Atkinson Dynamics Intercoms for Fire/EMS

Atkinson Dynamics Intercoms for Fire/EMS

  • Rugged and reliable intercom system to receive, amplify, and send signals
  • Two- or three-way communication
  • Integrated filtering to reduce outside noise and interference
  • Push-to-talk and hands-free intercom models can be paired with flush, swivel, or wall mount speakers and hand-held microphone
  • Multi-voltage, 12/24 Vdc
  • Sealed, corrosion-resistant cast aluminum housing
  • Two-year warranty

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Atkinson Dynamics intercoms provide reliable communication with superior sound quality. Each basic intercom is fully equipped to receive, amplify, and send signals.

A volume control on the face of each unit allows the user to adjust the output level to overcome noisy environments. A talk/listen switch activates the built-in microphone and defaults to the listen position when released.

The rugged exterior of Atkinson Dynamics intercoms provides protection against the elements in any environment. The corrosion-resistant cast aluminum housing is carefully sealed to keep the interior free of moisture and dust.

Atkinson intercoms can be installed as two or three-way communication systems.
(See back for examples.) Various systems are available, including the standard “master” and “hands-free” system, a remote speaker two-way system, and other systems utilizing various options, including headset and microphone jacks.

Every Atkinson intercom is multi-volt and can work on either 12 and 24 volt systems without any additional parts or labor for installation. Also, each Atkinson intercom is designed with internal noise filters and circuitry to produce a clear, quality sound for premium performance.


Output Impedance 8 ohms at 8 V
Input Impedance 220-10,000 ohms
Voltage All models are 12 Vdc unless otherwise noted, contact the factory for availability of 24 Vdc or other voltage models.
Physical Specifications
Length 6.5 in (16.5 cm)
Width 3.9 in (99.0 cm)
Height 9.9 in (25.2 cm)
Ship Weight
  11.0 lbs (4.9 kg)

Ordering Info

Model Types
AD26D-ZHands-free intercom, defaults to talk mode, 12/24 Vdc, use with master intercom
AD26-8-M44-ZIntercom, Push to talk, pre-amplifier, remote volume, 12/24 Vdc, use with ADSS-25 or ADSF-25
AD26C-ZMaster intercom, push to talk, 12/24 VDC, use with hands-free intercom
AD26C-1-ZIntercom, 12/24 Vdc, master intercom, power audio in single cable
AD26C-7-ZMaster intercom, push to talk, microphone ready, 12/24 Vdc, use with hands-free intercom
AD26-ZIntercom, Push to talk, 12/24 Vdc
AD26D-1-Z12/24 Vdc, auxiliary intercom, use with AD26C-1-Z
ADSF-25-ZSpeaker, 25 W, flush mount
ADSS-25-ZSpeaker, 25 W, swivel mount