The FireAngel SI-610, an extremely popular ionisation smoke alarm, was recently discontinued by the manufacturer. FireAngel recommends the ST-622 Thermoptek smoke alarm as the most suitable replacement for the discontinued alarm. The ST-622 smoke alarm will fit on to the existing SI-610 base, so you won't need to drill new holes or fit additional screws, it can be swapped over in seconds.
With a 10 year sealed long life lithium battery and thermally enhanced smoke sensor, the technology of choice for the UK's Fire and Rescue Service, the FireAngel ST-622 is the best choice for replacing your old SI-610 ionisation smoke alarm.
Battery: Built-in, lasts the lifetime of your alarm
Q. Do I need an ionisation or optical smoke alarm?
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.
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. What is the best way to test my alarm?
We recommend testing alarms by pressing the test button built-in to the unit, as this is designed to simulate the detection of the target stimuli (usually smoke, heat, or CO) at the alarm sensor. You should test your alarms regularly to ensure they are protecting building occupants, preferably every week. For more detailed guidance, check the manual included with your alarm.
Q. How long do smoke alarms last before needing replacement?
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 a smoke alarm be fitted with a sticky adhesive pad in a let property?
The sticky pad is suitable for all battery operated smoke alarms. However, we cannot judge if battery alarms are suitable for your let property, as let properties usually require mains powered alarms. There is some advice to this in the governments guides to fire risk assessments. http://www.safelincs.co.uk/Fire-Risk-Assessment/ Also see the LACoRS guide for let properties.