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Our multi-sensor alarms for easy install

Fire Safety

26 July 2025

Multi-sensor alarms are a forward-thinking option that offers a smarter, more reliable, and efficient way to protect properties. Keep reading to find out why multi-sensor alarms are the best choice for fire safety protection.

The fire safety landscape in the UK has evolved greatly in recent years. The introduction of the Smoke and Carbon Monoxide Alarm (England) Regulations 2022 has resulted in more stringent standards that landlords and installers must abide by. In addition, the advancement of fire safety technology is seeing increased demand from customers for more sophisticated solutions.

What are multi-sensor alarms?

Multi-sensor alarms combine two or more different fire detection technologies within a single unit, most often optical smoke and heat sensors. Some advanced models also include a carbon monoxide (CO) sensor.

As different sensors detect different types of smoke and heat, and therefore different types of risk, combining more than one sensor in a single unit can help to better differentiate between a real fire and false alarms.

Reduction in false alarms is a key advantage of multi-sensor alarms. In the UK, false alarms continue to rise, with a large majority coming from apparatuses. Of the 254,041 false alarms attended by Fire and Rescue Services in the year ending September 2024, 183,115 were due to apparatus. This highlights the critical need for reliable and efficient fire alarm systems.

Other benefits of multi-sensor alarms include better detection of a wider range of fires including slow smouldering and fast-flaming thanks to the multiple data points it uses from the different sensors. These alarms are also increasingly recommended for optimal protection and compliance.

Which alarm is best for me?

FireAngel offers a market-leading range of multi-sensor alarms. Each alarm uses FireAngel’s unique patented Thermoptek technology which combines the latest optical sensing with thermal enhancement for rapid detection of all fires.

Meet our Range

  1. FireAngel FS2126-T 10 Year Multi-Sensor Smoke Alarm
    A battery-powered, sealed-unit multi-sensor alarm using Thermoptek technology. Designed for rapid detection of all fire types, it’s suitable for hallways, landings, living rooms, dining rooms, and bedrooms.
  2. FireAngel Pro Connected FP2620W2-R
    A smart, battery-powered multi-sensor alarm with Thermoptek technology. Offers wireless interlinking with other Pro Connected alarms (smoke, heat, CO), app integration for real-time alerts, and a 10-year sealed battery. Ideal for larger properties or where remote monitoring is required.
  3. FireAngel ST-622Q / ST-622T 10 Year Thermoptek Smoke Alarm
    A popular, stand-alone multi-sensor alarm with a 10-year sealed battery. Features Thermoptek technology for fast response to both fast-flaming and slow-smouldering fires, smart silence for nuisance alarms, and is “toast proof” for use near kitchens.
  4. FireAngel ST-750T 10 Year Thermoptek Smoke Alarm
    Another advanced multi-sensor alarm with a 10-year sealed battery, smart silence, and reduced nuisance alarms. Designed to meet UK Fire & Rescue Service specifications.
  5. FireAngel SM-SN-1 Mains Powered Thermoptek Multi-Sensor Smoke Alarm
    A 230V mains-powered multi-sensor alarm with a sealed-for-life battery backup. Hard-wired interlinking capability, low power consumption, and suitable for new builds or major refurbishments.

For even more advanced protection, explore interlinked alarms. Interlinked smoke, heat, and carbon monoxide (CO) alarms offer unparalleled safety by ensuring that all alarms in a property sound simultaneously when one detects danger. They work as a network by transmitting signals between devices to ensure synchronised alerts. These are particularly beneficial for vulnerable residents.

Multi-sensor alarms are recognised as an enhancement within British Standards BS 58396, meaning they go above and beyond the minimum requirements and are an excellent choice for installers for any property.

To discover our full product range, as recommended by experts, click here.

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If you can't find what your looking for on our blogs and looking for further guidance and advice, our UK-based Customer Support team are on hand all week from 8:30am until 5:30pm, they can answer any further queries you may have on our products, solutions or services.