? Product Description YL-1700M Muffle Furnaces are high temperature muffle?furnaces. The furnace consists of high quality alumina fiber insulation and 1800 grade MoSi2heating elements, and is controlled by high precision SCR (Silicon Controlled Rectifier) digital controller with accuracy +/-1 °C and 30 segments programmable up to 1700??° C/3092° ?F.?It is an ideal tool for materials annealing and sintering, Gravimetric analysis, Sintering, Quantitative analysis, Heat treating, Glass preparation and Smelting.