diff --git a/custom_components/xiaomi_miot/core/miot_spec.py b/custom_components/xiaomi_miot/core/miot_spec.py
index 422b53e65..b9e146710 100644
--- a/custom_components/xiaomi_miot/core/miot_spec.py
+++ b/custom_components/xiaomi_miot/core/miot_spec.py
@@ -862,6 +862,10 @@ def range_valid(self, val):
             return True
         if val == None:
             return False
+        try:
+            val = float(val)
+        except (TypeError, ValueError):
+            return False
         return range_min <= val <= range_max
 
     @property
diff --git a/custom_components/xiaomi_miot/sensor.py b/custom_components/xiaomi_miot/sensor.py
index f3c2b5998..e2d45adb8 100644
--- a/custom_components/xiaomi_miot/sensor.py
+++ b/custom_components/xiaomi_miot/sensor.py
@@ -134,7 +134,7 @@ def set_state(self, data: dict):
         value = data.get(self.attr)
         prop = self._miot_property
         if prop and prop.value_range:
-            if not prop.range_min() <= value <= prop.range_max():
+            if not prop.range_valid(value):
                 value = None
         if value is not None:
             try: