Anemometers; Photometers; Air quality measurement apparatus, namely, particle counters; Digital multimeters; Electrical outlet tester; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Gas testing instruments; Infrared thermometers, not for medical purposes; Measuring apparatus, namely, clamp meters for measuring electricity; Measuring instrumentation and apparatus, namely, digitizers; Resis...