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ATTENTION: Read carefully this installation Instructions before installing the device!
This manual is subject to change without notice!
1. General Description
Natron WSS is a wireless addressable fire alarm sounder with strobe, designed for operation with Natron series
wireless expander modules*. The fire sounder is equipped with 360˚visible strobe LED indication and a built-in
sounder for signalization in case for announcing of events –fire alarm and finding the place of installation. The
operation of the strobe and sounder is programmed from the sounder’s menus (addressable panel or expander
module). Natron WSS is a VAD (Visual Alarm Device) compatible with a deep wireless fire base for wall
mounting. For prevention of unauthorized disassembling or removing, the sounder can be locked to the fire base.
The fire sounder is equipped also with a tamper switch for self-protection of the box. Natron WSS is designed for
indoor installation.
* Refer to the installation manuals of Natron WE-C, Natron WE-A and Natron WE-A/C wireless expander modules for detailed
information about the programming menus and other details.
2. Technical Specifications
Communication range with expander module ...................1500m
Battery power supply..........................................................4 x CR123A 3V
Battery life...........................................................................~8 years
Radio frequency .................................................................868MHz
Communication type...........................................................Bidirectional
Communication Protocol....................................................NATRON TTE
Radio signal modulation type.............................................GFSK
Number of frequency channels ..........................................6 pair channels
Radiated power ..................................................................≤ 20 mW
Receiver category (EN300-220-1) .....................................1.5
Trace attenuation (during the installation)..........................≥ -90dBm
Test transmission message period ....................................300s
Number of tone types (selectable from panel/module)......32
Power volume (main tone type 27):
- Low volume..............................................................~80dB (A) ±6dB@1m
- High volume .............................................................~92dB (A) ±5dB@1m
Power volume (other tone type):
- Low volume..............................................................~75-85dB ±3dB@1m
- High volume .............................................................~80-95dB ±3dB@1m
Operation temperature .......................................................-10°C to +55°C
Related humidity resistance (no condensation).................(93±3)% @ 40°С
Enclosure box type, color...................................................SAN, white transparent
Dimensions (including base)..............................................Ø116x90mm
Protection ...........................................................................IP31
Weight (including base and batteries)................................372g
Mounting.............................................................................Wall, VAD device, Indoor use
Standards ...........................................................................EN 54-3; EN 54-23; EN 54-25