sfz12组合型温控器是组合了常开合常闭2组机械式温控器组合而成，能灵活控制加热器、过滤风扇或指示灯。可自动按照所调试的温度来切换加热或散热。

twin mechanical-type sheet metal is applied in sfz12 combinationtype temperature controller to detect temperature change.
sfz12 controller can agilely control heater and cooling fans in electric circuits.