Linear LLC offers a full spectrum of advanced alarm monitoring components, on a worldwide basis, for the residential and commercial security market. It has been designing and building for this market for over 44 years and is regarded as one of the founders and leaders of the contemporary security industry. The company has a well-earned reputation in the radio frequency (RF) or wireless approach to alarm signal transmission, and is acknowledged as having the greatest concentration of RF engineering experience and talent in the security products field. One of the first companies to offer a Personal Emergency Response System to the industry for transmission of a medical emergency condition.