Stay aware of your indoor environment with the Yieryi 3-in-1 CO Gas Detector, combining carbon monoxide detection, temperature, and humidity monitoring in one compact device. The full-color LCD shows real-time readings with visual safety alerts, while a high-decibel alarm provides an audible warning when CO levels reach dangerous levels. Its rechargeable 2000mAh battery, Type-C charging, magnetic back, and built-in 100+ lumen flashlight make it convenient for home, RV, camping, offices, hotels, and emergency use. The CO measurement range is 0–1000 ppm, with temperature and humidity monitoring for added environmental awareness.
