Aiphone JOS-1F Entry Security Intercom Box Set with Vandal Resistant, Flush-Mount Door Station

7" Video Vandal Flush Set (JO-DVF, JO-1MD, PS-1820UL) FEATURES Box set includes JO-DVF, JO-1MD, and PS-1820UL Video identification and monitoring with 7″ screen Slim design Electrostatic touch buttons Hands-free communication JO-DVF is not sold separately, add JO-DV for a second door station option   SPECSCommunication: Hands-free (VOX) or push-to-talk (simplex)Video Display: 7" LCD screenCamera: Type: 1/4" CMOS                 View Area: 2'1" vertical x 3'1" horizontal at 20"Door Release: N/O dry contact, 24V AC/DC, 500mA (use RY-18L for larger contact)Wire Type: 2-cond., low cap, non-shielded - use Aiphone #871802Distance: Door Station to farthest Master Station: 165' (22AWG) 330' (18AWG)