... .provide long and short probe 3.piezoelectric ceramic accelerometer 4.backlight 1.IntroductionWe are a developing,design, ... , ultrasonic thickness gauge, film/coating thickness gauge, digital hygrothermograph, high voltage megohmmeter, ground resistance tester, ... (LO)displacement: 10Hz~1KHz (LO)LCD display3 and a half digital displayvibration acquisitionpiezoelectric ceramic accelerometer ( shear type ...