Keepsafer and WEMA (We Monitor America) are businesses of Linear Corporation. For over four decades, Linear has been a leader in the development of radio frequency transmitters and receivers for the professional security market.
WEMA was organized in 1986 to provide Central Station services in support of Keepsafer SSD Wireless Home Security products.

Keepsafer uses an easy-to-connect, automatic telephone dialer that continuously links your system with our electronic communications center, staffed by trained security professionals. If there's an alarm, your system automatically calls our central station, which in turn immediately notifies local authorities and emergency personnel (as well as anyone you predesignate--relatives, neighbors, paramedics, even your work number.) Our advanced computer will know of the alarm within 60 seconds. Protection is round-the-clock, 365 days a year, regardless if you are home or away, awake or asleep.