Features: The Gas Concentration sensory utilizes advanced semiconductor detection technology for measurement of hydrogen sulfide levels, addressing the limitations of slow response traditional sensors in industrial and laboratory applications. Featuring housing of high strength plastic and metal, this ensuring reliability in harsh environments while supporting easy installation for flexible deployment. Designed for professional requiring data accuracy, this sensory is ideal for engineers, researcher, and safety officers managing air quality in oil refineries, wastewater plant, or mobile research labs. Optimize workplace safety with easy installation in dynamic settings like construction sites, chemical storage facilities, or temporary monitoring stations where rapid equipment reconfiguration is essential. Its integrated auto calibration minimizes measurement drift, delivering consistent for critical tasks such as leak detection, emission control, and occupational health compliance across industrial sectors. Specifications: Component:Metal+Plastic Size:Approx.20.2mm/0.79inch Package Includes: 1Pc Hydrogen Sulfide sensory 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.