Features: The GD 02 Combustible Gas detectors delivers triple alert defense with 0 50,000ppm detection ranges, featuring sound, flashing lights, and shaking alarms alongside real time temperature/humidity monitoring for comprehensive environmental safety. Equipped with a high accuracy sensors and rapid response systems, this portable gas detection device boasts ABS metal construction, quick 3 second readings, and 12 hour battery life for stable leak detection in diverse conditions. Ideal for homeowners, industrial maintenance crews, and safety inspectors requiring professional gas leak detection during facility checks, equipment repairs, or routine household safety audits. Perfect for monitoring kitchen gas lines, factory pipelines, workshop machinery, or laboratory environments where methane, gas , or isobutane leaks could pose critical safety hazards. This multi functional gas leak detectors combines professional accuracy with user friendly operate , featuring natural interfaces and magnetic storage design for convenient access during critical safety inspections. Specifications: Component : ABS, metal, PCB Size: about 139x63x28mm/5x2.5x1inch Detection gas ranges: 0~50000ppm, 0~100 (A%LEL) Resolution: 1ppm/1%LEL Package Includes: 1 set Gas Leak detectors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.