Batteries and battery chargers; Battery chargers; Distance measuring apparatus; Electronic device for monitoring and optimizing photovoltaic arrays; Galvanometers; Inverters; Power supplies; Regulators for use in scuba diving; Relays, electric; Voltmeters; Automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges; Battery powered meter for measuring the moisture content of coffee beans; Cell phone battery chargers; Electric sensors; Illumination regulators; Induction voltage regulators; Multi-function electronic device for use in children's rooms comprising a sound producing function, temperature gauge and also including a clock and nightlight; Parts for anti-theft automotive alarms, namely, electronic sensors, remote control transmitters and receivers for remotely operating land vehicles; Parts for anti-theft automotive alarms, namely, electronic sensors, remote control transmitters and receivers for remotely operating land vehicles; Vehicle tracking devices comprised of cellular radio modules, computer software and computer hardware, sensors, transmitters, receivers and global positioning satellite receivers, all for use in connection with vehicle tracking, vehicle monitoring and anti-theft vehicle alarms; Voltage regulators