Double walled construction. Inner chamber made of Stainless Steel.Outer body made of mild steel is powder coated/painted. Temperature is controlled by Microprocessor based PID Controller from Ambient +5C to 90C. Provided with air circulating fan. The gap between the inner & outer chamber is filled with high grade glass wool to avoid the thermal losses. Perforated adjustable trays. Two pilot lamp on/off switch. To work on 220/230 V.AC.