Combined quadrature rotational speed and direction sensor
HD Sensoronix

Non-contact magnetic sensors that measure the distortion of magnetic fields and thus provide precise measurements of speed and direction. Output #1 is digital square wave and measures the speed of target wheel or gear.
Output #2 is a DC level that when the target wheel rotates clockwise, the output signal # 2 produces logic High, and when the target wheel rotates counter clockwise, the output signal # 2 produces logic low.
Output signal #1 will be 50% duty cycle with proper alignment of sensor and target gear.