Since you guys are talking about triggering the MSC-400, I thought I'd throw my question in here instead of starting a new thread.

Can sensors such as the Xantech Current Sensing Module ([Link: smarthome.com]) and the Magnetic Field Sensor Module ([Link: smarthome.com]) be plugged directly into the MSC-400? The descriptions on various devices aren't totally clear, I get that they mostly have tolerances around 5-25 Volts, but is that voltage going directly into the MSC-400, or is that voltage interpreted at the sensor, and then a different signal is sent to the MSC-400?

Also, what are the best places to shop online for some of the more obscure devices like these?