The AC10 keypad is not detachable. It is built directly into the housing on both the IP20 and IP66 variants.
The AC10 does have an option available for a remote keypad however: Remote keypad part number: 1001-00-00 --- Extension cable 1001-01-00
[QuickLink for the AC10 on Parker.com] - Manual, QuickStarts, Product Support, etc
11SEP19 JD polish