Feature:1. Simple to use, the structure is compact, portable for carrying along with measurement.2. Digital display LCD large screen, visually display measurement value and state.3. It can measure acceleration, speed and displacement, and choose different vibration frequency characteristics.4. Highly sensitive probe, accurate measurement, equipped with AC signal output interface.5. With low battery indicator function, automatic shutdown function, LCD backlight function.Specification:Item Type: Vibration MeterMaterial: ABSColor: As shown in the pictureAcceleration Measurement Range: 0.1~199.9m/s peakSpeed Measurement Range: 0.1~199.9s effective valueDisplacement Measurement Range: 0.001~1.999mm peakMeasurement Error: 5%2digits (ie 2 words)LCD Display: 3 and a half digits displayAcceleration Measurement Frequency Range: 10Hz~1KHz 1KHz~15KHzSpeed Measurement Frequency Range: 10Hz~1KHzFrequency Range of Displacement Measurement: 10Hz~1KHzDisplay Data Replacement Cycle: 1 secondPower Supply: 1 x 9V alkaline battery (not included)Data Output: AC output 2V peak (display full range) Load: 10k or high-impedance headphones can be connectedQuiescent Current: 20AWorking Current: 25mAAutomatic Shutdown Function: Automatic shutdown within one minute of no operationLCD Backlight Function: Turn off after 7 seconds of no-operationOperating Temperature Range: 0~40Working Humidity Range: 30%~90%RHHow to UseGet the product, open the power cover of the back cover, install the battery, close the back cover, lightly press MEAS/ON to turn on, long press MEAS/ON to measure immediately, long press MEAS/ON, release the button The data can be displayed. LO/HI is the switch of high and low frequency, it can also be calibrated to zero, and the unit of A/V/D can be switched. The product is simple to operate and compact..Package List:1 x Vibration Meter(Battery Not Included)1 x Instruction Manual1 x Long Probe1 x Short Probe (installed on the host)1 x Packing Box