[ Slide calipers; ] Measuring instruments, namely, [ radiation measurement instruments, rulers, ] resistance measuring instruments; Gauges, namely, level gauges, [ depth gauges, gasoline gauges; ] Anemometers; Telemeters; Hygrometers; Tachometers; Photometers; Flow meters; Calorimeters; Electronic ultrasonic test equipment, namely, [ ultrasonic flaw detectors, ] thickness testers and hardness testers, for non-medical use; Surface roughness testing machines and instruments; Digital pH meters...