THIS BRAND NEW 6320 PORTABLE DIGITAL VIBRATION METER IS SPECIALLY DESIGNED FOR EASY ON SITE OVERALL VIBRATION LEVEL MEASUREMENT FOR ROTATING AND RECIPROCATING MACHINE AND PARTS FOR QUALITY CONTROL AND PREVENTATIVE MAINTENANCE IN PLANTS, MACHINE SHOP, AUTO SHOP AND OTHER INDUSTRIAL FIELDS. IT TESTS THE ACCELERATION, VELOCITY AND DISPLACEMENT TO DETECT OUT-OF-BALANCE, MISALIGNMENT AND OTHER MECHANICAL FAULT TO PERFORM FAILURE ANALYSIS. * Please see more specifications on the pictures, Don"t buy others" fakes. Only buy from Gowe Industrial can enjoy after-care service. * SPECIFICATIONS: 18MM LCD 4-DIGIT DISPLAY WITH UNITS AND BATTERY SYMBOL PIEZOELECTRIC ACCELEROMETER TRANSDUCER BEARING CONDITION MONITORING FUNCTION MEASURING RANGE: VELOCITY (10Hz-1KHz:0. 1-200 MM/S TRUE RMS ACCELERATION (10Hz-1KHz; 10Hz-10KHz): 0.1-200M/S2 DISPLACEMENT (10Hz-1KHz): 0.001-2.0MM ACCURACY: ±0.5%+2 DIGITS POWER SUPPLY: 4X1.5V AA (UM-3) BATTERY POWER AUTO OR MANUAL OFF PC RS232 INTERFACE (CABLE & SOFTWARE ARE OPTIONAL) IN ACCORDANCE WITH ISO 2954,ISO2372, BS4675 or VDI 2056 OPERATING CONDITIONS: 32-122° F (TEMPERATURE) BELOW 90%RH (HUMIDITY) DIMENSION: 160X68X32mm (6.3X2.7X1.2") WEIGHT:181g/0. 4LB. (WITHOUT BATTERY)