DIGITAL TEMPERATURE AND TIMER CONTROL. CONTROLLABLE TEMPERATURE FROM 35 °C TO 200 °C. STABILITY ±1 °C, UP TO 100 °C. HOMOGENEITY ±2 °C, UP TO 100 °C. SET ERROR ±1 °C. RESOLUTION 1 °C. FEATURE: Digital electronic control of temperature and pre-selected programmable ti- mer. Running time range: from 1 minute to 9hrs 59 min. or 99.9 hrs. Pre-program start time, (wait time range): 1 hr to 24 hrs Temperature sensor Pt100 Heating element placed evenly around the chamber. Chamber made from AISI 304 stainless steel. Trays made from anodised aluminium. Door with hardened glass window, which sits on to a silicon gasket that absorbs any contractions and expansions that may occur. Vacuum port with bleed valve Air valve at the front Vacuum pump connection at the back. Epoxy covered outer case. RS-232 Interface output of parameters for a computer, printer or USB adapter.