Double walled construction inner chamber made of thick Stainless Steel 304Q plate & exterior made of G.I. sheets powder coated. Door made of thick plate & toughened glass in centre to see through the chamber. The gap between the two walls filled with glass wool insulation. Temperature Controlled by Microprocessor based Auto tune PID digital Temperature controller with PT 100 as sensor.. Supplied with Aluminium tray vacuum gauge, vacuum cock. Temp Range: 50°C to 200°C accuracy +/- 2°C.