diff --git a/components/daikin_rotex_uart/__init__.py b/components/daikin_rotex_uart/__init__.py
index 6232ecd..f558888 100644
--- a/components/daikin_rotex_uart/__init__.py
+++ b/components/daikin_rotex_uart/__init__.py
@@ -181,6 +181,16 @@ def get_fan_divider():
         "state_class": STATE_CLASS_MEASUREMENT,
         "icon": "mdi:pipe-valve"
     },
+    {
+        "type": "binary_sensor",
+        "name": "4_way_valve",
+        "registryID": 0x30,
+        "offset": 11,
+        "handle_lambda": """
+            return (data[0] & 0x80) > 0;
+        """,
+        "icon": "mdi:numeric-4-circle-outline"
+    },
     {
         "type": "binary_sensor",
         "name": "buh1",
diff --git a/examples/full.yaml b/examples/full.yaml
index 8de58ed..057dd88 100644
--- a/examples/full.yaml
+++ b/examples/full.yaml
@@ -133,3 +133,5 @@ daikin_rotex_uart:
       name: Heizstab Speicher
     press_eq:
       name: Druckausgleich
+    4_way_valve:
+      name: 4-Wege-Ventil