top of page

The Hand Held Tachometers

(Ono Sokki HT-4200)

The HT-4200 is a compact, non-contact type handheld digital tachometer. Affix one of the reflective marks to the rotating surface of the target measurement object, and then aim the red visible ray at the mark. If multiple marks are affixed to the target of measurement object, measurement can be performed at a lower speed.


  • A larger easy to read display is incorporated into this compact, lightweight unit which can be easily slipped into your shirt pocket.

  • Built-in memory makes confirmation of up to 10 measured results easy.

  • Even shiny surfaces can be measured by using the reflective marks provided.

  • Wide measurement range from 30 to 50,000 r/min.

  • Measurement can be performed safely at a distance ranging from 20 to 300 mm.

  • The last measurement is held for 30 seconds even after the power has been switched off.

  • Battery replacement time indicator is provided.

bottom of page