SensoIRIS BSST is аn addressable fire base with built-in sounder and strobe in its body. SensoIRIS BSST is designed for installing in addressable fire alarm systems supporting TTE communication protocol. The device is powered on from the panel and can be controlled via the communication protocol. The addressable SensoIRIS BSST fire base supports 32 different tone types at two sound levels.

The device is designed for easy installation and consists of two parts: mounting plane basis and sounder and strobe in a common body with factory mounted fire base.


Fully comply and certificated to EN54, part 3.

SKU: 528 Category:


  • Selectable sound level – LOW (82-92dB)* and HIGH (100-103dB)*
  • 32 sound types selеctable from the panel
  • Loop powered
  • Compatible with SensoIRIS addressable detectors series: T110, T110 IS, S130, S130 IS, M140 and M140 IS
  • EN54-3 Certified
  • Version with built-in isolator available – SensoIRIS BSST IS

*Depends on the selected sound type. The main tone type is 27 – the detailed description of the tone types is presented in the installation manual

Operating Voltage Range 15 – 32VDC (Nom. 28 VDC)
Maximal consumption at communication 470 μА @ 27VDC
Maximal consumption, tone type 27, low volume level 3 mА @ 27VDC
Maximal consumption, tone type 27, high volume level 10 mА @ 27VDC
Total number of SensoIRIS BSST at loop – low level 100 pcs.
Total number of SensoIRIS BSST at loop – high level 30 pcs.
Number of tone types 32
Frequency of the strobe flashing 1 Hz
Material ABS
Dimensions with mounted detector SensoIRIS T110 (IS)/ S130 (IS) 102 x 63mm
Dimensions with mounted detector SensoIRIS M140 (IS) 102 x 70mm

Product Documents

Marketing Documentation

SensoIRIS BSST - Datasheet
Updated at 30.01.2020 Size 0.34MB


SensoIRIS BSST - EN 54 Certificate EVPU
Updated at 20.05.2021 Size 5.04MB
SensoIRIS BSST - Declaration of Conformity
Updated at 30.01.2020 Size 0.32MB
SensoIRIS BSST - Declaration of Performance
Updated at 30.01.2020 Size 0.70MB

Technical Documentation

Product pictures