Carbon monoxide alarm with display and 10 years battery and sensor runtime, white

The Alecto COA4010 carbon monoxide alarm offers reliable, long-term protection against carbon monoxide (CO) in your home. As soon as carbon monoxide is detected, the alarm warns immediately with sound, light, and a clear display notification. Equipped with a 10-year sensor and a powerful built-in lithium battery, this CO alarm guarantees continuous, maintenance-free safety for an entire decade.

Thanks to its integrated display, you can easily read CO concentration levels, battery status, and other important notifications at a glance. Unlike many alarms with displays, the Alecto COA4010’s lithium battery ensures 10 years of optimal operation without replacements.

The alarm not only warns of high CO concentrations (>50 ppm) but also alerts you when low levels (<20 ppm) are present, helping you act before health risks arise. When the concentration becomes dangerous, a loud 85 dB alarm ensures you are warned instantly — even while asleep.

Installation is simple with the included mounting plate, screws, and plugs, but the COA4010 can also be placed freestanding on a flat surface. Compact and portable (40 × Ø110 mm), it’s also ideal to take with you on holiday.