This new old stock (NOS) SMX Q-Logic board is designed for Cruisair marine air conditioners and has been discontinued by Dometic. It is unused and never installed, backed by a 30-day warranty. Intended exclusively for self-contained DX units, it is not compatible with chillwater air handlers. The board measures 5.5" x 3-5/8" and corresponds to Dometic part number 4240800. Only one unit is available; please inquire about tested used boards or options for upgrading your board and display before purchasing, as returns are not accepted after shipment.
