... Metal:Gold,Siver,Zinc,Copper,Brass,AluminumRegulation:Digital PID Temperature ControllerHeating:SIC Chamber with no crack,no distortionFurnace ... a controller that is operational whether the furnace is on or off. Once you've reached your casting temperature, ... All products electrical parts have 1 year warranty,including temperature controller,relay, thermocouple,heating elements have 6 months warranty, ...