Features: Screen flipping; Curve display; Flashlight; Screen brightness; Switch acceleration measurement between high and low frequency; High frequency (1KHz~10KHz) /low frequency (20Hz~1KHz); Double measurement button; Power indicator; Shutdown time setting Machinery grade; Store and view files. It is suitable for conventional vibration measurement of mechanical equipment, especially for rotating and reciprocating machinery. It can measure vibration displacement, rate and acceleration, and is widely used in fields like machinery manufacturing, electric metallurgy and general aerospace. Specification Measurement range: Acceleration:0.1~199.9m/s2 Velocity:0.1~199.9mm/s Displacement:0.001~1.999mm Measurement accuracy Vibration displacement:0.01~0.02mm, ≤±10%. ≥0.02mm, ≤±5% Vibration velocity:0~2.0mm/s, ≤±10%.≥2.0mm/s, ≤±5% Vibration acceleration::0~2.0m/s2, ≤±10%.≥2.0m/s2, ≤±5% Frequency range of acceleration measurement High frequency: 1KHz~15KHz (HI) Low frequency: 20Hz~1KHz ( LO) Frequency range of displacement measurement: 20Hz~1KHz (LO) LCD display: color display Shuffle interval of data display: 1 second Maximum groups of data storage: 7 groups Power supply: 1.5V AAA battery*2 Set comprise with: 1 x Vibration Meter with short probe 1 x Extra Long Probe English Instruction Manual Carrying Case