Exclusive Auxiliary Switch Design for 24V Zone Valve Actuators Utilizing reed switching technology, Caleffi has released an innovative sealed auxiliary switch design for its Z-one Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window) Product News 2009-10-26 The Staff