Have tested the Main control unit with the slave and it controls a loco fitted with modules. Includes Remote that works. Micromimic display unit powers on and the 4 red leds are working, but these units usually need the battery (available on ebay) replacing. the accessories have wires of various lengths as can be seen and none have been tested. The 3 modules are new unopened. Instructions are NOT included These items are from the 80s and have been used, see photo and my description for condition. Sold as seen. Can be collected from Leeming Village DL7 Lots more Zero 1 items available.