Digital multimeters; Frequency meters; Inclinometers; Magnifying glasses (optics); Reading aids in the form of magnifying glasses; Manometers; Microscopes; Eye refractometers; Refractometers; Endoscopes for industrial use; Endoscopes for technical purposes; Digital thermometers, other than for medical purposes; Electronic thermometers, other than for medical use; Infrared thermometers; Technical thermometers; Thermometers, not for medical purposes; Water meters; Level meters; Liquid level meters; Electrical measuring apparatus; Laser instruments, other than for medical use; Instruments for measuring pressure; Clamp meters; Gas meters; Humidity meters; Moisture meters; PH meters; Soil moisture meters; Voltage meters