IDEAL FOR FIXED LOCATIONS LIKE HOMES, SHOPS, AND OFFICES. The Dakota Alert MURS Base Station Radio Kit consists of one MURS Alert transmitter and one M538-BS base station transceiver. This kit is ideal for monitoring activity in fixed locations such as homes, shops or offices. The MURS Alert Transmitter allows you to monitor activity in remote locations up to several miles away. The MURS transmitter utilizes passive infrared sensor technology to send alert signals to the MURS transceivers in order to notify you that someone has entered a monitored area. The transmitter can send 4 different alert messages to the transceiver. The alert signals are in spoken English and are easily selected at the transmitter so that separate zones can be monitored at the same time. The M538-BS is a base station MURS transceiver that receives alert signals from the transmitter. It can also be used for two-way voice communications between other MURS transceivers. This base station has five channels and 38 sub channels to help you communicate with other users. It is powered by a plug-in transformer and can communicate over distances of several miles. The FCC also allows you to use MURS without a license. Although other radio services require a license, MURS is license-free.