42 Technical development and design of electronic control systems for engines, heating, venting and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, water sensors and high water sensors, detectors of fuel leaks; Technical development and design of electronic monitoring devices, namely, monitors for heating, venting, and air conditioning systems, door and window position sensors, monitors of lighting fixture status and function, monitors of electrical supply systems, monitors of the state of fuel containers, monitors of water level within and without a watercraft, monitors of fuel leaks, GPS navigation devices for vehicles with accommodation facilities, namely, caravans, houseboats, boats with cabins; consulting in connection with the design of electronic control systems for engines, heating, venting and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, water sensors and high water sensors, detectors of fuel leaks; consulting in connection with the design of electronic monitoring devices, namely, monitors for heating, venting, and air conditioning systems, door and window position sensors, monitors of lighting fixture status and function, monitors of electrical supply systems, monitors of the state of fuel containers, monitors of water level within and without a watercraft, monitors of fuel leaks, GPS navigation devices for vehicles with accommodation facilities, namely, caravans, houseboats, boats with cabins; design and development of software for operating electronic control systems for engines, heating, venting and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, water sensors and high water sensors, detectors of fuel leaks; design and development of software for operating electronic monitoring devices, namely, monitors for heating, venting, and air conditioning systems, door and window position sensors, monitors of lighting fixture status and function, monitors of electrical supply systems, monitors of the state of fuel containers, monitors of water level within and without a watercraft, monitors of fuel leaks, GPS navigation devices for vehicles with accommodation facilities, namely, caravans, houseboats, boats with cabins