diff --git a/homeassistant/components/arlo/sensor.py b/homeassistant/components/arlo/sensor.py
index d17668ae721..cc08cd133e4 100644
--- a/homeassistant/components/arlo/sensor.py
+++ b/homeassistant/components/arlo/sensor.py
@@ -1,4 +1,6 @@
 """Sensor support for Netgear Arlo IP cameras."""
+from __future__ import annotations
+
 from dataclasses import replace
 import logging
 
@@ -28,11 +30,21 @@ from . import ATTRIBUTION, DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
 
 _LOGGER = logging.getLogger(__name__)
 
-SENSOR_TYPES = (
-    SensorEntityDescription(key="last_capture", name="Last", icon="mdi:run-fast"),
-    SensorEntityDescription(key="total_cameras", name="Arlo Cameras", icon="mdi:video"),
+SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
-        key="captured_today", name="Captured Today", icon="mdi:file-video"
+        key="last_capture",
+        name="Last",
+        icon="mdi:run-fast",
+    ),
+    SensorEntityDescription(
+        key="total_cameras",
+        name="Arlo Cameras",
+        icon="mdi:video",
+    ),
+    SensorEntityDescription(
+        key="captured_today",
+        name="Captured Today",
+        icon="mdi:file-video",
     ),
     SensorEntityDescription(
         key="battery_level",
@@ -41,7 +53,9 @@ SENSOR_TYPES = (
         device_class=DEVICE_CLASS_BATTERY,
     ),
     SensorEntityDescription(
-        key="signal_strength", name="Signal Strength", icon="mdi:signal"
+        key="signal_strength",
+        name="Signal Strength",
+        icon="mdi:signal",
     ),
     SensorEntityDescription(
         key="temperature",
@@ -63,10 +77,12 @@ SENSOR_TYPES = (
     ),
 )
 
+SENSOR_KEYS = [desc.key for desc in SENSOR_TYPES]
+
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {
-        vol.Required(CONF_MONITORED_CONDITIONS, default=list(SENSOR_TYPES)): vol.All(
-            cv.ensure_list, [vol.In(SENSOR_TYPES)]
+        vol.Required(CONF_MONITORED_CONDITIONS, default=SENSOR_KEYS): vol.All(
+            cv.ensure_list, [vol.In(SENSOR_KEYS)]
         )
     }
 )