Kit 3 Intercoms + Door Station Intercom Bidirectional communication and intercommunication with 2 additional intercoms. Power supply 12VDC @ 1A. Connection: 4 wires (positive, negative, audio and data). Door Station Vandal-resistant IP44 weather resistant Indicator light Ability to connect 1 electric lock 2VDC @ 1A power supply SKU Description 007121 Kit 3 Intercoms + Door Station 0010974 Intercom Download the Technical Sheet Intercom y Portero.pdf (..pdf, 548 kB) Related Products: Kit 1 Intercom + Door Station Kit 2 Intercoms + Door Station Kit Intercom + EM Rim Lock