Gas Saver Digital DK-747 ÍØ»¡Ã³ì»ÃÐËÂÑ´á¡çÊ ÊÒÁÒöÇÑ´ÍѵÃÒ¡ÒÃäËÅ (Flow Rate) áÊ´§¤èÒº¹Ë¹éÒ¨Í LED â´ÂÊÒÁÒöµÑé§Ë¹èÇ PSI,Pond,ÚBar, A gas saver with a built-in mass gas flow meter. The flow rate of the flame you are using can be confirmed by numbers, so anyone can easily reproduce the same flame. As with the SE-ll Saver, the spark igniter system has been adopted from the conventional ignition method using a seed flame. Both the gas and oxygen are automatically shut off after a predetermined timer