Can the PA-KL2 folding arm work as a pair?

The PA folding arms can be used as solo or syncro pairs. Please navigate to the Downloads tab on the product page and observe the wiring detailed in the O&M page 5, section 1.2.6 and page 6 section 1.4 for manual master & slave setting.

As this manual is written and maintained by Simon Protec, the location may have changed since this answer was written.