X-Sense Carbon Monoxide Detector, Built-in 10-Year Battery Powered, Portable Carbon Monoxide Detector for Home, Model XC0K-SN, 1-Pack

Compact Design, Flexible Placement: With sleek, modern lines, this lightweight device (3.7 × 3.7 × 1.2 in / 9.5 × 9.5 × 3.1 cm) requires no installation—just place it on a desk or countertop; perfect for home use
10-Year Power for Continuous Protection: The built-in high-performance lithium battery keeps the device running for its entire lifespan—no replacements or calibration needed; install once and enjoy a decade of continuous protection for your family
Clear, Informative LCD: Allows you to know the real-time CO levels and battery status at a glance; only lights up during button operation or when an event is triggered, never disturbing sleep
Tri-Color LED Indicator: Green indicates normal operation; yellow warns of a fault; red shows an alarm, prompting you to call the fire department to inspect for possible leaks
Exclusive Peak Button: With one press, the LCD shows the highest CO level detected since the last reset; even if you’ve been away, you can instantly check for potential risks—ideal for people who are often away from home