Device for testing the function and effectiveness of smoke detectors, carbon monoxide detectors and heat detectors featuring an aerosol spray; Digital door locks; Electronic devices for locating and tracking lost articles using radio frequency; Electronic locks incorporating biometric iris scanners; Programmable locking systems, consisting of electronic cylindrical locksets and keypads; Remote controlled thermal imaging systems, not for medical use; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Vehicle safety equipment, namely, an on-board vehicular surveillance system comprised of cameras and monitors for exposing and eliminating the blind spots on both sides of the vehicle; Wireless communication device featuring voice, data and image transmission including voice, text and picture messaging, a video and still image camera, also functional to purchase music, games, video and software applications over the air for downloading to the device; Wireless controllers to remotely monitor and control the function and status of other electrical, electronic, and mechanical devices or systems, namely, remote metering systems