About the product 1. This product adopts piezoelectric effect of artificial polarized ceramic for design. 2. It is suitable for monitoring of all kinds of vibrating mechanical facility, specially the vibration measurement of rotating and reciprocating machinery. 3. The unit can measure acceleration, velocity and displacement, which is widely used in mechanical manufacture, electric power metallurgy and general aviation etc. field. Features 1. LCD displays measurement result and conditions directly 2. Measure acceleration, velocity and displacement 3. Selective vibration characteristic 4. Use hi-sense of vibration sensor, measuring accurately 5. Equipped two probes (S and L) to adapt the different measurement requirement 6. Provide a magnetic probe to fit the condition uneasy hold on by hand 7. Low battery indication 8. Auto turn off function 9. LCD back light function 10. Maximum value hold function 11. Temperature unit Celsius Degree / Fahrenheit Degree selection