10-year smoke alarm, type B, based on the scattered light principle, with wM-Bus remote inspection module and built-in lithium battery (3V), stand-alone device, with large test/mute button, increasing test volume, without LED flashing, suitable for bedrooms, automatic contamination compensation, dismantling protection, VdS-tested in accordance with DIN EN 14604, quality seal Q in accordance with VdS 3131/vfdb 14-01, 5-year guarantee, 10-year service life
