The FireAngel Pro ST-230 optical smoke alarm is mains powered with a 10 year sealed lithium back-up battery. Designed to last the life of the alarm, the back-up battery continues to provide power in the event of a mains failure. The ST-230 smoke alarm can be interlinked (using cable) with up to 30 smoke and heat alarms from the FireAngel Pro series, providing wide coverage within a single smoke alarm system. Once interlinked, if the ST-230 smoke alarm is activated, it triggers all other linked alarms to also sound.
Power: 230V mains powered with 10 year lithium back-up battery
Backup Battery: Built-in battery lasts the lifetime of your alarm - GUARANTEED
In a wireless-only system the maximum number of compatible units that can interlink is 50, while a hard-wired-only system is limited to 30 units. In a mixed hard-wired and wireless alarm system these maximum quantities can be exceeded.
For each "group" of hard-wired alarms in a system, only one should be a wireless model. For example, in a 3 storey house you could hard-wire 2x ST-230 and 1x WST-230 alarms together on each floor with all of the WST-230 models wirelessly interlinked to each other. This can technically be done to a maximum of 50 groups of 30 alarms, though FireAngel has not designed, optimised, or tested these alarms for such a large system. Having so many alarms interlinked would create large communication delays between the alarms, potentially resulting in occupants not being given adequate warning of a fire. It is heavily recommended that customers desiring a large amount of alarms for a single property instead look into full Fire Alarm Systems which are designed for larger premises.
The table below shows all the units that can interlink with the FireAngel Pro alarms.
Q. What smoke alarm should I use in a bedroom with an en suite bathroom?
A. It is usually recommended to install an optical smoke alarm in a bedroom. This is because optical smoke alarms are slightly quicker at detecting slow smouldering fires that can originate from upholstery type materials and over-heated wiring. Also, an optical smoke alarm would be less likely to sound a false alarm than an ionisation would, if steam/water droplets were present from the bathroom. Detectors should be installed as central to the room as possible; however for your application I would also consider the position of the en suite to make sure that the detector is not in the direct path of the joining door. This is just to try and avoid the chances of a false alarm. No detector is designed for use in bathroom areas.
Q. How do I safely dispose of my old smoke alarms?
A. Safelincs is signed up to Valpak's WEEE (Waste Electrical and Electronic Equipment) Distributor Take-Back Scheme (Registration ID: 7370). Private households can therefore drop off their electronic and electrical fire safety waste at their municipal recycling centre when they are purchasing new products from us. To find your nearest recycling centre, please visit www.recycle-more.co.uk.
Q. Can the mains powered smoke alarm range be connected to mains power via the lighting circuit?
A. Yes, hard-wired mains powered alarms can be wired to the unswitched live feed of the nearest frequently used lighting circuit.
Q. How long do the batteries last in smoke alarms?
The 9V alkaline batteries last 12-18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime. Some lithium cells are also rechargeable, and when used in a mains-powered alarm may last for the entire functional lifespan of the alarm. Newer alarm models may also feature a "sealed" lithium battery. These batteries are specialist components which are designed to not be removed or need replacing by the user, and have been tested by the alarm manufacturer to ensure they last for the lifetime of the alarm.
Please Note: the actual lifetime of your batteries depends on how often the alarms are tested or activated, as sounding the alarm draws more power than when the alarms are "waiting" to detect fire. You should also read your alarm's manual to make sure you only use the recommended types and brands of batteries, as failing to follow these instructions may cause the alarm to malfunction, not alerting you in the event of a fire, and might also invalidate the warranty.
Q. If a false alarm goes off can pressing the hush button on any of the interlinking alarms stop all the units beeping?
A. No, to stop the alarms from sounding the hush button on the unit that started the process needs to be pushed. Pressing any other unit will just silence that one unit. The unit can be identified by the rapidly flashing red LED.
Q. When the test button is pressed on an interlinking smoke alarm will this cause all the other units to go off, too?
A. Yes, by pressing the test button on one alarm all the units in that family will also be activated. To 'teach' the units which other smoke alarms belong to the same family, the smoke alarms have to be set up together during the installation. This is done by pressing a 'housecoding button' or similar process.
Q. What sort of smoke alarm system would I need to install for a HMO?
A. BS 5839-6 recommends that one or two storey HMOs with an individual floor area of no more than 200sqm (not the total of both floors) should have a Grade D smoke alarm system installed. Grade D refers to mains powered smoke alarms with a back up battery power supply. The alarms can be interlinked either by wire or by radio signal and the system does not require a separate fire alarm panel. For HMOs of 3 storey or higher, a Grade A panel system would need to be installed. This can cover the whole of the building, or can be used just for the communal areas with a separate Grade D system installed for the individual dwellings. For both applications, the level of cover should be a minimum of LD3 (in all escape routes) but this may change according to the fire risk assessment.
Q. Do you need an electrician to connect mains powered smoke alarms?
A. It is necessary that an electrician installs mains powered smoke alarms.
Q. How long do smoke alarms last before needing replacement?
A. It is recommended that smoke alarms are replaced after 10 years. This is because the sensors in the smoke alarms become less sensitive and may not activate when a fire is present.
Q. Can I put my smoke alarm on the wall, or must it be mounted on the ceiling?
The best location to install your smoke alarm is in the centre of the ceiling rather than on the wall. During a fire, smoke initially rises and then spreads to the sides of the room. By installing the alarm on the ceiling, this ensures that you receive the earliest possible warning of a fire.
Q. Why do your mains powered alarms have batteries?
A. All our mains powered alarms have a battery backup. Although mains powered alarms without this option do exist (BS5839 part 6 grade E), we regard them as far too dangerous, as a lot of fires are caused by electrical faults leaving the building unprotected against fire if the smoke alarms have no backup battery. With our mains powered alarms you will always be protected.
Q. Do I need an ionisation or optical smoke alarm?
A. We recommend using an optical smoke alarm in hallways, as these are less likely to go off because of cooking fumes from a connected kitchen. Optical smoke alarms are also ideal for living rooms, dining rooms, bedrooms, as they are good at detecting smouldering fires from soft furnishings. For landings we recommend ionisation alarms. Heat alarms are designed for kitchens and garages. No alarms should be installed in bathrooms.
Key Product Features
Easy-to-use test/hush button takes centre stage
Break-out tab for seamless trunk wiring connection
3 coloured LEDs show you its status at a glance
Screws and rawl plugs for installation are included
7 customers have have given this product an overall rating of 4.7 out of 5
Reviews by real customers
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
Rating: 4 / 5 Stars
Reviewed by: HD
More expensive than standard smoke detectors, but have good features
Got three of these (two link together, wired). They were fitted by an electrician so I can't comment on that but it seemed easy enough. Note that the screws fitting the plate to the ceiling need to be recessed or they'll interfere with the working of the unit. These are neat and smart-looking.
I wanted to fit these and not worry about them again (no replacing of batteries). I was a little disappointed that one of the units did develop a fault within a couple of weeks, but Safelincs were excellent and sent a replacement.
Published on: 28th April 2018
Rating: 4 / 5 Stars
Reviewed by: JH
Arrived rapidly, just what we wanted.
Published on: 14th November 2017
Rating: 5 / 5 Stars
Reviewed by: SS
Easy to fit to replace existing hard wired alarms.
Published on: 12th August 2017
Rating: 5 / 5 Stars
Reviewed by: ID
Easy to install and a good price, does the job.
There are prettier ones but these meet all specs
Published on: 26th February 2017
Rating: 5 / 5 Stars
Reviewed by: SD
replaced different manufacuter (Firex) with this one easily