diff --git a/source/_integrations/gios.markdown b/source/_integrations/gios.markdown
index 2049b72da210..e1e231ccfc3d 100644
--- a/source/_integrations/gios.markdown
+++ b/source/_integrations/gios.markdown
@@ -55,8 +55,6 @@ The integration provides the following sensors:
 - Sulphur dioxide
 - Sulphur dioxide index
 
-The available sensors and data refresh rate depend on the selected measurement station.
-
 ## Data updates
 
 By default, the integration {% term polling polls %} data from the API every 30 minutes.
@@ -90,6 +88,11 @@ automation:
 
 {% endraw %}
 
+## Known limitations
+
+- The availability of sensors depends on the selected measurement station. Not all stations provide data for all pollutants or indices.
+- The data provider may publish new measurements less frequently than every 30 minutes, so consecutive polls can return unchanged data.
+
 ## Troubleshooting
 
 Before reporting an issue, enable [debug logging](/docs/configuration/troubleshooting/#debug-logs-and-diagnostics) and restart the integration. As soon as the issue re-occurs, stop the debug logging again (_download of debug log file will start automatically_). Further, _if still possible_, download the {% term diagnostics %} data. If you have collected the debug log and the diagnostics data, include them in the issue report.