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  • +49 6321 9127-0

As a specialist in Audio Surveillance we can offer many solutions for various applications.


Audio Transmitter

  • Miniaturized Audio Transmitter, with or without radio control
  • Digital/Analog Transmitter, with or without store & download
  • Digital Spread Spectrum Systems
  • Frequency Hopping Systems
  • Audio Transmitter with BURST transmission
  • Security Transmitter with alarm and tracking function


Audio Recorder

  • Miniaturized digital Audio Recorder
  • Covert Audio Recorder
  • Mono or stereo recording, with or without compression
  • Audio COFDM-BURST transmission with store & download option
  • 180 days audio recording and simultaneously real-time listening
  • Cancellation of disturbing noise by adaptive digital filters


Optical Acoustic Laser Microphone

  • Acoustic surveillance and observation by advanced laser technology up to 300 m
  • Quick setup and exact targeting, using an integrated, parallax-free camera
  • Independent from viewing-angle to target


Important note

Please note that we only deliver to security agencies and services, authorized organizations and companies and to selected partner companies.
For further information please contact us directly, either by phone on +49 6321 9127-0 or with a short contact mail - we will call you back.



SIM Secure Information Management GmbH is a leading manufacturer and provider of professional video, audio and special technology solutions. We work closely with national and international security and defense authorities. To meet the end-user requirements the design of our products is mainly inspired in close cooperation with our government customers.