Type F47920 provides 120 cubic inches (2 liters) of heating area. For added protection, the door safety switch stops power to the heating elements when you open the door.

• Digital single set point control with a single ramp to set point and a dwell. Single display shows actual temperature or set point. Furnaces with this control also use a mechanical Over Temperature Protection relay. Thermocouple break protection cuts power to the heating elements, preventing a thermocouple failure runaway condition.
• Two open coil heating elements on the chamber’s sides assure fast heat-up with minimum temperature gradient.
• Thermal-efficient ceramic insulation surrounds the chamber for maximum energy efficiency.
• Rear of the chamber incorporates a 0.38" (0.95 cm) diameter port for monitoring chamber temperatures with independent measuring devices.
• Power cord is supplied with all models.