10-year Replaceable Battery CO Alarm

Standalone Carbon Monoxide Alarm is designed to continuously
monitor Carbon Monoxide concentration. Adopting advanced electrical
technology, a built-in high-volume buzzer, it responds quickly and
becomes highly sensitive with stable performance and low false alarm.
Once the surrounding Carbon Monoxide concentration reaches the
alarm value, it will promptly send out an audible and visual alarm signal
to remind the user to take immediate measures.