Barnstead Thermolyne BenchTop Muffle Furnaces Control Unit, for F-D1520M

Highly thermal-efficient ceramic insulation surrounding the chamber achieves maximum energy efficiency. Open coil heating elements on both sides of chamber enable rapid heating with minimal temperature gradient. To prevent heat loss, the spring-loaded ceramic fiber door automatically seals when closed. Door safety interlock switch provides increased operation safety. Built-in venting system removes undesirable contaminants and moisture. All furnace models come complete with an on/off switch, thermocouple and grounded 3-wire cord and plug. Power requirements: 120 V, 50/60 Hz.