【Triple-Mode Visual and Audio Alarm System 】 The co monitor for travel features with both audio and visual indicators.Green light (steady): Normal operation,Yellow light (flashing): System fault detected,Red light (flashing)....
【Portable Co Detector】 The is a 4-in-1 carbon monoxide detector for travel that can detect carbon monoxide levels from 0 to 999 ppm natural gas 0 to 9999 ppm, it will alert you when the concentration reaches 99 ppm....
Box damaged but item is new and working...
【Triple-Mode Visual and Audio Alarm System 】 The co monitor for travel features with both audio and visual indicators.Green light (steady): Normal operation,Yellow light (flashing): System fault detected,Red light (flashing)....