The Alpha Sniffer is a simple and economical way to add a separate DCC Accessory power bus to a layout. It works equally well for DCC or DC users who wish to employ Alpha, Alpha Mimic or Cobalt Digital products. Also makes the perfect “Sniffer” interface for easy connection of DCCconcepts “Alpha” products to DCC controllers that have sniffer ports. Of course, Alpha Sniffer will also work with ANY other brand of Accessory decoder that allows simple “Set-run” addressing of its outputs.