Scales; Anemometers; Barometers; Telemeters; Hygrometers; Angle gauges; Clinometers; Surveyors' levels; Meteorological instruments; Tachometers; Devices for measuring wind speed; Acidimeters for batteries; Thermometers, not for medical purposes; Frequency meters; Refractometers; Galvanometers; Electricity meters; Electrical test apparatus; Electric loss indicators; Electric measuring devices; Apparatus for sound level measurement; Infrared thermometers; Digital multimeters