The Honeywell SNDH-H Series Hall-Effect Speed Sensors use a magnetically biased Hall-effect integrated circuit to accurately sense movement of ferrous metal targets.
The Optimum performance is dependent upon variables which must be considered in combination: target material, geometry and speed, sensor/target gap, and environmental temperature.
All models are highly reliable and provide completely quality.
Please ensure the sensor is mounted so that the center of the sensor face is over the center of the gear teeth or target. Ensure the mounted sensor is stable and vibration free.