Features: - Suitable for detecting LPG, natural gas, and coal gas in home kitchens, hotels, or restaurants - Designed with MCU intelligent supervision control and SMT chip technology - LED numeric display shows real-time gas leak concentration with visual and audible alarm - Equipped with high-quality semiconductor heated-type sensor for reliable performance - Provides intelligent protection for family safety - Features three indicators: POWER, STATE, and ALARM Specifications: - Detecting gases: LPG, LNG, coal gas, natural gas - Working voltage: AC 100V–240V - Working frequency: 50/60 Hz - Rated power: < 2W - Alarm concentration: - LPG: 0.1–0.5% - LNG: 0.1–0.3% - Coal gas/Natural gas: 0.1–0.5% - Alarm sound level: 85 dB at 3 meters - Operating environment: Temperature -10°C to 50°C, Humidity <97% RH - Storage temperature: -25°C to 55°C - Device size: 120 x 69 mm - Package weight: 130g Package Included: 1 x Gas Leakage Detector