X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R

Flexible Installation: Wall-mounted or free-standing; easy to take while traveling, High Accuracy & Reliability: Advanced Figaro electrochemical CO sensor; 5-year replaceable battery, Instant Alert: An early warning will be delivered through a loud 85-decibel alarm, Informative LCD: Displays real-time CO levels and remembers dangerous CO levels since the last preset, Intuitive LED: 3-colored LED indicator flashes red, green, or yellow to indicate an alarm, power, or a fault