Alidades; Anemometers; Illuminometers; Battery testers; Combustible gas concentration detectors; Digital multimeters; Electrical outlet tester; Infrared thermometers, not for medical purposes; Insulation resistance meters; Measuring apparatus, namely, angle finders; Noise level meters; Oscillographs; Probes for testing integrated circuits; Thermal imaging cameras; Thermo-hygrometers; Voltage testers