meross Interconnected Smoke and Carbon Monoxide Detector Combo, 2 in 1 Fire & CO Alarm with Replaceable Battery, One-Touch Test/Hush Button, LCD Display, 10-Year Lifespan - MA301

• Coverage Full Home Safety： Notice: The Non-Smart Smoke alarm can’t connect to the smart home or meross app. meross Interconnected detector can connect up to 12 smoke alarms by using RF technology for complete coverage and improved family protection. Ensures full coverage, even through walls, with no blind spots. Perfect for providing comprehensive safety and peace of mind Newest UL217 8th Std in Market： Compared to other UL217 previous edition certified products, meross combo smoke and CO alarm meets the latest UL217 8th Std. It utilizes the latest photoelectric technology sensor, ensuring more accurate and reliable detection of smoke and fire events than others. Free from annoying false alarms caused by cooking or steam from showers Solid and Lasting Protection：Equipped with 3 AA replaceable batteries, meross smoke and CO detector ensures uninterrupted safeguarding, even during power outages. With a remarkable 10-year lifespan, this detector offers both economic and practical benefits User-Friendly LCD Screen：Real-time CO levels (30-999 PPM), battery status, and operational updates are displayed on this smoke and CO alarm. Stay informed and take control with our user-friendly interface. A low battery alert ensures timely battery replacement Effortless Installation： Our detector can be effortlessly mounted on the wall or ceiling using the included bracket, without the need for re-drilling or rewiring. It conveniently fits most screw hole spacing (1.2 inch-3.6 inch). Silencing the alarm is as simple as pressing a button. Half the depth of a standard alarm Enhanced Safety with Multiple Alert Modes：meross combination detector includes an 85 dB buzzer, LCD display, and LED indicators. The loud siren ensures even the heaviest sleeper is awakened, while the flashing red light and clear icons on the LCD screen provide visual cues for prompt action