Ordering Code: COMMS0004

The iSubC two channel diver communications set is a cost effective, compact, portable and robust by design, diver communication set.

It is powered by an internal sealed 12V lead acid battery and the unit is set up for simplex communications, where each diver is connected to the communication set using a single twisted screened pair cable.

The unit is set in listen mode until the supervisor uses the Push-To-Talk (PTT) switch on the front panel to communicate with one or both divers.

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SKU COMMS0004 Category


Optional items in this mode are a fist microphone with PTT switch or a headset with PTT switch.

The PTT switch is not used in this mode and the communications are permanently open. The supervisor can talk to the divers and they can talk to each other.

Separate send and receive volume controls are fitted, and neither volume control can be turned totally “off”. A recording outlet socket is also provided in the unit, in order to connect for the recording of communications.


Size : 270mm wide x 240mm hight x 120mm deep

Weight : 2kg including batteries

Power Outlet : 3.5 Watts continuous into 8 Ω 10W peak

Power Supply : 230VAC

Battery Life : 12 hours with 10% talk time

Input : Balanced transformer isolated suitable for most dynamic microphones up to 200 Ω impedance

Output : Suitable for dynamic earphones from 8 to 200 Ω

Optional accessories : Headset with boom microphone and PTT switch

Contact Information



iSubC Diving Equipment Ltd
Units 10 Holly Close
Whitehills Business Park
Westby With Plumptons

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