High sensitivity provides high precision - this vibration meter is equipped with high-sensitivity probes to accurate measurement, including long and short probes, each suitable for measurement in different situations. Pen-style operation is convenient - this vibration meter pen adopts a portable design, which is easy to hold and use. It comes with a plastic shell for easy storage. LCD backlight provides clear readings - this vibration meter is equipped with an LCD backlight, which can intuitively and clearly display the measured values. It supports different vibration frequency selections and is easy to operate. Wide application - this vibration meter tester is a good tool for measuring vibration. It is widely used in electricity, petrochemical, machinery manufacturing, metallurgy, vehicles, etc. Purpose - this vibration meter instrument (also known as a vibration intensity meter) uses a piezoelectric accelerometer to convert vibration signals into electrical signals, analyze the input, and display acceleration, velocity, and displacement. Measurement method: piezoelectric ceramic accelerometer Displacement measurement range: 0.001-1.999mm Velocity measurement frequency: 10HZ-1KHZ Displacement measurement frequency: 10HZ-1KHZ Power supply: 2 x 1.5vAA batteries (not included) Color: White Material: Plastic Package Contents: 1 x vibrometer 1 x long probe 1 x short probe 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.