This is the HCU2 hand control unit #A-5882-0010.
HCU2 is the new hand controller for use with all variants of PH10 and PHC10. It is a direct replacement for HCU1 and provides the same functionality and compatibility.
HCU2 enables the probe head to be used in a manual mode and is invaluable for component set-up, operator-controlled inspection and teach cycle programming. It has a two-speed action, with a choice of jog or sweep moves. The LCD screen provides head angle and system status information as well as error analysis.