CF1400 series muffle furnaces feature a chamber with Mitsubishi (Japan) high quality alumina fiber insulation and silicon carbide (SiC) heating elements. A double walled steel internal housing helps minimize heat loss to exterior surface. Furnace operation is controlled by Shimaden (Japan) 40-segment digital controller with built-in RS485 digital communications port and USB adaptor, allowing the user to connect to a PC for remote control and monitoring of the furnace. You can also save or export test results.