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Posted by HeatPro on November 09, 2007 at 11:21:53:
In Reply to: Weil Mclain Ultra connected to security system posted by Dave OH on November 09, 2007 at 10:55:59:
As alarms are best used with an isolation circuit, you can use any voltage that can operate a relay that would activate an alarm. Thus any circuit that wouldn't be overloaded by using some of the power that you can access when a circuit opens or closes can be used as a control signal to an alarm.