Smoke detector Optical smoke detector with 10-year lithium battery

The 21AX is a CE-marked optical smoke detector that comes with a built-in 9V lithium battery with up to 10 years of life. It is designed to quickly detect smoke from smoldering fires and respond with a powerful alarm at ≥ 85 dB – for increased safety in your home.

✅ Features:

• Optical smoke sensor – Fast detection of smoke and smoldering fire

• Maintenance-free operation for up to 10 years – Thanks to the fixed lithium battery

• CE-approved and certified according to EN14604

• High alarm signal ≥ 85 dB – Clearly audible even through closed doors

• Easy installation – Mounts on the ceiling with an extra bracket