Features: Monitor carbon monoxide, flammable gas, temperature, and humidity simultaneously with 0.01%vol precisions in a compact gas detector featuring real time LED display for environment analysis. Engineered with industrial grade sensors and 85dB alarms, this portable gas analyzers delivers laboratory grade accuracy across 0℃-50℃ ranges while maintaining lightweight plastic construction for easy handling. Essential for homeowners, industrial safety officers, laboratory technicians, and outdoor enthusiasts requiring air quality monitoring in dynamic environments. Use in kitchens, garages, construction site, or camping trips to proactively identify gas leaks, combustion risks, and hazardous temperature/humidity fluctuations. Continuous protections powered by long lasting rechargeable batteries ensures uninterrupted operate during extended shifts or scenarios requiring persistent atmospheric surveillances. Specifications: Component: Plastic Carbon monoxide detection ranges: 0~500ppm (±10%) Temperature ranges 0°C~50C (±1.5%) 32°F~122°F (±2.7°F) Humidity ranges: 0%~95% (±5%) Battery capacity: 3000mAhh Size: about. 121x66x32mm/4.76x2.6x1.26in Package Includes: 1pc Gas Detector note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.