Key benefits — why you need this detector Fast, clear alerts: Twocolor backlight plus audible alarm make it immediately obvious when a flammable gas leak is present. Green backlight indicates no leakage; red backlight and a buzzing alarm indicate detected leakage. Actionable information: The concentration analog bar rises as gas levels increase, letting you assess severity at a glance and respond appropriately. Reliable measurements: A , sensitivity semiconductor sensor provides accurate, repeatable results so you can trust readings when safety is at stake. Versatile use: Designed to detect a variety of flammable gas types to meet different testing needs across homes, commercial, and industrial settings. Key features and performance Twocolor backlight indication: Green = no leakage; Red = leakage detected. Visual status is immediate and easy to interpret in lowlight environments. Sound and light dual prompts: Simultaneous audible buzzer and visual alarm to ensure alerts are noticed even in noisy or busy areas. Concentration analog bar: Realtime, intuitive display of gas concentration levels that increases with detected flammable gas, helping prioritize response. Sensor technology: , sensitive semiconductor sensor for higher precision and consistent performance in detecting flammable gases. Multipurpose detection: Suitable for detecting and testing various types of flammable gases to accommodate different inspection and safety requirements. Practical applications (use scenarios) Home safety checks: Quickly inspect kitchen appliances, gas stoves, water heaters, and supply lines for leaks after installation or maintenance. Building and facility maintenance: Use during routine inspections of gas lines, meters, and valves in apartments, offices, and retail spaces to identify and address leaks early. Industrial and HVAC inspection: Monitor pipelines, fittings, and equipment in workshops, mechanical rooms, and HVAC systems where flammable gases may be present. What this product solves Reduces risk of undetected flammable gas leaks by offering immediate visual and audible warnings. Helps prioritize responses with a concentration bar that shows increasing gas levels rather than only a binary alarm. Improves confidence in test results through a precision semiconductor sensor, lowering the chance of false readings. User guidance Use the visual backlight and audible alarm together to confirm the presence of a leak. Monitor the concentration analog bar to gauge the severity and trend of detected gas levels. Employ the detector across different locations and gas types for routine safety inspections and post verifications. Specifications and functions (as provided) Twocolor backlight prompt: green for no leakage, red for leakage. Sound and light dual prompts: buzzing alarm plus rising concentration analog bar when flammable leakage is detected. Sensor: , sensitive semiconductor sensor for higher accuracy. Multiuse capability: convenient for detecting and testing a variety of flammable gas types to meet different testing requirements.