Aico is acknowledged as the market leader in residential fire safety products and has products to suit Contractors, Specifiers, Specials Needs and Special Applications. There are all different types of alarms available and each type responds to different types of smoke or levels of heat, so each is better suited to different areas of the home.
Optical Sensor - more responsive to smouldering fires (Sofas, TVs).
Heat Sensor - (triggers at 58°C). It responds to heat build-up from large flaming fires
ionisation sensor - more responsive to flaming fires (Papers, Clothing).
All are mains powered and available in Lithium or 9 volt battery back up.
http://www.electricsandlighting.co.uk/products?search_api_views_fulltext...
Downlaod the controlfacts App:
http://www.aico.co.uk/Controlfacts-App.html