Anemometers; Electric meters; Hygrometers; Magnifying glasses; Manometers; Measuring apparatus, namely, rain gauges; Measuring rulers; Measuring instrumentation and apparatus, namely, digitizers; Micrometers; Pressure indicators; Pressure measuring apparatus; Scales; Surveying machines and instruments; Surveyors' levels; Tachometers; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of ...