Smoke Detector Carbon Monoxide Alarm Combo, XP0H-SN, 1-Pack | 10-Year Sealed Battery (Not Hardwired), Large 5.7-inch Bracket Covers a Clean Wall, UL 217 & UL 2034 Certified

Please Note: The XP0H-SN is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station. For an interconnected version, search for XP0H-WN. 2-in-1 Protection, One
Simple Solution: This combination alarm features built-in sensors for both smoke and carbon monoxide, delivering reliable 24/7 protection in one compact device. It is tested and certified to meet UL 217 and UL 2034 safety standards.
Long-Lasting Sealed Battery: The battery and dependable performance provide peace of mind without the hassle of frequent battery changes. Large Mounting Bracket for a
Clean Finish: The extra-large 5.7 -inch (145 mm) bracket covers more area than standard small ones, easily hiding old screw holes and ceiling stains from previous alarms. Installation looks tidy with no need for patching.
(Note: Please check that your existing device fits within this size before installation. )
Built-in Self-Test: Automatically checks the sensors, electronics, and battery every 60 seconds to ensure the device is working properly.
Easy-to-Read LCD: See real-time CO levels and battery status at a glance. The LCD screen stays off during standby and only lights up when theres an alarm or test, keeping you informed without disturbance