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Whether you are looking for a battery powered smoke alarm, a radio-interlinked smoke alarm system or mains-powered smoke and heat alarms we have smoke detectors that will meet your needs. We offer Grade F and D smoke and heat alarms.
The Firehawk FHN250BB is a mains powered optical smoke alarm with an alkaline battery backup. It can be hardwired interlink up to 15 devices in one system including the Firehawk FHN250 or FHN450 alarms.
This Firehawk FHN450BB mains powered heat alarm features replaceable alkaline battery backup, and interlinks with other 250BB/RB smoke and 450BB/RB heat alarms in the FHN range.
Ionisation Smoke Alarms detect changes in the electrical charge of particles in the air within their sensor chamber. They were particularly well suited for 'invisible' or fast-flaming fires, such as paper or dry wood fires, which can give off very little smoke despite having an active flame. They were sadly also very sensitive to burnt toast, which is why they should not be installed near kitchens. Historically, ionisation smoke detectors have been recommended for landings and office spaces, but the technology behind optical smoke alarms advanced to the point that they are interchangeable.
Ionisation smoke alarms are being phased out across the entire fire safety industry, from standalone domestic alarms to detectors in the largest commercial panel systems. This is because they use radioactive material in the sensor to detect the presence of smoke particles in the air, making them dangerous to manufacture, awkward and costly to transport, and an environmental hazard if disposed of incorrectly.
Safelincs has stopped selling ionisation smoke alarms, and we would encourage all of our customers to purchase optical smoke alarms instead. Optical smoke alarms are not potentially hazardous like ionisation technology, due to not using radioactive elements.