... can use the upper monitor to control it by cable and wireless network .The updating of various softeware, can be ... ,2,4,8,16 Operation mode Single probe transmitter and receiver, dual probe transmitter and receiverScan mode A,B,C type scan Surplus ... (Optional)Detector modepositive, negative, bi-directional, radio frequency (RF)Peak memoryCan choose echo peak memory display,background peak wave ...