The device is small and falls at the outlet on barely. When the alarm is pulsed rather high tone which sufficiently loud and flashy for a medium-sized single-family house is. For larger properties can be, according to Gigaset several sirens sign the then "strike" in parallel.
The alarm automatically ends after 90 seconds until next sensor event. Manual can be a bit cumbersome alarm either end via mobile app - alternatively, by the removal of the siren from the wall outlet. The site should therefore be carefully considered.
As a suggestion to Gigaset thus remains only a faster shutdown via app already on the Dashboard for me. Generally, there should be a possibility already here, quickly switch to a sharp monitoring mode. A termination of the same could be simultaneously elegant and a (false -) - Alarm schedule.
Addendum: "Siren" works well - but the overall system is too unreliable - unfortunately now all return.
Dirk