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4-Wire HD Video Intercom Kit
4-Wire HD Kit, including DS-KB2412T-IM and DS-KH2230T Include one monitor, one door station, 5-meter 4-wire cable, and other accessories
4-Wire HD Kit, including DS-KB2412T-IM and DS-KH2230T Include one monitor, one door station, 5-meter 4-wire cable, and other accessories