My parts list/tender specifications

Busch-Smoke Alarm Alarm Detector Smoke studio white

Data Sheet:

For early detection of smouldering fires and open fires with smoke build-up indoors acc. to 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. Audible alarm with 85 dBA at 3 m. Dismantling safety. Not networkable. Diameter: 120 mm. Height: 47.50 mm.