Divers' chamber comms

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The Divex divers' chamber communications box allows clear communications between the chamber lock and external helium speech unscrambler.

Mounted within the entry or main lock it allows communications to the saturation control unscrambler or the HeliCom™ matrix unscrambler.


Chamber communications box Chamber communications box Chamber communications box

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Chamber Comms Box 2 - Prod.jpg

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  • Call switch
  • Headset select switch
  • Headphone socket
  • Volume control
  • Robust, stainless steel enclosure (316 grade)
  • Mounting lugs for easy installation
  • Internal PCB mounted on an easily removed plate to improve installation
  • Single PCB terminal accepts all incoming wiring making cable termination to the comms box very easy
  • Low profile components
  • Flush mount chrome call switch
  • Volume control when using headset
  • Built in panel microphone
  • Electret mic insert
  • Frequency response: 50Hz to 13kHz
  • Sensitivity: 60dB ±3dB
  • Impedance: 1kΩ
  • Standard headset jacks allow for a wider range of headsets to be used
  • Flush mount headset select switch for selecting either panel microphone/speaker or headset


Item Order Code
Chamber communications box





Document Document Type Download


Chamber communications box Datasheet

CO-MDS-496 R1


Chamber communications box Drawing

CO435S1 R0