Below you will find 2 different versions of our ferrous metal detecting magnetic Speed, Direction and Quadrature Sensor. As the name implies, these sensors have 3 outputs Channel A, Channel B 90 degrees phase shifted, and a direction signal that is high or low depending on target movement direction.

The 37ADSDQ is a true 0 speed version that is sensitive to ferrous targets above and below the centerline. This version works better for targets that always have an edge in front of it, like a normal gear 4 to 32 pitch.

The 37ADSDQ is an almost 0 speed version that is sensitive to ferrous targets coming closer and farther from the sensing face. This version works better for ferrous targets that have large flat surfaces, or targets that are greater than 3/4" apart.