Dakota Alert M538-HT
http://www.dakotaalert.com/catb2b1/product_info.php?cPath=36_46&products_id=95
The M538-HT is a hand-held MURS transceiver that will receive alert signals from the MURS Alert™ transmitter and also can be used for two-way voice communications between other MURS transceivers.
It also interfaces with all sorts of motion detectors.
