This set includes one JK-1MED master monitor, one PS-1820UL power supply and one JK-DA Surface mount door station.
Must be a reseller to purchase this product
Communication: AUTOMATIC (hands-free) - to activate, momentarily push TALK button MANUAL (push-to-talk/release-to-listen) - to activate, push TALK button for 1 sec. or until talk LED turns on Power Source: 18V DC - Use PS-1820UL
Wire Type: Master to door: