Features:1. LCD display measurement result and conditions directly2. Selective vibration characteristic3. Using vibration sensor make it more accurate to measure4. Equipped two probes (S and L) to adapt the different measurement requirement5. Low battery indication, auto turn off function, LCD back light function, maximum value hold function, temperature unit C/Fselection.6. Suitable for mechanical watches, motors, fans and bearingsSpecification:Condition: 100% Brand NewModel: GM63BTechnical parameterTechnical specificationVibration pickupPiezoelectric ceramic accelerometer (shear-type)Measurement range of acceleration0.1-199.9m/s Measurement range of velocity0.1-199.9mm/s rmsMeasurement range of displacement0.001~1.999mm p-p Velocity and displacement range is limited by acceleration199.9m/s2Measurement accuracy5%2digitsMeasurement frequency range of acceleration10Hz-1KHz (LO) 1KHz-15KHz (HI)Measurement frequency range of velocity10Hz-1KHz (LO)Measurement frequency range of displacement10Hz-1KHz (LO)Displays update cycle1 secondsLCD display3 1/2 digits displaySingle outputAC output 2 V peak (display full scale) Load impedance 10Kor more earphones can be connectedPower supply9V battery(not included)Stand-by current15uAOperating current25mABattery life20 H continuous useAuto power-off functionTurns off automatically after 60 secondsLCD backlight function7 secondsOperating temperature range0-40Operating humidity range30-90%RHLow battery indication6.4V0.2VTemperature range-10-80Temperature accuracy2Weight: Approx. 1104g / 38.9ozSize: Approx. 72 * 35 * 145mm / 2.8 * 1.4 * 5.7inPackage List:1 Set of Vibration Meter1 * Box