New Mechanic's Stethoscope MS-120 Pick up and Amplify the Weak Audio Signals via Sensitive Piezoelectric Sensor
Features
* It can pick up and amplify the weak audio signals via a sensitive piezoelectric sensor, and distinguish the normal/abnormal signal and its location.
* Desined to help locate the source of excess bearing and machine noise easily at low cost.
* Used to quickly locate the source of engine noise such as piston slap, worn gears and bearings, blown gaskets. Also useful tracking down dashboard rattles and squeaks.
Specifications
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Frequency Range
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10~10K Hz
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Input Impedance
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>20M
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Ambient Noise Permitted
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100dB
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Power Supply
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4x1.5V AAA Size(UM-4)Battery
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Dimensions
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156x67x28 mm
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Weight
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270g(Not Including Batteries)
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Standard Accessories
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Main Unit
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Powerful Rare Earth Magnet
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Sensor
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Probe(Cone)
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Carrying Case
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Manual Book
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Optional Accessories
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Headset
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Vbration Standard
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ISO/IS2373 Motor Quality Standard According As Vibration Velocity
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Quality Rank
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Rev ( rpm )
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H: high of shaft ( mm )
Maximum vibration rms ( mm/s )
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80<H<132
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132<H<225
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225<H<400
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Normal
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600~3600
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1.8
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2.8
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4.5
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Good ( R )
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600~1800
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0.71
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1.12
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1.8
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1800~3600
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1.12
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1.8
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2.8
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Excellent ( S )
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600~1800
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0.45
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0.71
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1.12
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1800~3600
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0.71
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1.12
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1.8
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