SensoIRIS CSOU IS is a sounder with integrated base for SensoIRIS detectors and with built-in isolator module. SensoIRIS CSOU IS is compatible for mounting on all models  standard bases for SensoIRIS devices – SensoIRIS B124 and SensoIRIS B124-HP

The sounder supports 32 different tone types at two sound levels. The tone type and sound level are programmed from the control panel.

The SensoIRIS CSOU IS is compatible for operation with SensoIRIS analogue – addressable detectors series: T110 (IS), S130 (IS) and M140 (IS).

The device also has a build-in isolator module for protection against short-circuit.



  • One point of installation for detector, sounder and visual indicator with no additional wiring
  • 32 tone types selectable from the panel
  • Up to 100 sounders on loop (on low level sound)
  • Loop synchronization for uniform and clear alarm signal
  • Protection Degree -IP21C, type A
  • Sounder Type: A
  • Loop powered
  • Compatible with SensoIRIS detector series
  • Mounts directly on standard B124 or B124-HP to save time
  • Optional cover when the base is used only as a sounder
  • Build-in isolator module
Operating Voltage Range 16 – 32VDC
Maximal consumption at communication 470 μА @ 27VDC
Maximal consumption (main tone type 27:
   – low volume level 3 mА @ 27VDC
   – high volume level 10 mА @ 27VDC
Power volume:
   – low volume (up to 100 pcs     sounders* to the loop). ~ 81dB (A) ± 3dB @ 1m
   – high volume (up to 30 pcs sounders* to the loop)  ~ 88dB (A) ± 3dB @ 1m
Wire Gauge for terminals 0.4 – 2.0mm2
Material and color ABS / White
Dimensions 105 х 22 mm

Product Documents


SensoIRIS CSOU IS - EN 54 Certificate EVPU
Updated at 12.01.2024 Size 1.41MB
SensoIRIS CSOU IS - Declaration of Conformity
Updated at 12.01.2024 Size 0.23MB
SensoIRIS CSOU IS - Declaration of Performance
Updated at 12.01.2024 Size 0.48MB

Marketing Documentation

SensoIRIS CSOU IS - Datasheet
Updated at 07.07.2023 Size 0.17MB
SensoIRIS CSOU IS - Brochure
Updated at 19.04.2023 Size 0.65MB

Technical Documentation

SensoIRIS CSOU IS - Manual
Updated at 22.02.2024 Size 0.52MB

Product pictures