Advanced CO detection: The carbon monoxide detector features a highly sensitive sensor capable of detecting carbon monoxide concentrations within the range of 0-999ppm. It provides accurate and precise detection of low CO levels, offering early warning for potential threats. LCD display with real-time data: The built-in LCD display enables real-time monitoring, allowing users to easily read and interpret current CO levels in the surrounding environment. The clear and intuitive display ensures quick understanding of detected CO concentration. Immediate alarm and visual indication: If carbon monoxide levels rise, the detector activates an ble alarm to alert occupants. Simultaneously, the LCD display shows a prominent flashing warning to prompt immediate action and help prevent CO exposure. Low battery warning: The handheld carbon monoxide detector includes a low battery indicator to notify the user when battery replacement is needed. This feature helps ensure continuous and reliable operation. Compact and portable design: The compact design allows for easy placement in various locations at home or in the workplace. Its small size also supports convenient portability, making it suitable for use in hotels, dormitories, RVs, cars during travel, and other temporary accommodations. Material: Plastic Color: White Package Contents: 1 x Detector Only the items listed above are included; other products are not included. Note: Lighting reflections and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by up to +/- 1-3cm.