Fanuc A20B-9000-0300 AC spindle sensor. This B type spindle motor sensor is a optical pick up 12 pin feedback device sold with or without cable. Normally for speed, position for the CNC controlling early generation AC spindle motors. This number is the common reference number this sensor is known by, however its order code is A290-1003-V320. Regardless you’ll always get the complete sensor with pcb for your Fanuc spindle motor.
DNC offer used, refurb and fully tested sensors with warranty either on an exchange basis (assuming in stock) or outright. Testing, fault diagnosis, and outright sale (stock permitting) of the A20B90000300 sensor is possible.