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Mains Powered Smoke Alarms & Heat Alarms with Self-Charging 10 Year Back-up Battery - Firehawk RB Series
Product Overview
Interlink
Technical Data
FAQs (1)
These Firehawk optical smoke and heat alarms are mains-powered and fitted with sealed self-charging back-up batteries designed to last their full 10 year lifespan without needing to be replaced. Suitable for Grade D1 installations and Scottish regulations, Firehawk FHN250RB optical smoke alarms and FHN450RB heat alarms can interlink in a system of up to 15 alarms to warn all occupants throughout the whole house if one detects a possible fire. The supplied Fast-Fix bases also allow for the easy replacement or swapping of smoke and heat alarm heads from the same range if required. An "end of life" warning chirp will sound when the whole unit needs replacing after 10 years, but this can be silenced for 10 hours in case it starts during the night.
- 230V mains powered with self-charging battery backup
- Lithium back-up battery lasts the full 10 year life of the alarms
- 10 year manufacturer's warranty
- Available in two versions:
- FHN250RB optical smoke alarm – suitable for most rooms including hallways, landings, living rooms, and bedrooms
- FHN450RB heat alarm – suitable for rooms likely to have steam, dust, or fumes like kitchens and garages
- Also available with replaceable alkaline back-up batteries
- Fast-Fix design for quick installation using Push-Fit connectors
- Up to 15 Firehawk mains-powered smoke and heat alarms can interlink in one system
- Advanced sensor technology to reduce false alarms and ensure quick detection of fires
- End of life warning chirp when the alarm head needs replacing, which can be silenced overnight
- Combined large test and silence button for ease of maintenance
- Suitable for installations complying to BS 5839-6 Grade D1
- CE marked and certified to EN 14604: 2005 (smoke alarm) / Kitemarked to BS 5446-2: 2003 (heat alarm)
- This alarm is also suitable for the updated 2022 Scottish legislation for fire alarms in homes
Please Note: these FHN series alarms are not compatible with the older FH models.
The table below shows all alarms which can interlink via cable with the Firehawk FHN250RB and FHN450RB mains powered smoke & heat alarms.
Please Note: these FHN series alarms are not compatible with the older FH models.
Mains-Powered Alarms
| Model | Description | Battery Backup | Interlink |
|---|---|---|---|
| FHN250BB | Mains Powered Optical Smoke Alarm | 3x AAA Alkaline (included) | Hardwire |
| FHN450BB | Mains Powered Heat Alarm | 3x AAA Alkaline (included) | Hardwire |
| FHN250RB | Mains Powered Optical Smoke Alarm | 10 Year Sealed Lithium | Hardwire |
| FHN450RB | Mains Powered Heat Alarm | 10 Year Sealed Lithium | Hardwire |
Accessories
| Model | Description | Power | Interlink |
|---|---|---|---|
| FHN600Remote | Battery Powered Wireless Remote Control | 1x CR2025 Coin Cell | IR (infrared) |
| Product Code |
FHN250RB Optical Smoke Alarm: FIFHN250RB FHN450RB Heat Alarm: FIFHN450RB |
|---|---|
| Brand | Firehawk |
| Back-Up Battery | Sealed Self-Charging Lithium |
| Dimensions (HxDia) | FHN250RB Smoke: 55 x 113mm FHN450RB Heat: 69 x 113mm |
| Operating Temperature | 0°C to 40°C |
| Relative Humidity | < 85% |
| Storage Temperature | 5°C to 30°C |
| Weight | FIFHN250RB: 0.24kg FIFHN450RB: 0.24kg |
| Product Datasheets |
Q. Can I put my smoke alarm on the wall, or must it be mounted on the ceiling?
A.
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 horizontally. Placing the smoke alarm in the centre of your ceiling means that it is closest to all four points of your room. This ensures that you receive the earliest possible warning of a fire.
For more information, read our guide to positioning your smoke alarm and guide to which smoke alarms are best for each room.
Key Product Features
Lithium back-up battery lasts the full 10 year life of the alarms
Fast-Fix mounting base design for quick, easy installation
Alarms can be removed quickly to easily replace the batteries
Combined large test and silence button for ease of maintenance
Pricing & Availability
| Model | Stock | Price |
|---|---|---|
|
FHN250RB Optical Smoke Alarm Product Code: FIFHN250RB |
Stock Level:
Temporarily unavailable
|
Price:
£31.79 inc VAT £26.49 ex VAT |
|
FHN450RB Heat Alarm Product Code: FIFHN450RB |
Stock Level:
More than 20 in stock Expected dispatch: 17th Dec
|
Price:
£35.63 inc VAT £29.69 ex VAT |
Delivery Options
The following delivery options are available on this product.
Customer Reviews
3 customers have given this product an overall rating of 4.7 out of 5
Reviews by real customers
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.Rating: 4 / 5 Stars
Reviewed by: K C
Easy to fit, working ok so far
Published on: 17th November 2023
Rating: 5 / 5 Stars
Reviewed by: J H
Neat,long backup battery life and quickly fitted. very happy with my purchase.
Published on: 29th July 2023
Rating: 5 / 5 Stars
Reviewed by: J H
Neat, long backup battery life and quickly fitted. very happy with my purchase.
Published on: 29th July 2023
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