42 Technical development and design of electronic control systems for engines, heating and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, devices used to assist in leveling wheeled vehicles; Technical development and design of electronic monitoring devices, namely, monitors for heating 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 the horizontal level of wheeled vehicles, 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 and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, devices used to assist in leveling wheeled vehicles; consulting in connection with the design of electronic monitoring devices, namely, monitors for heating 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 the horizontal level of wheeled vehicles, 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 and air conditioning systems, door and window position sensors, lighting fixtures, electrical supply systems, fuel containers, devices used to assist in leveling wheeled vehicles; design and development of software for operating electronic monitoring devices, namely, monitors for heating 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 the horizontal level of wheeled vehicles, GPS navigation devices for vehicles with accommodation facilities, namely, caravans, houseboats, boats with cabins