home security system consisting of electric door contacts, motion sensors, glass break sensors, door entry key pads, alarm sirens, strobe lights, dialers for telephoning others; and home security system parts, namely, electric door contacts, motion sensors, glass break sensors, door entry key pads, alarm sirens, strobe lights, dialers for telephoning others

home security system consisting of electric door contacts, motion sensors, glass break sensors, door entry key pads, alarm sirens, strobe lights, dialers for telephoning others; and home security system parts, namely, electric door contacts, motion sensors, glass break sensors, door entry key pads, alarm sirens, strobe lights, dialers for telephoning others