... ): 1.5-200mm,0.06-8inchOperating principle: ULTROSONICMaterials measured: only 11 types of materials, including steel, cast iron, aluminum, red copper ... meters, ultrasonic level meters, ultrasonic water meters, Gas meters, ultrasonic thickness meters, ultrasonic flaw detectors and many the same series products ... make the reply as soon as possible. TM-8810 Ultr-thickness gauge