Heating blankets are designed to be used with a temperature controller and rtd temperature sensor for heating media inside a vessel to temperature. Male iec connector for use with temperature controllers Heating at 5 watts/sq.in. Flask size: 500ml Watts: 50 Dimension (in.): 1 x 10.5 1 latch 6f cord (18-2) with c-14 plug Caution: vessel must be stirred when heating blanket is in operation