... 0.3~200mm(Glass) 4~80mm(High temperature), 3~50mm(Gray Iron) HIGH ACCURACY ULTRASONIC THICKNESS GAUGEThe ultrasonic thickness gauge Model ... , cast iron, aluminum, red copper, zinc, quartz glass, polyethylene, PVC, gray cast iron and nodular cast iron. Thickness measurements are made ... 0.3~200mm(Glass)4~80mm(High temperature), 3~50mm(Gray Iron)Notes: Thickness range depends on material transducer type, ...