EM-C83 replaced by EM-1/SM - external speaker &  microphone

• Three telephone number capability
• 16 seconds – voice storage
• Electronic voice verification
• 16 digit – dial capabilities
• Programmable via key pad
• Two relays & fully programmable features
• Line powered
• Voice alert – fault conditions & call progress
• Models configuration – internal or external speaker & mic.
• Back up battery

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