Dependability & Precision: Equipped with a state-of-the-art electrochemical carbon monoxide sensor, it precisely measures carbon monoxide levels. In the case of a potential hazard, the detector will sound a loud 85-decibel alarm as an immediate warning.Built-In 10-Year Battery: This CO detector features a sealed lithium battery that offers 10 years of continuous power, eliminating the need for frequent battery replacements. Additionally, it can be turned off when not needed to conserve battery life.Real-Time LCD Display: The spacious LCD display provides a persistent and unmistakable view of CO levels, even when they are at zero. Its built-in backlight guarantees visibility in low-light conditions, facilitating seamless and round-the-clock monitoring.Intuitive LED Indicators: The CO alarm features 3 LED indicators that provide clear information about its working status. A green LED indicates normal operation, a red LED indicates an alarm, and a yellow LED indicates a failure.Flexible Installation: This carbon monoxide alarm features a versatile free-standing design, making it easy to place on a tabletop or mount on a wall. Its portability also allows you to take it with you while traveling (TSA-approved), ensuring your safety wherever you go.Colour:WhiteMaterial:plasticPackage Contents:1 * DetectorOnly 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.