Manufacture of instruments and appliances for measuring, testing and navigation (PKD 26.51.Z)

This subclass includes the production of aircraft and marine instruments and apparatus for searching, detecting, navigation and control; the production of automatic control and regulation systems for applications (for example for heating, air conditioning, refrigeration and instrumentation); the production of instruments and apparatus for measuring, displaying, indicating, recording, transmitting and controlling temperature, humidity, pressure, combustion, flow, level, viscosity, density, acidity, concentration, rotation; the production of totalisers (that is recording devices), flow meters and counting instruments; the production of instruments for measuring and controlling the parameters of electricity and electrical signals; the production of instruments and apparatus for analytical laboratories for chemical or physical analysis of the composition or concentration of samples of solid, liquid, gaseous or mixed substances; the production of other measuring and control instruments and apparatus and parts thereof; the production of non-electrical measuring, control and navigation instruments and apparatus, excluding simple mechanical tools.