Magnets for industrial purposes; Carbon monoxide detectors; Electronic testing equipment, namely, sound level meters; Digital multimeters; Carbon dioxide detectors; Gas testing instruments; Alarms for the detection of inflammable gases; Anemometers; Hygrometers; Thermo-hygrometers; Measuring apparatus, namely, clamp meters for measuring electricity; Digital pH meters; Water testing instrumentation for monitoring and detecting contamination; Infrared thermometers, not for medical purposes; Sal...