DescriptionAre you looking for a professional, yet affordable carbon monoxide alarm? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, our professional carbon monoxide alarm must meet you needs. Adopted with ABS material, not easy to break and damage, suitable for home, office, hotel use.Features-Color:White.-Material:ABS.-Size: About10.50X10.50X3.50cm/4.13X4.13X1.38inch.-Quiescent current: 105 (uA).-Working voltage: 4.5 (V).-Service life: 3 years.-Power supply: DC4.5V, 3 x AA batteries.-Will make a voice alarm when it detects a buildup of smoke or carbon monoxide, and instantly alert those in danger.-Independent carbon monoxide smoke temperature integrated alarm, can detect carbon monoxide, smoke, etc.-Features power saving design and fault self-check function, great home burning alarm.-Extremely fast alarm, simple installation, designed with creative high-decibel sound alarm.-Small and compact appearance and compact size, will not take up your home space.Packing list1 x smoke alarm