A. Features: - It has a powerful detection function. The carbon monoxide (CO) alarm can effectively monitor carbon monoxide and soot and issue an alarm in a timely manner to help ensure the safety of family members. - It comes with a high - definition LCD display. The intuitive display shows the detection results, enabling users to easily understand the indoor air quality. - It has a reliable alarm system. A loud alarm sound and bright flashing lights will alert family members when the carbon monoxide concentration exceeds the safe level. - It has a sensitivity adjustment function. The sensitivity of the carbon monoxide alarm can be adjusted according to the actual environment to help prevent false alarms. - It is easy to use. The carbon monoxide detector is compact in design, easy to install, and suitable for various application scenarios, including homes, kitchens, and gas rooms. B. Specifications: - Product type: Carbon monoxide alarm - Material: ABS - Battery type: Lithium battery, battery specification: 1.5V AA batteries x 3 (batteries not included) - Alarm sound: Greater than 85dB - Alarm concentration: - It may alarm after 60 - 90 minutes at 50PPM. - It may alarm after 10 - 40 minutes at 100PPM. - It may alarm after 3 minutes at 300PPM. - Electrochemical sensor C. Packaging list: - 1 carbon monoxide alarm - 2 screws - 2 expansion screws - 1 English instruction manual