The Opto MRPM EX sensor is used to optically measure the speed (RPM) of propeller
driven models. The optic sensor calculates RPM by monitoring the interruption of light
(sunlight or incandescent light). The optical sensor is housed inside a metal tube to
help reduce unwanted reflections for better accuracy. Using the JetiBox, the Opto MRPM
EX allows you to set your propeller blade count, multiple alarms and can even display
the motor power in Watts.
Through the Duplex 2.4GHz system and either a JetiBox Profi or Jeti Transmitter you can monitor your
data and alarm conditions in real time.
19mm x 14mm x 4mm
6g (with wires)
10U per minute
-10C to +85C
3.5V to 8.4V
More information (links):
* Instruction Manual (pdf.)