Roland:

What we normally use for this type of application is a long range transmitter and receiver (500 to 700 feet). If it is a mailbox that the customer wants notification for, we use a magnetic contact on the mailbox door, that is connected to the long range transmitter. The digital receiver is installed in the customers house where it is connected directly to a digital input of a Stargate, or a Powerflash module. If a Powerflash module is used, it sends an X-10 signal when the mailbox is opened. What's nice about these digital receivers is that they are available in 4 and 8 channel versions so you use use other wireless transmitters in other locations using the same receiver. This product even has a wireless smoke detector that can be used as a transmitter on one of the channels.

Robert
RCI Automation
rciautomation@compuserve.com
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