Measuring equipment and apparatus, namely, gauges, in particular in relation to pressure, absolute pressure, differential pressure, temperature, quantity of flow volume, humidity, force, acceleration, path, angle, speed, density, and level; manometers; mano-vacuum meters; barometers; altimeters; thermometers, not for medical purposes; thermocouple; thermo-hydrometers; hydrometers; pressure sensors; flow meters; pressure gauges; measuring apparatus, namely, measuring converters; electric measu...