External magnetic RPM sensor for connection to UniTest 2.
With this sensor and the 2 supplied magnets, RPM measurements are possible independently of light sources or influences of artificial light.
The magnets are attached to the motor shaft or propeller hub. The sensor is fixed and aligned at a maximal distance of 10mm from the.
The underside with the small black sensor points to the magnet.
A built-in LED provides a visual indication when the sensor is positioned correctly near the magnets.