Fire Alarm Horn Strobe (Sounder with Flasher)
Red wall-mounted fire alarm horn strobe for 24 V DC panels. Combines a loud horn with a bright flashing strobe so the alarm is both heard and seen in noisy factories, offices and public buildings.
| Option | Price | Availability | SKU |
|---|---|---|---|
| Red, wall mount | ৳4,500 | In stock | FSB-FD-HORNSTROBE-RED-WALL-MOUNT |
Delivery across Bangladesh. Cash on delivery available.
Delivery:
- Inside Dhaka: ৳60, about 2 days
- Outside Dhaka: ৳120, about 5 days
Payment methods: Cash on delivery, bKash, Credit / debit card, Cards, mobile banking and internet banking (SSLCommerz)
Specifications
- Product code
- FSB-FD-HORNSTROBE
- Type
- Fire alarm sounder strobe
- Type
- Combined horn (sounder) and strobe, wall mount
- Colour
- Red body with white "FIRE" lettering, clear strobe lens
- Operating voltage
- 24 V DC nominal (polarised)
- Circuit
- Fire alarm panel sounder (notification) circuit
- Audible signal
- Electronic horn, loud enough for corridors and work floors; level depends on setting
- Visual signal
- White flashing strobe, about one flash per second
- Mounting
- Surface or flush on a wall back box, indoor
- Settings
- Flash intensity and tone selectable on many models
- Color
- Red
- Application
- Office, Industrial, Hospital
Description
A fire alarm horn strobe is a notification device that gives two warnings at once: a loud electronic horn and a bright white flashing light. It is wired to the 24 V DC sounder circuit of a fire alarm control panel and operates automatically when the system goes into alarm. The red body is marked "FIRE" so nobody mistakes it for another signal.
Why use a horn strobe instead of a bell?
- Noisy workplaces — in sewing floors, generator rooms, workshops and plant rooms a bell can be drowned out; the flash still catches attention.
- People who cannot hear the alarm — workers wearing ear protection and people with hearing loss rely on the visual signal.
- Clear meaning — a horn tone with a flashing "FIRE" unit is hard to confuse with a shift bell or a machine buzzer.
Where should it be installed?
| Location | Reason |
|---|---|
| Production floors and workshops | High background noise |
| Corridors and lobbies | Seen from a distance along the escape route |
| Washrooms and isolated rooms | A person alone may not hear a distant bell |
| Generator and plant rooms | Ear protection is often worn |
Mount it on the wall, high enough to be seen over furniture and machines, and position units so that the flash is visible from every part of the room.
How is it wired?
The unit is polarised and connects in parallel with other bells and sounders on the same circuit, with the end-of-line resistor at the last device. Horn strobes draw more current than bells, especially the strobe, so add up the current of all devices and compare it with the panel's sounder-circuit rating before installing. Many models let the installer select the flash intensity and the horn tone or volume with switches on the back.
Applications
- Garment sewing floors and noisy production areas
- Generator rooms, boiler rooms and plant rooms
- Office corridors, lobbies and meeting rooms
- Hospitals, clinics and diagnostic centres
- Hotels, shopping centres and public buildings
- Washrooms and isolated rooms
Recommended usage
Mount the horn strobe on a wall back box where the flash can be seen from the whole room, roughly 2 to 2.4 m above the floor, and connect it to the 24 V DC sounder circuit observing polarity. Set the flash intensity and tone as the system design requires, then check the total circuit current against the panel rating.
Safety instructions
For 24 V DC fire alarm circuits only — do not connect to mains voltage. Isolate the sounder circuit before wiring. Do not paint the unit or cover the lens. The horn is loud at close range, so warn occupants before testing. Flashing lights can affect people with photosensitive epilepsy; keep tests short.
Frequently asked questions
What is a horn strobe in a fire alarm system?
A horn strobe is a fire alarm notification device that sounds a loud horn and flashes a bright light at the same time. It is connected to the fire alarm panel and warns people both by sound and by sight when a fire is detected.
Is a strobe light required with a fire alarm?
A visual alarm is needed wherever people may not hear the sounder — in very noisy areas, where ear protection is worn, and where people with hearing loss work or stay. Codes such as NFPA 72 set out where visible notification is required, and many export-factory safety audits in Bangladesh ask for it on production floors.
Can I mix horn strobes and bells on the same fire alarm panel?
Yes, both work on a 24 V DC sounder circuit and can be connected to the same panel. Keep the total current within the circuit rating, and try to use one type of sound in any one area so the alarm signal stays consistent.
How high should a fire alarm horn strobe be mounted?
Wall-mounted units are normally fixed about 2 to 2.4 metres above the floor, clear of furniture, racks and machines. NFPA 72, for example, places the strobe lens between 80 and 96 inches (about 2.0 to 2.4 m) above the finished floor.