LED blinking light/sounder combination
  • very economical visual and acoustic alarm
  • certified for use in Ex-Zones 0, 1 and 2!
  • compact design with a diameter of just 88 mm
  • alarm operated via certified zener barriers or galvanic isolators
  • 49 loud tones at 100 dB (A); super-bright LEDs in red, green, blue and yellow/amber for all applications
  • volume control
  • can be operated as combination unit or separately
  • very well suited for fire alarm systems and direct control due to low power consumption
  • self-synchronising sounder for clear tone perception
  • 2 different externally controllable tones

Here you can find suitable zener barriers

protection system

operating between +60 / –40 °C

EurAsian Conformity

Technical data

Electrical dataIS-mC1
Rated voltage24 V DC
Operating range16 V – 28 V
Nominal current consumption48 mA¹

1 typical for connection to 24 V DC via 28 V / 300 Ω zener barrier. Power must be connected via a zener barrier (max. 28 V DC, 93 mA DC, 0.66 W) or galvanic isolator, specified by the system certificate

Choose your LED in one of the following colours: yellow/amber, red, green, blue

Further technical details, performance curves and dimensions can be found in the Download Section on this page under Product Sheet.


Description Language Type Size Download

Product Sheet

  • English
pdf 2.2 MB Download

Operation manual

  • English
pdf 9.8 MB Download


  • English
pdf 79 KB Download

Ordering details

Ordering detailsIS-mC1
Colour LEDRated voltage24 V DC
yellow/amberArticle number32035804000
redArticle number32035805000
greenArticle number32035806000
blueArticle number32035807000

Please indicate the requested approval in your order. Approvals may differ for some product variations or combinations. Please contact us.

Article numbers for products with further lens colours and voltages on request.