Sounder / Siren
EN54-3 Approved

This EN54 approved sounder provides a high efficiency, low power solution for alarm signalling where audible signals are required.

The NS100 has a unique first fix installation method in the base, this unit is quick to install to reduce the cost of installation.

The high quality and robust design ensures that the user has trouble free operation over the life of the product, even in tough environments.

With a wide range of selectable options for tones, the product is suitable for a wide range of applications.



Key Features
Quick First fix installation.
Wide operating voltage 12 to 56Vdc.
Low power consumption.
Reverse polarity monitoring.
32 alarm tones.
2 stage alarm option.
Fully synchronised.
IP65 rated with Deep base.

Key Benefits
Maintains SPL approval compliance on long cable lengths.

Full synchronisation across tones and flashes on all products in the range enabling very flexible system upgrades and changes.

Lower installation costs.
One unit suits many applications.

High specification and efficiency simplifies product selection.

Offices, Retail outlets, Hospitals, Universities, Commercial and Industrial sites, Shopping Malls, Power stations, Airports, Railway stations, Stadiums etc..
Order codes
NSF100R-R-S Sounder in Red with red strobe and shallow base.
NSF100R-R-D Sounder in Red with red strobe and Deep base.
NSF100R-R-DAK Sounder in Red with red strobe and DAK base.

Contact us for details.

Additional information

Supply voltage range

Compliant operating range 18—56 V dc, Maximum Operating range 12 – 56V dc

Current consumption

10mA to 30mA depending on setting

Cable monitoring

reverse polarity monitoring

Terminal size

0.28 to 2.5mm² conductor

Sound Output

>95dB(A) < 110dB(A) tone dependant

32 selectable tones

Selected via DIL switch

Volume control

Provides up to –25dB attenuation

Flash options

High and low output, 1s and 2s flash rates DIL switch selectable


V0 rated ABS body & base, V0 Polycarbonate lens



Base colour

White or Red

Fixing method

Body to base – Bayonet auto connect, Base to wall – Screw

Operating temperature

–25°C to +75°C

IP Rating

IP33C or IP65 and Type B