Marble Automation’s MS 921B propeller revolution counter accurately measures RPM for propellers and other rotating parts. Its LED display shows RPM and rotation direction, making it versatile for winches, pumps, and bow thrusters.
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Stefan Meun-Visser
+31 6 13 73 87 76
Marble Automation developed the MS921B RPM detection unit to count the number of revolutions of a propeller or other rotating parts. The LED display clearly shows the number
of revolutions per minute. The LEDs also show the direction of revolution of the propeller. The MS 921B can be applied in a wide range of situations. The rpm of a winch, (dredging) pump or bowthruster can all be measured.
