A. Temperature and Humidity Accuracy: This carbon monoxide detector can alert users to the presence of the deadly gas with relatively precise measurement while also providing practical temperature and humidity detection. It has a quick charging feature that helps ensure it is usually ready to protect users and their families. B. Easy to Use: By using advanced detection technology, this Carbon Monoxide Detector can precisely detect CO levels in the vicinity. Equipped with a high - definition LED digital display, it enables real - time CO level monitoring. Long - pressing the A key for 2 seconds can conveniently start detection, and users can receive quick alerts in case of dangerous CO levels. C. Advanced Detection: Equipped with highly sensitive sensors, this Carbon Monoxide Detector can effectively emit a loud alarm to quickly alert users of hazardous air quality, prioritizing the safety of users' families with accurate monitoring. D. Portable Design: This easy - to - use carbon monoxide detector doesn't require professional skills to set up and operate. It's small and compact, making it relatively easy to carry around. Equipped with temperature and humidity sensors, it can fully reflect the air environment and help ensure safety. E. Multiple Uses: This 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 users and their families. Material: ABS Colour: black Package Contents: 1 x Carbon Monoxide Detector Only the above package content is included, other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to be a bit different from the real thing. The measurement allowed error is +/- 1 - 3cm.