Optical Midi batt smoke alarm 1 yr batt

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Firehawk FH Midi Series Battery Operated Smoke Alarms

Firehawk FH Midi series battery operated smoke alarms are compact optical smoke alarms giving you a choice of power sources. A high performing alarm with a stylish design containing TSE technology, bespoke software and up-to-date technology. Thermal stability enhancement TSE is designed to reduce noise nuisance alarms still maximising the detection of smoke and fire. In addition to the small compact design the alarm features a large test and silence button, audible low battery warning plus, an end of alarm life indicator.


Compact design
Power source choice
Battery powered
High performing
TSE technology – Thermal Stability Enhancement
Bespoke software
Maximum detection of smoke and fire
Reduced nuisance alarm
Large test and silence buttons
Audible low battery warning
Alarm life indicator


Stock number 123-5774. Part number FH150 Midi. 1-year replaceable battery
Stock number 123-5775. Part number FH155 Midi. 5-years replaceable battery


EN 14605:2005

Stand Alone Fire Alarms

Battery Operated

A comprehensive range of battery operated smoke alarms all carrying the BS Kitemark and compliance with BS5446:Pt1:1990. They are suitable for BS5839:Pt6:1995 Fire Systems grade F.

Mains Powered Interconnectable

All new properties are required by the Building Regulations to have installed mains powered smoke alarms. Refurbished properties and small commercial premises may also be required to install mains operated alarms.
BS5839:Pt.6:1995 acknowledges that all three types of detection i.e. ionisation, optical and heat detection, need to be considered depending on the installation circumstances. It is also recommended that some form of back-up is used in the event of mains failure.
Optical alarms are recommended for use in circulation spaces such as landings and hallways. Ionisation alarms are more appropriate for use in living rooms and fixed temperature heat alarms are designed for use in kitchens and garages. All alarms must be interconnected using 3 core and earth cable.

At least one alarm on each floor of the house
Max. 7.5m between alarms and no more than 3m from bedroom doors
Alarms can be wired off lighting circuits if the alarm has its own backup supply
Locate as close as possible to centre of ceiling, away from light fitting
Alarms must be kept clean at all times and particularly whilst building work or decoration is in progress

Mains Operated

Suitable for new buildings to allow conformity to building regulations. Each unit features an 85dB at 3m internal alarm and interconection facility which allow the sensing unit to trigger up to 11 other detectors, for added safety and particularly when one unit might not be heard in a large building or from behind closed doors.
The unit causing the alarm also has an indicator to show the source. Each unit has a green continuous LED to indicate mains present.
These products can also be fitted using the surface mounting kits. A relay output option is also available to allow for triggering of remote indicators or other communication/alarm systems. All units are supplied complete with instructions.
290-3816 = 12V Operating Voltage with Relay Output.

Attribute Value
Type Smoke Detector
Piezo Alarm Yes
74 In stock for delivery within 2 working days
Unit of sale: Each
(exc. VAT)
(inc. VAT)
Per unit
1 - 9
10 - 19
20 +
Related Products
The battery-powered Gemini GX20e is a manual, high-powered ...
The battery-powered Gemini GX20e is a manual, high-powered fire alarm with piezo-electric sounder suitable for small buildings Up to four units may be linked together. Integral call point, battery and sounder Battery fault monitor Keyswitch to silence and restart alarm ...
The weatherproof CSA-FDW24 SD Evolution is designed for ...
The weatherproof CSA-FDW24 SD Evolution is designed for the detection of unauthorised smoking in external areas and will detect a flame lighting a cigarette with 120 degree field of view The module is designed for single applications, and will detect ...
With 5 year manufacturer's warranty, the SA300UK is ...
With 5 year manufacturer's warranty, the SA300UK is a great value battery powered ionisation smoke alarmThe alarm benefits from both test and hush button facility, making it easy to check functionality and silence false alarms. Ionisation smoke sensor - quick ...
The SA700LUK features a sealed 10 year lithium ...
The SA700LUK features a sealed 10 year lithium battery that does not need replacing for the life of the alarmIts quick detection to smouldering fires makes it suitable for bedrooms, living rooms and downstairs hallway areas. Optical smoke sensor - ...