*s (such steel, cast iron, aluminum, copper and so on), plastic, ceramics, composites, epoxies, s and other ultrasonic well-conductive materials. *Sealed metal case delicate design, special designed for defense against bad site environment, it can anti vibration, shock and electromagnetic interference. *With HD colorful LCD display and intelligent operation interface, it can display the measurement results intuitively and provide a good display experience to user. *With two thickness measurement modes: Pulse- Echo mode and Echo-Echo model, it can measure the thickness through the coating without calculating the coating thickness. *With large storage capacity and lower power design, it can standby super long time above months.