Ammeters; Anemometers; Hygrometers; Illuminometers; Ohmmeters; Thermo-hygrometers; Analog multimeters; Digital multimeters; Distance measuring apparatus; Electronic ultrasonic test equipment, namely, ultrasonic flaw detectors, thickness testers and hardness testers, for non-medical use; Gas detectors for detecting the presence of gas; Infrared thermometers, not for medical purposes; Noise level meters; Probes for testing integrated circuits; Voltage testers