Tube Furnace is a split-able furnace designed to provide accurate temperature control for horizontal use up to 1450°C, with a continuous working temperature range of 400 - 1400°C and two stainless-steel vacuum sealing flanges. The precise temperature controller has a quartz tube diameter range of 140 mm and can deliver 10 segments of heating or cooling with 1°C accuracy. Temperature differences are measured using an R&B thermocouple.