Small size Vibration Tester. It is used for measuring periodic motion, check the imbalance and deflecting of moving machinery. It is designed for measuring of various mechanical vibration. Build with rugged construction that allows long time usage. Features: Can display the parameters of displacement, Velocity, and Acceleration simultaneously. In accordance with ISO 2954, used for periodic measurements, to detect out of balance, misalignment and other mechanical faults in rotating machines. Specially designed for easy on-site vibration measurement of all rotating machinery for quality control, commissioning, and predictive maintenance purposes. Individual high-quality accelerometer for accurate and repeatable measurements Bearing condition monitoring function Digital LCD display With Max. value hold and low battery indication Lightweight and easy to use Automatic power shut off AC output socket for headphones and recording (Headphone is optional and not included in the set) Can communicate with PC computer for statistics and printing by the optional cable and the software for RS232C interface (not included in the set) Specifications: Display: 4 digit LCD backlit Sensor: Piezoelectric Transducer Accuracy: 5% of reading + 2 digits Measurement range: Displacement: 0.001~4.000mm Equivalent Peak~Peak: 0.04~160.0 mil Acceleration: 0.1~400.0m/s2 Equivalent Peak: 0.3~1312ft/s2; 0.0~40g Velocity: 0.01~400.0mm/s True RMS: 0.004~16.00 inch/s Frequency: 5Hz~1kHz Frequency Range: Displacement: 10Hz~1kHz Acceleration: 10Hz~10kHz Velocity: 10Hz~1kHz Metric Imperial Conversion Analogue Output: AC output 0~2.0V peak full scale (load resistance: above 10k) PC interface: RS232C (cable and software not included in the set) Operating conditions: Temperature: 0~50°C Humidity: