Electronic measurement instruments, namely, multimeters, clamp meters, insulation meters, earth resistance meters, residual current device testers, infrared thermometers, thermo-hygrometers, energy meters, moisture meters, sound meters, light meters, anemometers, tachometers, coating thickness gauges, ultrasonic thickness gauges, range finders, vibration meters, surface roughness testers, electrical phase comparators, and cable strength, thickness, tension, and stress testers; Computer networ...