PDK-R4 Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: PDK-R4 MANUFACTURER: Prodatakey Product Details Four Door Controller, Ethernet, OSDP, Wiegand, Battery Monitoring, Optional wireless and PoE++ Product Details Back Product DetailsFour Door Controller, Ethernet, OSDP, Wiegand, Battery Monitoring, Optional wireless and PoE++