Adopts piezoelectric type acceleration sensor and suitable for measurement of conventional vibration of mechanical equipment. Can measure the vibration speed, acceleration, displacement and is widely used in mechanical manufacturing, electric power, chemical engineering, spaceand aviation and other fields.Specification:Model: HT-1201Color: GreyVibration acquisition: piezoceramic accelerometer (shearing type )LCD display: three and a half digit displayMeasurement range:Acceleration: 0.1-199.9m/ ( value) Speed: 0.1-199.9mm/s (effective value) Displacement: 0.001-1.999mm (effective value) Measurement accuracy: ±(5%+2digits) Frequency range:Acceleration: 15Hz - 1KHz (LO), 1KHz - 10KHz (HI) Speed: 15Hz - 1KHz (LO) Displacement: 15Hz - 1KHz (LO) Temperature measurement 0℃ - 60℃Temperature accuracy: ±2℃Automatic power-off time: 4 minutesPower supply: 3 x AA battery (NOT included)Operation temperature: 0℃ - 45℃Operation humidity: 20% - 90%(No condensation)Storage temperature: -20℃ - 60℃Size: Approx. 150*70*32mm/5.9*2.8*1.3inchWeight: Approx. 737g / 26ozPackage List:1 x Vibration Meter1 x Probe1 x Handle1 x Plastic Box1 x User ManualNote:Don't dismantle the casing of the instrument. Don't use the device in the environment with explosive gas, steam and damp environment. When measurement is carried out near rotating part of the machine, operate carefully to avoid being pulled into the machine. Please use dry cloth to wipe the instrument case at the time of cleaning. Don't use corrosive detergents. Please take out the battery if the instrument is not in use for a long time or the storage temperature is higher than 50℃ to avoid to the instrument due to battery leakage. Please allow small size error due to manual measurement. Thanks for your understanding.