Optical Smoke Alarm
10 Year Lifetime Battery Looking for a FireAngel ST-622 smoke alarm replacement? Replace your end of life alarm without requiring a new base plate or leaving unsightly holes in your ceiling.
A fast response to slow burning fires.
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 FA6620 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, you can be confident your FireAngel device will protect you for years to come.
Testing your smoke alarms no longer means you need a step ladder - FireAngel have you covered with a large central push button.
The optical smoke sensing chamber works by 'seeing' smoke as it enters the alarm - making it perfect for slow burning fires where there is thick white smoke. For the fastest response to all fire types search for FireAngel Thermoptek Alarms.
The unit comes with a sealed, tamper proof battery that will last the lifetime of the alarm. 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.
Press the large testing button once to activate a quiet self-test without disturbing your neighbours, or double press the large button to activate a test at full alarm volume.
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 on our blog post here.
To offer high protection FireAngel advise a smoke alarm within the circulation area of each floor of the property (hallway & landing), as well as within the main habitable areas such as bedrooms and living room – where we usually have more electricals such as extension leads and chargers plugged in.
We recommend you install Smoke Alarms alongside Carbon Monoxide (CO) Alarms and Kitchen Heat Alarms in your home for complete protection.
A quiet self-test allows you to ensure your alarm is working, without disturbing anyone else with a loud alarm.
A single press of the test button will perform a quiet self test, with the alarm volume at least 10dB below the full volume of your alarm.
A double press of the test button will perform a self test at full alarm volume (85dB@3M).
Looking for a FireAngel ST-622 smoke alarm replacement?
Replace your end of life ST-622 alarm with a FireAngel FA6615-R Optical Smoke Alarm with 5 year replaceable batteries or FireAngel FA6620-R Optical Smoke Alarm with 10 year sealed for life battery, without requiring a new base plate or leaving unsightly holes in your ceiling.
You can replace your end of life device with this alarm, without requiring a new baseplate.
You may find the baseplate for your alarm is a little snug, which means it will need extra force to secure when fixing to the alarm. If the ‘lugs’ at the rear of the alarm can be seen, then the alarm will be secure and can be installed. However, if you’re unable to turn the baseplate enough for these to be seen then we can offer an alternative baseplate.
Baseplate secure and engaged
When fixing your alarm to the baseplate, it’s important to turn it as far as possible to ensure it is engaged and secure. If the ‘lugs’ at the rear of the alarm can be seen, then the alarm will be secure and can be installed. However, if you’re unable to turn the baseplate enough for these to be seen then we can offer an alternative baseplate.
Baseplate secure and engaged