High-quality gas detection alarm sensor, sensitive detection of gas, natural gas, liquefied petroleum gas leakage 85db alarm volume and red light indicator warning, let you know and escape danger easily 3 Buffer alarm function to reduce false alarms 4 High-quality manufacturing materials are strong and durable durable. Easy to install and operate 5 Enhance the safety of home kitchen. Low power consumption sensor, energy saving feature: Buffer alarm function to reduce false alarm phenomenon. Made of sturdy high-quality material, it is durable. Easy to install and operate. Enhanced home kitchen safety. Low power consumption sensor, energy saving. Specification: Condition: brand new Material: plastic case Color: as picture shown Voltage: 220V Plug type: national standard plug Alarm current: 100MA Quiescent current: 20uA Detection angle: 360 degrees Detection distance: 2m Working temperature: -10-50 Alarm gas concentration: coal gas 0.1-0.5%, natural gas 0.1-0.3%, liquefied petroleum gas 0.1-0.2% Alarm volume: 85db Alarm response: 20S (according to gas concentration) Installation method: wall-mounted Scope of application: gas, natural gas, liquefied petroleum gas Size: approx. 110 * 70 * 40mm/4.33 inches * 2.75 inches * 1.57 inches Package Included: 1 x Gas alarm sensor notes: Please allow 0~1 inch error due to manual measurement. Thank you for your understanding.