•OPTICAL SENSOR: The FA6620’s optical smoke-sensing chamber works by 'seeing' smoke as it enters the alarm, making it ideal for slow-burning fires that produce thick, white smoke. Whilst it is less prone to false alarms from cooking fumes, it can still be triggered by steam. Not suitable for kitchens or bathrooms.
•SEALED-FOR-LIFE BATTERY: The FA6620 smoke detector has a 10-year, tamper-proof battery that will last the lifetime of the alarm. A red operational LED will flash, and an audible beep will alert you when the device needs replacing.
•FOR DOMESTIC PREMISES ONLY: Suitable for domestic premises, including leisure accommodation vehicles (mobile homes and caravans). Not suitable for commercial properties.
•Designed to replace the ST-622 and ST-620 smoke alarms, the baseplate is identical to the ST-622, making replacements quick and easy.
•FireAngel: Smarter solutions for safer homes.