apparatus for analysing or detecting liquids or gases or substances in liquids or gases; alcohol and drugs testing equipment and breathing tubes for such equipment; electronic calculators for estimating liquid or gas analysis; proximity detectors and control circuits for use in connection with motor vehicles; apparatus for sensing presence of movement of human beings; electrical or electronic control apparatus; alarms and gates for controlling the movement of human beings and/or motor vehicle...

electrical apparatus for analyzing or detecting liquids or gases or substances in liquids or gases