Temperature range from 100-1200°C. Open coil heating elements on both sides of chamber assure fast heat-up, with minimum temperature gradient. Chamber surrounded with thermal-efficient ceramic insulation. Built-in venting system removes undesirable contaminants and moisture; extends lifespan of element and unit. Rear chamber predrilled with 3/8" diameter port for injecting special atmospheres or monitoring temperature. For safety, an open circuit will trigger the sensor break protection and remove power to heating elements eliminating runaway conditions.  Four temperature controller models available: Control A: basic automatic digital control holds accurately at one temperature. Single digital display indicates chamber temperature Control B: Single set point automatic control allows simultaneous monitoring of the set point and actual chamber temperatures. Control D: An 8-ramp and 8-dwell programmable control that includes an RS232 port for connecting to printer or computers. Stores up to four programs All units include a thermocouple, grounded 3-wire cord and plug. Applications include organic/inorganic ashing, gravimetric analysis, sintering and quantitative analysis