Certificate
AES 125005
GSZ Gebäudeservice und Sicherheitszentrale GmbH
Paul-Robeson-Straße 37
DE 10439 Berlin
+49 30 25927400
+49 30 25927410
https://www.gsz-online.de
info@gsz-online.de
DIN EN 50518 : 2020-02
Monitoring and Alarm Receiving Centre
category I and category II
for handling alarm messages from security applications and
non-security applications
Monitoring and alarm receiving centres in accordance with DIN EN 50518
Updated at: 07.02.2026