Camera hardware systems for IP (Internet protocol) video surveillance; Car video recorders; Digital music system that synchronizes digital music files stored on a home unit and a car unit; DVR cards; Electronic devices, namely, radio frequency repeaters used in long range communication for tracking and monitoring energy usage; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; Humidity sensor with integrated digital and analog output circuitry used in automotive, appliance and light industrial applications to sense both relative humidity and temperature environmental conditions; Keyless entry system and keyless ignition switch system for automotive vehicles comprised of a microprocessor, electronic signal receiver, and keyfob with electronic signal transponder; Locomotive event recorders; Rearview cameras for vehicles; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Sensors and detector units for use in controlling the actuation and operation of automotive safety apparatus and equipment; Time lapse image recorder; 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