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Amazon£22.62Visit shop Firehawk FHN250BB Mains Powered Optical Multi-Criteria-Enhanced Smoke Alarm with Alkaline Battery Backup - these FHN series alarms are NOT compatible with the older FH models
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The Firehawk FHN250BB is a mains-powered optical smoke alarm designed for homeowners seeking reliable fire detection with battery backup. Its key benefit is enhanced detection technology combined with a secondary power source for continuous operation. A potential consideration is that it requires mains power, limiting placement options to areas with accessible electrical outlets. This alarm features multi-criteria detection, an 85dB alarm, and a power indicator.
| Model Part Number | FHN250BB |
|---|---|
| Brand | Firehawk |
It is recommended to test the smoke alarm once a month using the test button to ensure it is functioning correctly.
The FHN250BB uses an alkaline battery for backup power.
You can clean the smoke alarm by vacuuming the casing with a soft brush attachment monthly. For a more thorough clean, use a slightly damp cloth, avoiding solvents or harsh cleaners.
No, the Firehawk FHN250BB is a standalone unit and does not support wireless interconnection with other smoke alarms.
The power indicator light confirms that the smoke alarm is connected to the mains power supply and is operational.
Optical smoke detection is particularly effective at sensing larger smoke particles produced by slow-burning, smoldering fires. It also tends to be less prone to nuisance alarms from cooking fumes compared to ionization alarms.
Due to its mains-powered nature, it is strongly recommended that the installation be carried out by a qualified electrician to ensure safety and compliance with electrical regulations.
Check that the mains power is connected and the power indicator is lit. Ensure the alkaline battery backup is correctly installed and functional. If issues persist, consult an electrician or replace the unit.
This usually indicates a low battery. Replace the alkaline battery backup. If chirping continues after battery replacement, there may be an environmental factor (e.g., extreme temperature) or a fault with the unit.
Ensure the alarm is not placed too close to cooking appliances, bathrooms, or heating vents. Clean the alarm exterior using a vacuum cleaner with a soft brush attachment to remove dust. Avoid using aerosol sprays near the alarm.
Verify that the mains power supply to the unit is active. Check your home's circuit breaker. If the power supply is confirmed and the light remains off, contact a qualified electrician to inspect the wiring.
Setup:
Compatibility:
This alarm is designed to connect to standard household mains power. It is not designed for wireless interconnection with other alarm systems. Ensure your electrical wiring is compatible and installed by a qualified electrician.
Care:
