Graigar MS120 Digital Mechanic's Stethoscope Fault Diagnosis MS-120 Sensor Signal 10~10K Hz 100dB for Ship Automobile Manufacture Machine Appliance Surface Roughness Gauges HT-225E Digital Concrete Hammer is

HT-225E Digital Concrete Hammer is a high-tech product

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Graigar MS120 Digital Mechanic's Stethoscope Fault Diagnosis MS-120 Sensor Signal 10~10K Hz 100dB for Ship Automobile Manufacture Machine Appliance Surface Roughness Gauges HT-225E Digital Concrete Hammer isBrand: Graigar Features: MS 120 Mechanic's Stethoscope 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