EC21 Selling Leads Catalogs - b/w intercom video door phone http://www.ec21.com/offers/b/w intercom video door phone.html Sell Video Door Phones B/W Wired ,SAV-N4-4Whttp://www.ec21.com/offer_detail/Sell_Video_Door_Phones_B--8581356.htmlVideo Door Phones B/W Wired ,SAV-N4-4W Function: >> Visitor calling, freehand, video intercom, unlock, monitor >> With 20091217 Sell 4 Inch Wired Intercom Door Phonehttp://www.ec21.com/offer_detail/Sell_4_Inch_Wired_Intercom--2282159.htmldoor phones Resolution: 480 (W) x 234 (H) Screen size: 84 (W) x 64mm (H) Video signal: 75V 1Vp-p (CCIR/NTSC) Rating vol20090916 Sell Selling Video Door Phonehttp://www.ec21.com/offer_detail/Sell_Selling_Video_Door_Phone--7988279.htmlIntercom talk: handset Outdoor camera: Case: plastic Camera: 1/3-inch CMOS B/W (1/3-inch color CMOS), optional CCD Infr20090513