Briidea Black Carbon Monoxide Detector for Car, Used in Vehicles, Aircraft, Travel Bus, Trucks

Carbon Monoxide Detector for Car, Briidea Low-Level Fast 9ppm Alarm CO Detector, Widely Used in Vehicles, Aircraft, Travel Bus, Trucks, Black SAFE TRAVEL: The product is tailored for the car and aircraft environment, real-time measurement of carbon monoxide content in the air, and when the concentration reaches a certain value, respectively, a suitable alarm will be issued to avoid unnecessary distractions while driving and to achieve the effect of reminding ventilation, to protect you and your family's travel safety SMART PROGRESSIVE ALARMS: When CO concentration reaches 9ppm, the red light flashes to warn the negative to health, if there are pregnant women, the elders or children inside, better open the window for ventilation. When it reaches 25ppm, the equipment will additionally emit a loud siren, you should open the window right away. The thresholds are based on CO level exposure limit recommended by WHO, EPA, ASHRAE, OSHA, and NIOSH, and the time of trigger will vary with diffe