Steel case with hammertone finish, 7.500 in. L, 3.375 in. H, 5.812 in. D, 0.406 in.Dia mtg holes on 3.625 in. By 9.531 in. Mtg ctrs, 4 threaded stud terminals, 120 volts, 55 to 65 cycles, minus 1.5 to plus1.5 volts output at transducer terminals, 3000 ohms external load
