Check the listing for details. Viking Electronics E-20b Intercom Sub Station. Condition: Used. Listed at 149.99 USD. Hello there, Introducing the Viking Electronics E-20b Intercom Sub Station, designed for seamless communication in various settings. This device offers users an efficient intercom system that is easy to use and maintain. With its high-quality features, it is perfect for business and industrial settings, as well as facilities that prioritize safety and security. This intercom sub station is made by the trusted brand Viking, ensuring its reliability and durability. It is compatible with various access control equipment and can be used for facility maintenance purposes. Get your hands on the Viking Electronics E-20b Intercom Sub Station now and enjoy its seamless communication features. So, we got 4 units here (2) E-20B-EWP(1) E-20B(1) W-2000A-EWP