For the early detection of smoldering fires and open fires with smoke development indoors using the photo-optical measuring principle (Tyndall). Permanently installed lithium battery with a service life of at least 10 years. With test button and mute function. Tested according to DIN EN 14604. Acoustic alarm with 85 dBA at 3 m. Dismantling protection. Not networkable. Diameter: 120 mm. Height: 47, 50 mm. Power supply: 3 V lithium battery (permanently installed) with a service life of at least 10 years. Q-validated according to VdS 3131 / vfdb guideline 14-01.
