diff --git a/homeassistant/components/aranet/sensor.py b/homeassistant/components/aranet/sensor.py
index 88fc1aedeff..3309e735d53 100644
--- a/homeassistant/components/aranet/sensor.py
+++ b/homeassistant/components/aranet/sensor.py
@@ -75,9 +75,9 @@ SENSOR_DESCRIPTIONS = {
         state_class=SensorStateClass.MEASUREMENT,
     ),
     "status": AranetSensorEntityDescription(
-        key="concentration_level",
-        translation_key="concentration_level",
-        name="Concentration Level",
+        key="threshold_indication",
+        translation_key="threshold_indication",
+        name="Threshold Indication",
         device_class=SensorDeviceClass.ENUM,
         options=[status.name.lower() for status in Color],
     ),
diff --git a/homeassistant/components/aranet/strings.json b/homeassistant/components/aranet/strings.json
index 4f1f7e21b82..cc287cc003d 100644
--- a/homeassistant/components/aranet/strings.json
+++ b/homeassistant/components/aranet/strings.json
@@ -24,7 +24,7 @@
   },
   "entity": {
     "sensor": {
-      "concentration_level": {
+      "threshold_indication": {
         "state": {
           "error": "Error",
           "green": "Normal",
diff --git a/tests/components/aranet/test_sensor.py b/tests/components/aranet/test_sensor.py
index 8de97d7b934..682bdb45f8b 100644
--- a/tests/components/aranet/test_sensor.py
+++ b/tests/components/aranet/test_sensor.py
@@ -214,11 +214,11 @@ async def test_sensors_aranet4(
     assert interval_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "s"
     assert interval_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
 
-    status_sensor = hass.states.get("sensor.aranet4_12345_concentration_level")
+    status_sensor = hass.states.get("sensor.aranet4_12345_threshold_indication")
     status_sensor_attrs = status_sensor.attributes
     assert status_sensor.state == "green"
     assert (
-        status_sensor_attrs[ATTR_FRIENDLY_NAME] == "Aranet4 12345 Concentration Level"
+        status_sensor_attrs[ATTR_FRIENDLY_NAME] == "Aranet4 12345 Threshold Indication"
     )
     assert status_sensor_attrs[ATTR_OPTIONS] == ["error", "green", "yellow", "red"]
 
@@ -299,11 +299,12 @@ async def test_sensors_aranetrn(
     assert interval_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "s"
     assert interval_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
 
-    status_sensor = hass.states.get("sensor.aranetrn_12345_concentration_level")
+    status_sensor = hass.states.get("sensor.aranetrn_12345_threshold_indication")
     status_sensor_attrs = status_sensor.attributes
     assert status_sensor.state == "green"
     assert (
-        status_sensor_attrs[ATTR_FRIENDLY_NAME] == "AranetRn+ 12345 Concentration Level"
+        status_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "AranetRn+ 12345 Threshold Indication"
     )
     assert status_sensor_attrs[ATTR_OPTIONS] == ["error", "green", "yellow", "red"]