Amron International Amcom ™ II 2820A-4003 Double Lock Chamber Communicator

SKU: c3329460d5e1 Categories: , , , ,


The Amcom ™ II 2820A-4003 Double Lock Chamber Communicator is a fully featured hard-wire, two-lock communicator system. The Amcom ™ II has independent volume controls (operator, inner lock, and outer lock), as well as separate on/off controls for each lock.


  • Two Modes of Operation – 2-Wire Mode and/or 4-Wire Mode

  • Separate volume controls for operator and each lock

  • Separate on/off controls for each lock

  • External 12 VDC connection

Amcom ™ II 2820A-4003 Double Lock Chamber Communicator Includes

  • (1) Hand-Held Push-to-Talk Microphone: Part Number 2405-28

  • (1) 12 VDC Slide Terminal Gel-Cell Rechargeable Battery: Part Number 2890-05 – Expected life: 20 hrs

  • (1) MS Connector – 14 Pin Female: Part Number MS-3106A-20-27S

  • (1) MS Cable Clamp 20/22 Shell: Part Number MS-3057-12A

  • (1) Power Cord: Part Number P-2392

  • (1) User Manual


  • Power: 115/230 VAC, 50-60Hz

  • Audio Output Power: 20 Watts

  • Back-up Power: Rechargeable 12 VDC Slide Terminal Gel Cell

  • Rear Panel Connection: MS 14 Pin Male with Mating Connector

  • Entertainment Input: 2 RCA jacks for (2820A-4003E only) audio input, signal is mixed internally for a stereo input/monaural output

  • Dimensions: 8 in. H x 10.125 in. W x 7.5 in. D(20.3 cm x 25.7 cm x 19.1 cm)

  • Weight: 15 lbs (3.6 kg)

Tech Note

All communicators will transfer topside noise to the diver when using the radio speaker only. To eliminate background noise and achieve clear concise communications, use a Push-to-Talk microphone, headset, or a Remote Walk-and-Talk with a headset.

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