Electronic devices for locating and tracking lost articles, people, pets using radio frequency, global positioning systems, cellular communication networks; Cover for an electric door bell that attaches to the doorbell to block its use; Electronic navigational and positioning apparatus and instruments; Pet collar accessories, namely, safety lights; Smoke alarms; Fire alarm and emergency evacuation devices, namely, fire alarm control panels, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; Gas alarms; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Gas sensors for measuring gas concentration; Electronic warning horn; Burglar alarms; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Electric and electronic video surveillance installations; Electrical and electronic burglar alarms; Surface acoustic wave sensors
Electrical and Scientific Apparatus