RPM Meter: Tachometer App

Contactless tachometer. Check fan, blower & motor RPM by sound. No extra tools.

Turn your phone into a contactless tachometer. RPM Meter listens to a spinning part with your microphone, reads the frequency, and shows the rotation speed in RPM — no contact strip, no reflective tape, no extra hardware.WHO IT'S FOR• HVAC techs — check blower wheel and condenser fan speed on a service call• Auto and small-engine work — belt-driven accessories, cooling fans, shop tools• Woodworkers and machinist…