... and wall materials, internal defects, and its computer_controlled auto_detection, digital display, high sensitivity, stable performance and so on. Therefore, IDEA_24ET ... 10 MHz 2 two independently selectable frequency 3 3 mixing unit (automatic mixer) 4 Real-time trace memory 4 ... including through type, interpolation type, flat type, point, rotary and other probe 17 has a unique non-constant-amplitude ...