Ecoey Carbon Monoxide Detector Alarm, 7-Year Carbon Monoxide Detectors Battery Powered with LCD Digital Display, CO Detector with Silence Function and Test Button, FJ128, 1 Pack

【Unique Design】 The CO alarm is easy to install and may also be installed anywhere. Precise electrochemical sensor, high consistency and stability. The Test / Silence button help you use the alarm better.
【LCD Digital Display】The CO detector offers the digital readout of the CO concentration at the LCD screen. Detecting level range: 20-999PPM. It can display the value measured in a time frame.
【LED Indicator】 Clearly inform you of the working status of the alarm through the different colors of the LED indicator (green LED indicates normal operation, red LED indicates alarm status, and yellow LED indicates failure) to verify the safety of you and your circle of relatives.
【Energy Saving】 The CO detector is operated by 2 * 1.5V AA alkaline batteries. Alkaline batteries are safer and more environmentally friendly than lithium batteries. The battery must be replaced.
【Warranty & Service】36 months worry-free product guarantee ensures your long-term purchase. When you have any questions, please contact us by E-mail, we will be able to offers you a satisfactory solution.