Specifications Acceleration: 0.1-199.9m/s Velocity: 0.1-1999.9m/s Displacement: 0.001-1.999mm (p-p) (Velocity and displacement range is limited by acceleration 199.9 m/s) Measurement Accuracy: 5% Different vibration frequency selection: Acceleration: 10Hz-1KHz(LO);1KHz-15KHz(HI) Velocity: 10Hz-1KHz(LO) Displacement: 10Hz-1KHz(LO) LCD display: 3 digits display Vibration pickup: Piezoelectric ceramic accelerometer(shear-type) Data output: AC output peak (dispaly full scale) Load impedance: 10 k or more earphones can be connected Operating temperature: 0 - 40 C