1、[EXCELLENT SENSOR] Adopt semiconductor sensor, which has high stability and small sensitivity drift, and supports sensor fault detection and microprocessor intelligent control. 2、[AUTOMATIC ALARM] Adopt DC or AC 12V safety voltage, automatically close the valve, automatically close the main inlet valve when alarming, and completely cut off the power supply. 3、[INNOVATIVE CLUTCH] The innovative electric and manual changeover clutch can be used to manually open the valve in case of power failure or maintenance, which is safe and reliable. 4、[SAFE OPERATION] The gas shutoff valve will automatically close within 1 second to cut off the gas source, the valve must be opened manually with intervention to ensure safer operation. 5、[APPLICABLE RANGE] The kit is widely applicable to automatic control of gas pipeline ball valve, gas cylinder ball valve, various connecting alarms, other gas and liquid valves. 6、[EASY INSTALLATION] No need to change the original configuration of gas pipeline, the gas valve and alarm kit are convenient to install and disassemble, convenient and practical. Item Type: Gas Valve Alarm Kit Gas Shut Off Valve: Material: ABS, Aluminum Alloy Purpose: Widely used for automatic control of gas pipeline ball valve, gas cylinder ball valve, various connection alarms, other gas and liquid valves Nominal Pressure PN: 0.4MPa Maximum Working Pressure: 50kPa Gas Leakage Detection Alarm: Material: ABS Battery: 1 x 9V 6F22 (not included) Purpose: Used in places where combustible gas (such as liquefied petroleum gas, natural gas, biogas, etc.) may leak Measuring Range: 3000PPM (±1500PPM) 1 x Solenoid Valve 1 x Detector 2 x Expansion Screws 2 x Screws 2 x User Manuals