C/O CRT DISPLAY; LARGE LCD DIGITAL READOUT; 3.5-DIGIT READOUT OF THICKNESS BETWEEN 0.007 IN. TO 1.999 IN. OF STEEL OR ALUMINUM; LINE OR DC(6 HR. BATTERY) OPERATION; INTERNAL BATTERY CHARGER; MULTIPLE MODE OR W/CONTACT PULSEECHO MEASUREMENT; LIQUID CRYSTAL DISPLAY; RESOLUTION 0.1 MIL ON 200 MIL RANGE; WIDE BAND TEST FREQUENCY