Thermoptek Smoke Alarm
5 Year Replaceable Batteries
The FireAngel ST-625 Smoke Alarm has been designed to make protecting your home simple, with easy install and testing and rigorous testing by independent parties, such as BSI Kitemark, to ensure quality and longevity.
The fastest response to all fire types.
Manufacturer's warranty for peace of mind.
To ensure you install the right alarm for your home, and one that's compliant with your local fire regulations, review our manual and data sheet or get in touch with our customer service team.BUY NOW
The ST-625 alarm cannot be interlinked to other alarms in your home, but still offers a high protection against fire. Follow the installation guides to ensure your alarm is installed correctly and test weekly.BUY NOW
FireAngel are committed to developing technologies which provide the highest levels of fire detection for your home.
With power inputs to suit all installations, including sealed, tamper proof, batteries or mains powered options with back-up batteries, you can be confident your FireAngel device will protect you for years to come.
Testing your smoke alarms no longer means you need the step ladders - FireAngel have you covered with a large central push button!
Thermoptek technology combines the very latest in optical sensing with thermal enhancement and when compared to single sensor alarms react to fire in under half of the time - meaning you and your family have vital extra time to react.
The unit comes with 2 x AA batteries that can be replaced once you hear the low battery chirp. The sensor within the unit will deteriorate after 10 years, so to ensure you're protected we recommend you replace the unit after this time.
As well as allowing easy testing with a sweeping brush from the floor below, this large button also activates our Sleep Easy function which silences low battery chirps for 8 hours - giving you a peaceful night's sleep.
Yes – we have a range of long-life smoke alarms in our range – found here. If you’re looking for a smart smoke alarm with optional notifications and testing via your phone then view our FireAngel Pro Connected alarms.
For the quickest alert to fire we recommend that the alarms in the home are all interlinked, either with a hardwired or wireless connection.
Our Pro Connected alarm range allows you to build a network across your entire home. For example, a network of 7 x smoke alarms, 3 x heat alarms, 3 x carbon monoxide alarms and a Gateway will be completely secure and protect your whole home.
In order to identify how many alarms to install you need to research the guidelines for fire detection that apply in your local area, using regulations such as Building Regulations or the guidance in BS5839-6, and consider your property type; whether that be private owned, rented, new build, renovated etc. The advice below is purely provided for ‘best practice’ and should not be used independently.
If you live in Scotland find out more about the law in your area on our blog post here. (link to homeowner Scottish regulations blog)
Smoke Alarms: To offer high protection FireAngel 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. 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.
Heat Alarms (Kitchen Alarms): Heat alarms are the only alarm suitable for use within the kitchen as they’re not affected by cooking fumes like traditional smoke alarms. Over 60 Percent of fires start in the kitchen, with cooking and faulty white goods (fridges and tumble driers) being the main causes. FireAngel recommend a heat alarm is fitted in the kitchen, but you can also fit additional heat alarms in the garage and loft to protect these areas.
Carbon Monoxide (CO) alarms: A Carbon Monoxide detector is the only way to be alerted to a carbon monoxide leak; it can’t be smelt, tasted or seen so it’s impossible for human senses to detect. Known as the ‘Silent Killer’, carbon monoxide (CO) occurs when fuels burn incompletely, with common sources being boilers, gas fires and hobs and solid fuel burners. However, carbon monoxide can also pass through walls, so you would also be at risk if a neighbouring property had a leak. FireAngel recommend a CO alarm is installed between 1 m and 3 m away from each fuel-burning appliance, as well as installing additional units in areas such as living rooms and bedrooms where you spend most time whilst at home.
If the danger is smoke related the devices will be sounding the alarm in a three beep pattern – ‘beep beep beep’, with the red LED also flashing three times. If the danger is Carbon Monoxide related the devices will be sounding the alarm in a four beep pattern – ‘beep beep beep beep’ with the red LED also flashing four times.