diff --git a/custom_components/xiaomi_miot/core/miot_spec.py b/custom_components/xiaomi_miot/core/miot_spec.py
index c2204f225..d06a0a92f 100644
--- a/custom_components/xiaomi_miot/core/miot_spec.py
+++ b/custom_components/xiaomi_miot/core/miot_spec.py
@@ -806,7 +806,7 @@ def state_class(self):
             'tds_out': SensorStateClass.MEASUREMENT,
             'filter_used_flow': SensorStateClass.TOTAL_INCREASING,
         }
-        if self.name in names:
+        if self.name in names and self.value_range:
             return names[self.name]
         return None