Fire Alarm Sounders
Fire alarm sounders should be installed throughout the building with an even distribution, to generally provide a minimum sound level of 65dB(A) or 5dB(A) above any background noise which is likely to persist for more than 30 seconds.
Where the alarm may have to arouse sleeping persons e.g. hotel bedrooms, nursing homes, etc, a minimum sound level of 75dB(A) is required, at the bed head with all the doors shut.
All fire alarm sounders in a building should produce the same sound, distinct from any other audible warning devices in the building.
Where fire alarm sounders are required in extremely noisy areas e.g. machine shops, it may be necessary to install additional fire alarm flashers.
Miditone Electronic Fire Alarm Sounder White (ZMDD/8W)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder is a small, high output conventional sounder from Zeta Alarm Systems. It is available in red or white.
- Price: £17.63 (£15.00 ex VAT)
Miditone Electronic Fire Alarm Sounder Red (ZMDD/8R)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder is a small, high output conventional sounder from Zeta Alarm Systems. It is available in red or white.
- Price: £17.63 (£15.00 ex VAT)
Securetone Fire Alarm Sounder Red (ZST/8R)
Manufacturer: Zeta Fire Alarm Systems
The Securetone sounder is designed to be aesthetically pleasing and unobtrusive.
It has an elegant round design, and fits to its supplied mounting plate with a bayonet action to avoid unsightly screws.
- Price: £18.80 (£16.00 ex VAT)
Securetone Fire Alarm Sounder White (ZST/8W)
Manufacturer: Zeta Fire Alarm Systems
The Securetone sounder is designed to be aesthetically pleasing and unobtrusive.
It has an elegant round design, and fits to its supplied mounting plate with a bayonet action to avoid unsightly screws.
- Price: £18.80 (£16.00 ex VAT)
Maxitone Fire Alarm Electronic Sounder Red (ZMT/8R)
Manufacturer: Zeta Fire Alarm Systems
Zeta electronic sounders are ideal alternatives to fire bells. The electronic sounders produce a high sound level at a lower current consumption, making them ideal for reducing the battery standby capacity for a system.
The Maxitone sounder ZMT has 8 selectable tones (selectable via dip switch combinations), and an adjustable volume control (for small rooms).
- Price: £23.50 (£20.00 ex VAT)
Maxitone Fire Alarm Electronic Sounder White (ZMT/8W)
Manufacturer: Zeta Fire Alarm Systems
Zeta electronic sounders are ideal alternatives to fire bells. The electronic sounders produce a high sound level at a lower current consumption, making them ideal for reducing the battery standby capacity for a system.
The Maxitone sounder ZMT has 8 selectable tones (selectable via dip switch combinations), and an adjustable volume control (for small rooms).
- Price: £23.50 (£20.00 ex VAT)
Miditone Electronic Sounder & LED Flasher Red (ZMDF/8R)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder-flasher is the latest combined sounder flasher from Zeta Alarm Systems.
It is a compact unit that fits a standard European back box, and can be either surface or flush mounted.
- Price: £30.55 (£26.00 ex VAT)
Miditone Electronic Sounder & LED Flasher Amber (ZMDF/8A)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder-flasher is the latest combined sounder flasher from Zeta Alarm Systems.
It is a compact unit that fits a standard European back box, and can be either surface or flush mounted.
- Price: £30.55 (£26.00 ex VAT)
Miditone Electronic Sounder & LED Flasher Blue (ZMDF/8B)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder-flasher is the latest combined sounder flasher from Zeta Alarm Systems.
It is a compact unit that fits a standard European back box, and can be either surface or flush mounted.
- Price: £30.55 (£26.00 ex VAT)
Miditone Electronic Sounder & LED Flasher Clear (ZMDF/8C)
Manufacturer: Zeta Fire Alarm Systems
The miditone sounder-flasher is the latest combined sounder flasher from Zeta Alarm Systems.
It is a compact unit that fits a standard European back box, and can be either surface or flush mounted.
- Price: £30.55 (£26.00 ex VAT)

