Feature: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.Specification:Item Type: Gas Valve Alarm KitGas Shut Off Valve: Material: ABS, Aluminum AlloyPurpose: Widely used for automatic control of gas pipeline ball valve, gas cylinder ball valve, various connection alarms, other gas and liquid valvesNominal Pressure PN: 0.4MPaMaximum Working Pressure: 50kPaGas Leakage Detection Alarm: Material: ABSBattery: 1 x 9V 6F22 (not included)Purpose: Used in places where combustible gas (such as liquefied petroleum gas, natural gas, biogas, etc.) may leakMeasuring Range: 3000PPM (1500PPM).Package List:1 x Solenoid Valve1 x Detector2 x Expansion Screws2 x Screws2 x User Manuals