Features: Experience unparalleled safety with our Portable Gas Detectors, accurately detect a wide gases including H2S, O3, CO, PH3, CO2, H2S, NH3, O2, NO2, NO, EX, and CH4, ensuring high sensitivity and precise measurement for industrial applications. This gas Detectors features display, three alarm method (sound, light flashing, vibration), and alarm system Suitable for professional working in industry such as manufacturing, mining, and environmental monitoring, this device offer protective by alerting users to potential gas hazards. Perfect for use in confined space, factories,, the Detectors's portable for safety assurances. Ease of use and long performances, suitable for safety professional . Specifications: Component:ABS+Plastic Type:Combustible Gas/CO Size:Approx.109x60mm/4.29x2.36inch Package Includes: 1Pc Gas Detectors note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.