... the industry proven EPOCH 4 model, including a 25MHz RF bandwidth to permit testing of thin materials, narrowband filters ... a USB communications port, Echo-Echo in RF mode, Interface Gate in RF mode, Automatic or Manual Polarity Detection in ... /920/930 Technical parameterName LKUT910LKUT920LKUT930Display All-digital,true color LCDAll-digital,true color LCDAll-digital,true color LCDDetection range(0-6000 ...