environmental hazard if disposed of incorrectly. Ionisation smoke alarms were very effective for detecting fast-flaming fire. Historically, ionisation smoke detectors have been recommended for landings and office spaces, but the technology behind optical smoke alarms has now advanced to the point that they are interchangeable. Optical smoke alarms also are not deemed potentially hazardous like ionisation technology, due to not using radioactive elements.
Safelincs has stopped selling ionisation smoke alarms, and we would encourage all of our customers to purchase optical smoke alarms instead.
Replacement for FireAngel SI-610 10 Year Smoke Alarm - UltraFire ULLS10
- Easily replace FireAngel SI-610 alarm with UltraFire ULLS10
- Adaptor plate simply twists onto existing baseplate
- Battery: 10 year sealed lithium battery
- Warranty: 10 year manufacturer's warranty
- Combined test and silence button
- Suitable for BS 5839-6: 2019 Grade F1 installations
- CE and Kitemarked to BS EN 14604: 2005
Replacement for Ei141 and Ei141RC Mains Powered Smoke Alarms
- Power: 230V mains with back-up battery
- Back-up Battery: Replaceable 9V alkaline battery
- Warranty: 5 year warranty
- Fits onto your existing Ei141 smoke alarm base
- Fully compatible replacement for Ei141 smoke alarms
- Upgrade to optical sensor technology for fewer false alarms
- Kitemarked to BS EN 14604: 2005
Replacement for Kidde KF10 Mains Powered Smoke Alarms
- Power: 230V mains with back-up battery
- Back-up Battery: 9V alkaline back-up battery (included)
- Warranty: 6 year warranty
- Fully compatible replacement for Kidde KF10 ionisation smoke alarms
- Fits onto your existing KF10 alarm base – no need for an electrician
- Optical sensor technology with improved smoke detection
- Kitemarked to BS EN 14604: 2005
Replacement for Ei151 Mains Powered Smoke Alarm
- Power: 230V mains with back-up battery
- Back-up Battery: Self-charging lifetime battery
- Warranty: 5 year warranty
- Alarm test and silence button
- Optical sensor technology for fewer false alarms
- LED power and function indicators
- Kitemarked to BS EN 14604: 2005
Replacement for Ei161, Ei161RC and Ei161e Mains Powered Smoke Alarms
- Power: 230V mains with back-up battery
- Back-up Battery: Self-charging lifetime battery
- Warranty: 5 year warranty
- Fits onto your existing Ei161 smoke alarm base
- Fully compatible replacement for Ei161 smoke alarms
- Upgrade to optical sensor technology for fewer false alarms
- Kitemarked to BS EN 14604: 2005
Ionisation Smoke Alarms
Why are ionisation smoke detectors being phased out?
Ionisation Smoke Alarms
Some of the first smoke detectors produced, ionisation smoke alarms contain a weak radio-active source and react very quickly to fast flaming fires and any traces of smoke. While suitable for most rooms, historically ionisation smoke alarms have been recommended for installation on landings and in hallways. These alarms are not suitable for installation near kitchens or bathrooms as cooking fumes and steam can cause false alarms. For these locations it is recommended to install optical smoke detectors, which are less prone to false alarms.
Please note: Ionisation smoke alarms are now being phased out across the entire fire safety industry in favour of optical smoke alarms due to manufacturing, transportation, and disposal concerns around the radioactive material that ionisation smoke sensors rely on.
Why are ionisation smoke detectors being phased out?
In December 2020 the Government revised the management of radiation protection regulations in accordance with the manufacture, transportation and disposal of smoke alarms containing Americium-241. Ionisation smoke detectors use a small amount of radioactive material within the sensor to detect the presence of smoke.
Are ionisation smoke detectors safe?
The amount of radiation present within ionisation smoke alarms is very small therefore does not pose a health risk. This small quantity of radioactive material is securely enclosed within the alarm, ensuring that it remains contained under normal conditions. If released, the volume of radiation emitted is minor therefore is not detrimental to health.
How should I dispose of my ionisation smoke detector?
Ionisation smoke detectors come under the WEEE (Waste Electrical and Electronic Equipment) regulations in the UK. WEEE encourages recycling to reduce the amount of electronic equipment which is sent to landfills. Homeowners and landlords should drop off old alarms and detectors their local recycling centre rather than throwing them away in general rubbish or even their council-provided recycling bins.
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