Handheld Portable Digital Vibration Meter Tester Vibrometer Mechanical Bearing Fault Detector Item Type: Vibration Meter Material: ABS Color: As shown in the picture Acceleration Measurement Range: 0.1~199.9m/s peak Speed ​​Measurement Range: 0.1~199.9s effective value Displacement Measurement Range: 0.001~1.999mm peak Measurement Error: ±5%±2digits (ie 2 words) LCD Display: 3 and a half digits display Acceleration Measurement Frequency Range: 10Hz~1KHz 1KHz~15KHz Speed ​​Measurement Frequency Range: 10Hz~1KHz Frequency Range of Displacement Measurement: 10Hz~1KHz Display Data Replacement Cycle: 1 second Power Supply: 1 x 9V alkaline battery (not included) Data Output: AC output 2V peak (display full range) Load: 10kΩ or high-impedance headphones can be connected Quiescent Current: ≤20μA Working Current: ≤25mA Automatic Shutdown Function: Automatic shutdown within one minute of no operation LCD Backlight Function: Turn off after 7 seconds of no-operation Operating Temperature Range: 0~40℃ Working Humidity Range: 30%~90%RH How e Get 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.