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Digital EMF Meter Electromagnetic Radiation Tester Electric Magnetic Field Dosimeter Detector Household for PC Phone Printer

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SMART SENSOR tachometer (RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a digital displays.Applying the MCU, photoelectricity and laser semiconductor technology, perform measurement of rotating speed without contact, Wholesale DIGITAL TACHOMETER AS926

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