Double walled, 3 side heating elements foruniform temperature throughout the chamber. Temp. Range 5º C above ambient to 90º C. Control Accuracy ± 0.5º CInner Chamber : Anodized Aluminum/Polished Stainless steel.Temp. Control : Thermostatic/Digital Control. Forced air circulation is also available.Available Inner sizes of 30x30x30 cm, 35x35x35 cm, 45x45x45 cm, 60x60x60 cm, 45x45x60 cm, 60x90x45 cm, 60x90x60 cm.It can be supplied in custom-built sizes, specification & with PID Controller or Profile Programmer.