diff --git a/source/_integrations/velux.markdown b/source/_integrations/velux.markdown
index 2102cbd66ec..af533543cbf 100644
--- a/source/_integrations/velux.markdown
+++ b/source/_integrations/velux.markdown
@@ -13,6 +13,7 @@ ha_codeowners:
   - '@pawlizio'
 ha_domain: velux
 ha_platforms:
+  - binary_sensor
   - cover
   - light
   - scene
@@ -26,10 +27,13 @@ At least firmware version > 2.0.0.0 is required on the KLF 200 device. The firmw
 
 There is currently support for the following device types within Home Assistant:
 
+- Binary sensor (reports rain detection for windows that support it)
 - Cover
 - Light
 - Scene
 
+Rain sensors of supported windows do not report automatically and must be polled every 5 minutes. For this reason, they are disabled by default, because polling uses more radio bandwidth and battery power than simply reporting changed window positions.
+
 {% include integrations/config_flow.md %}
 
 During configuration, you will be asked for a hostname and password: