Circuit Board Dometic 2 Or 3 WayAt the present time the Micro P-711 can replace all of the “Black box” control boards, both 2-way and 3-way presently used in Dometic refrigerators. Works in the following models: NDR 1062, NDR 1272, NDR 1282, NDR 1492, RM2551, RM 2554, RM 2607, RM 2611, RM 2612, RM 2620, RM 2652, RM 2807, RM 2811, RM 2812, RM 2820, RM 2825, RM 3607, RM 3662, RM 3663, RM 3807, RM3862, RM 3863, RM 4872, RM4873, RM 7030, RM 7130, RM 7732, RM 7832, S 1521, S 1531, S 1621, S 1631, S 1821, S 1831. Will not fit boards that begin with #385 MFG# P711