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Pulled from an active commercial install (Denver, CO) during an equipment upgrade, confirmed working prior to removal. Each unit is a complete DoorKing 1837-084, including the full board set: main modem/logic board (1837-010), display driver board (1892-010), 8-line LCD display module (1896-012), and microphone PCB (1998-010). Flush mount trim ring included.3 units available. Same configuration, sold individually, ships as-is from stock (specific unit shipped may vary; all are equivalent spec, cosmetically clean).Requires a 16.5VAC/40VA transformer for basic power-up; buyer handles installation/programming. Great fit for an HOA, property manager, or installer needing a drop-in replacement or spare board set.
Units listed in group photo: Far Left, Top Middle, & Top Right. Purchase is for 1 unit.
