250mm dia with bottom Instatherm® heated,(low voltage: 40 volts, 10 amps max.) Top is not heated, but has insulation cover. May be used as a vacuum oven at temps up to 180 degrees C continuously. The top has an observation stripe for visibility & is supplied with vacuum take-off valve. Uncoated top available. All codes include a 9698-20 connecting controller cord. Code -10 is complete with a 8294-15 thermometer and 5272-17 10/30 glass adapter.