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The Viking Electronics RC-4A network controlled relay module is a network relay switch with 4 inputs and 4 outputs. An input status change on one RC-4A can trigger a timed or latching relay activation output of another RC-4A on the same LAN while simultaneously sending an email or text message alert. A secure web interface gives users control of relay output activation and real-time monitoring of input sensor status triggers from machinery, access control and alarm systems.