Features: Ensure safety with the digital combustible gas detector, for precise measurement of combustible gas concentrations. Featuring a digital display for clear concentration readings and a high sensitivity sensors for rapid responses, this detector offer multiple alarm model for punctually alerts. For factory workers, laboratory technicians, construction site personnel, and homeowners who require monitoring of combustible gas level. Suitable for use in petroleum refineries, coal mines, natural gas pipelines, and household kitchens to ensure safe production and living environment. Constructed from abs materials, this gas detector is a reliabled tool in the "gas detection" and "safety equipment" categories, providing peacing of mind in various setting. Specifications: Component:ABS Size:Approx.158.8x66.2mm/6.25x2.6inch Serpentine tube length: 360mm/14.17inch Style:AS8800L/AS8800C Detection gas: combustible gas Measuring ranges: 0~20%LEL/0~10000ppm Basic error: 5% LEL (methane) Low alarm value setting: 8% by defaults (base on methane) can be set. High alarm value setting: 15% by defaults (base on methane) can be set. Temperature measuring ranges:-10°C~50°C Response time: T90<10seconds Recovery time: < 30seconds Display screen: segmented LCD Sensors principle: semiconductor Alarm model: sound/light double alarm. Working temperature:-10°C~50°C Execution mark: GB15322.3-2019 Probe size: about 275mm Battery: 3x1.5VAA(Battery not included) Package Includes: 1 Set Digital Combustible Gas Detector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.