LSENLTY Carbon Monoxide Detector-CDR-817

【Portable Carbon Monoxide Detector】Compact size: 8.1×5×2.7 cm, weight: 80g. Includes mesh bag (check bottom of box – remove inner plastic layer), adhesive pad, and fixing screws. Place on table, mount on wall, or pack in suitcase/backpack. Ideal for camping, travel, car, and outdoor use. (Batteries not included – requires 2× AAA) 【3‑Year Standby Time】With fresh batteries, standby time up to 3 years. When battery is low, screen shows "Lb", alarm beeps every 20 seconds, and red light flashes. After 15 repeated alerts, the detector automatically shuts down. 【Indicator Light Meanings】Green flashing – Normal monitoring: actively detecting CO, updating every 3 seconds;Red flashing – Low battery or malfunction. If a fault occurs, screen shows "Err" and a beep sounds – indicates device failure or sensor end‑of‑life. 【Memory Function】Continuously monitors and stores peak CO concentration. Press the button – the highest CO level recorded during the current period is displayed with a beep.