A. Temperature and Humidity Accuracy: This carbon monoxide detector can alert you to the presence of the deadly gas with relatively high precision measurement, while also providing practical temperature and humidity detection. It has a quick charging feature that helps ensure it is usually ready to protect you and your family. B. Easy to Use: By using advanced detection technology, this Carbon Monoxide Detector can precisely detect CO levels in your vicinity. Equipped with a high - definition LED digital display, it enables real - time CO level monitoring. Long press the A key for 2 seconds to conveniently start detection and receive quick alerts in case of dangerous CO levels. C. Advanced Detection: Equipped with highly sensitive sensors, our Carbon Monoxide Detector can effectively emit a loud alarm to quickly alert you of hazardous air quality, prioritizing the safety of your family with relatively accurate monitoring. D. Portable Design: This easy - to - use carbon monoxide detector requires no professional skills to set up and operate. It's small and compact, making it easy to carry around. Equipped with temperature and humidity sensors, it can fully reflect the air environment and help ensure safety. E. Multiple Uses: Our carbon monoxide detector can ensure early detection of CO in restaurants, gyms, libraries, warehouses, shops, hotels, and schools, providing a certain level of security for you and your family. Material: ABS Colour: black Package Contents: 1 x Carbon Monoxide Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1 - 3cm.