Double Walled Construction. Inner Round Chamber Made Out Of Stainless Steel, Exterior Made Out Of Mild Steel Duly Finished In White Stoving Enamel/Powder Coated Paint With Mat Finished Color Combinations. Temperature Range 50Degc To 30Degc +/- 3Degc. The Body Capable Of With Standing Vacuum Of 760 Mm. Workable On 220V Ac 50 Hz Single Phase. Supplied Without Vacuum Pump. Optional : I) Timer 0-24 Hours. Ii) Imported Thermostat Ego/Jumo German, Accuracy Of +/-0.1Degc. Iii) Digital Temp. Indicator-Cum-Controller. Iv) Microprocessor Pid Digital Temp. Indicator-Cum-Controller.