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Optical tachometer TR-550

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Optical tachometer TR-550

Accurate and versatile TR-550 tachometer with a wide measurement range. Non-contact or contact wheel measurement.

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Versatile measuring instrument with a measuring distance of 40–550 mm and a measuring range of 15–99990 RPM. The backlit LCD display makes reading the result easier and clearer in all lighting conditions. The device has a low battery indicator and automatic power-off, which extends battery life.



  • Optical tachometer TR-550

  • Measurement modes: non-contact or contact wheel

  • measuring distance: 40–550 mm

  • Measuring range 15–99,990 rpm

  • Backlit 6-digit LCD display

  • MAX/MIN, data hold and AWG (mean value) features

  • Adjustable auto power off

  • Low battery voltage indication

  • Measuring indication buzzer, on/off selectable

  • Red high-visibility light source, max. measuring distance 550 mm

  • Battery life 24 h, external 9 VDC power source connection.

Measuring rpm, rps, m/min, m/s


  • Measuring memory

  • Timed saving of 200 measurements