1.measure acceleration,displacement,velocity 2.provide long and short probe 3. ... /coating thickness gauge, digital hygrothermograph, high voltage megohmmeter, ground resistance tester, electric leakage switch tester,gas detector.2.Specification ModalTL63Ameasuring ... ~1KHz (LO);1KHz~15KHz (HI)velocity: 10Hz~1KHz (LO)displacement: 10Hz~1KHz (LO)LCD display3 and a half digital displayvibration ...