Marantec 89493 RPM Sensor
RMP sensor with wire harness and plugs.
Works on M4500E, M4500EL, M4700E & M4700EL model Marantec garage door openers.
Very easy to install, unplug old, install and plug in new.
This Marantec 89493 RPM Sensor measures the motors revolutions per minute, the motor speed. If the motors revolutions per minute drop below a predetermined amount, the motor will reverse. This is vital when the door contacts an obstruction.
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We also carry controls and other parts for Marantec Garage Door Openers as well as many other brands and types of garage doors and garage door openers.