Features Rotating And Reciprocating Machinery: Digital vibration tester is suitable for monitoring all kinds of vibration machinery equipment, especially rotating and reciprocating machinery vibration measurement. LCD Display: Vibrometer is used to measure periodic motion to check for unbalance and deflection of moving machinery. With LCD display and compact to carry. High Sensitivity Probe: Long and short probes are provided of this digital vibrometer, selected according to different vibration frequencies, and each probe is suitable for different conditions of measurement. AC Output Interface: Digital vibration tester is equipped with AC output interface, low power indicator automatic power off. Can measure acceleration, speed and displacement, and is widely used in machine building, power metallurgy and general aviation. Piezoelectric Effect: Specially designed for current measurement of various mechanical vibrations. This digital vibration meter is to provide data for quality control, uptime, and equipment maintenance. The piezoelectric effect of artificially polarized ceramics was used in the design. Spec: Item Type: High Accuracy Vibrometer Material: ABS Battery: 9V Polymers Battery X 1 (Shipped Without Battery) Measurement Range: Acceleration: 0.1-199.9m/ Peaking (Rms X V2) Speed: 0.1-199.9mm/S Rms Displacement: 0.001-1.999mm P-P Accuracy: ±5% ±2 Bits Frequency Response: Acceleration: 10Hz-1KHz (LO) 1KHz-15KHz (HI) Speed Or Displacement: 10Hz-1KHz Data Output: AC Output 2V Peaking, Load Test Mode: Acceleration, Speed, Displacement Sampling Rate: 1S Battery Low Indication Automatic Power Off How to Use: Operate according to the instructions. packing list: 1 x Digital Vibration Tester 1 x Digital Vibration Tester Head 1 x Manual 1 x Storage Case Package List 1 x Digital Vibration Tester 1 x Digital Vibration Tester Head 1 x Manual 1 x Storage Case