As an Amazon Associate, we earn from qualifying purchases. Alpha Communications . RM5000EX40 Alpha Communications . RM5000EX40 Attributes Brand name, Manufacturer name, ManufacturerAlpha Communications CategoryL1Intercom Systems CategoryL2Residential Master Stations moq, multiple, tierMinQty11 MPNRM5000EX40 qtyInStock-2 qtySourceDefault field SKU388058 tierPrice19963.73 Distributor offers SellerSKUMOQIn stockMultiplePrices amerisponse.com3880581-211 @ $9963.73