Specifications Vibration Meter GM63B Measuring Range Acceleration : 0.1 199.9m/s Velocity : 0.1 1999m/s Displacement : 0.001 1999.9mm P-P Accuracy 5% Vibration Pickup Piezoelectric Ceramic Accelerometer (shear-type) Measurement Frequency Range of Acceleration 10Hz 1Hz (LO), 1KHz 15KHz (HI) Measurement Frequency Range of Velocity 10Hz 1KHz (LO) Measurement Frequency Range of Displacement 10Hz 1KHz (LO) LCD Display 3.5 Digits Display Single Output No Max Hold Function Temperature Selection Operation Condition Display Operation Condition 0 - 40C Unit Size 80 * 38 * 150mm Standard Quantity Per Carton 12PCS Power 9V Battery