... 1Set FOB Price: USD280-400 ISO9001:2000 certificate Thickness measurement gauge CH-100A is a kind of special equipment which ... works based on the ultrasonic measurement principle and micro-processing technology, used to measure the ... 200.0mm≤3%Hmm (H for the actual thickness)Measurement Frequency2 times per secondSound Velocity Range1000~9999m/sShutdown Time85sWork ...