The 3100U 02540004 is a compact, 2-wire, fast-acting electronic gas valve, designed to provide automatic gas shut-off in the case of an unsafe condition in a room or other enclosed area. It utilizes a Honeywell or selected licensed parts to provide reliable performance and protection. The 3100U 02540004 features a tight shut-off and the highest tightness design available, with a maximum shut-off differential of just 7.5 inches W.C. (3.5 mbar). It is capable of controlling natural, propane and butane gas, and can be used in medium and high pressure applications. It has an overload trip protection that ensures the shut-off system cannot be overcharged, and a visual indication for indicating disassembly and fault status, making it an ideal choice for commercial food service, industrial and residential applications.