Battery-powered carbon monoxide detector alarm (pack of 1)

Accurate, reliable, and highly sensitive alarm device with an electrochemical CO sensor; quickly detects danger and immediately alerts you to any CO concentration. Protect your family with this battery-operated carbon monoxide alarm. Battery-powered alarms provide continuous CO monitoring. (Powered by 3 x 1.5V AA batteries (not included)) Easy to use: The Test/Silence button allows you to test the alarm weekly and easily silence it in case of a false alarm. Low battery warnings also allow you to do so. Sleek design: This mini smoke detector is only 3.94 inches (100 mm) in diameter and can therefore be easily installed anywhere. Long lifespan: This carbon monoxide detector can be used for up to 10 years, so you no longer have to worry about frequent replacements.