Ammeters; Anemometers; Dynamometers; Hygrometers; Telemeters; Air analysis apparatus; Apparatus for testing gas, liquids and solids; Gas testing instruments; Instruments for measuring length; Measuring apparatus for temperature and humidity levels in gases and solid substances; Meteorological instruments; Surveying chains; Surveying instruments; Testing apparatus for testing printed circuit boards; Thermometers not for medical purposes; Acoustic meters; Angle gauges; Automatic pill counters; ...