The laser tach sensor measures from 0 - 6000 rpm. The sensing distance is from 0 - 6 feet and has adjustable sensitivity. It has a flexible magnetic mount arm you can stick and bend the arm to point at the rotating shaft. A visible laser dot will help you aim it. Place the magnetic base on a pipe, valve or flange that does not vibrate during operation so the laser aim will stay in place.
The tach sensor uses standard reflective tape to accurately measure rotations. It comes with additional tape strips that can be cut to length as needed. Existing reflective strips will work as well.
The sensor turns on automatically with the unit. The yellow indicator light on the sensor will be lit when it is on and does not detect a reflection. Point the laser dot onto the reflective tape and verify the light turns off to ensure that it will detect at your placement. Leave the laser aim at the center of the shaft for good readings.
If it is not needed, the tach sensor can be disconnected from the Pump Sender by unscrewing the sensor wire connector.