Hometown Security proudly recommends commercial rated alarm/access/fire panels designed and build in the United States of America by Digital Monitoring Products (DMP). DMP utilizes 900 MHz frequency-hopping spread-spectrum two-way wireless devices to ensure clear and accurate signal transmissions without interference in practically any environment. With the optional high power wireless transmitter, the wireless range can be up to 1.5 miles line of sight. No other alarm panel can match that. We have systems for small commercial sites up to large, multi-building sites. We have panels that can handle from 10 to over 500 zones and provide over 500 outputs for more flexibility. These panels can also be used for both alarms and access control to make them an even better value than separate systems.