Features: 1. The detector can be used to simultaneously detect and display carbon monoxide concentration, temperature and humidity. The unit is lightweight and portable, making it easy to use and carry. 2. It adopts high-precision electrochemical sensor with high sensitivity, strong anti-interference ability, stable working performance and low power consumption. 3. The hazardous level function uses different colors to display the different quality of the monitored air, allowing you to more accurately and intuitively understand the current air conditions. 4. Automatic brightness adjustment, according to the surrounding brightness, automatically adjust the screen display brightness, so that the screen is visible and not blinding. 5. Real-time detection, data updated automatically. Multi-purpose design, suitable for agricultural planting, greenhouse vegetables, production warehouses, material processing, home interiors, business offices, etc. Specification: Material: ABS Power supply: USB charging Battery capacity: 1200mAh Product size: 70*84*35mm Package size: 138*107*42mm Weight: 185g Package Includes: 1* Detector 1* USB cable 1* Manual