9 Physical, electric, electronic measuring, signaling, checking, control and monitoring equipment and apparatus, namely, electrical and electronic sensors and controllers for air treatment devices, measurement and control devices for controlling and measuring brake pressure for electric or pressurized medium operated brake systems for land vehicles; mechanically, pneumatically, hydraulically, and electrically operated, controlled and controlling measuring, signaling, checking, regulating, amplifying and monitoring apparatus and equipment for controlling and measuring brake pressure in vehicle brakes, road vehicles, commercial vehicles and rail vehicles and vehicle trailers; structural parts for the aforesaid equipment and apparatus; all of the aforesaid goods for road vehicles, commercial vehicles, rail vehicles, vehicle brakes, and vehicle trailers