KRISTALLO series video intercom for VX2300 full-duplex speakerphone system, 3.5” LCD TFT monitor, 8 soft touch buttons for functions: conversation, call rejection, auto-power on, door opener, intercom call (4), camera switching, privacy service, remote relay activation Cod. 2305. Local call input. Adjust contrast, brightness, call volume and privacy. Standard intercom function for up to 4 devices in the same column or junction box. Device configuration via dip-switch. Polished effect black polycarbonate material. Power supply from BUS or optional 12Vdc with Cod. 323/12. Surface mounting dimensions: 120x190x29mm. Flush installation through boxes Cod. KRV981 or KRV983. Flush mounting dimensions: 120x190x8mm.