Vibration Meter, Acceleration Measurement - Minimum 0.01 g, Acceleration Measurement - Maximum 19.99 g, Maximum Velocity Measured 19.99 in/sec, Minimum Velocity Measured 0.01 in/sec, Acceleration Max Resolution 19.99 g, Velocity Max Resolution 19.99 in/sec, Auto Power Off -, Batteries Included Yes, Alert Type Vibration, Battery Run Time 20 hr, Battery Size AA, Number of Batteries Required 2, Calibration Certificate Type NIST, Digital Display Screen Type LCD, Manufacturer Warranty Length 1 yr