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Wireless Receivers

GD-04D DTMF Module for GSM Communicator David

GD-04D DTMF Module for GSM Communicator David

The GD-04D DTMF module, which allows you to control David’s output relays by entering numeric codes (DTMF codes) on a telephone keypad during calls ..
GD-04R Radio module for GSM communicator David

GD-04R Radio module for GSM communicator David

The GD-04R radio module, which allows activations of inputs A to D via wireless buttons or detectors of the OASiS series and also provides David with the capability of output relay X or Y state tra..
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