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[FAQ]Clinton Keith asked about Relay shield

Sorry if the question wasn't clear. I don't want to"turn on and off a 24 VAC device". I want to detect when a 24 VAC device is turned off or on externally. I want to read the state of a 24 VAC line (on, 24 V or off, 0 V). I want to monitor when a ther

Clinton KeithOct 19,2016 19:53 PMAdd Comment


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