This accessory kit is designed for all Corning digital display hot plates and stirring hot plates (Models PC-400D, PC-420D, PC-600D, PC-620D). It is voltage independent and includes a temperature controller (6795PR) that controls the temperature of liquids up to 200ºC, a two piece, 5/16 (45.7cm) long support rod (440129) and magnetic stir bar retriever (6970SR)