14 volt dc drive motor operation, 115 volt 60 hz electroluminescent panel backlighted characters, display characters zero through 9, 1 blank and 1 dash, 4.000 in. Max lg, 3.060 in. W, 2.000 in. H, four 0.140 in. Mtg holes spaced on 2.380 in. By 1.380 in. Centers