diff --git a/kasa/smart/modules/autooff.py b/kasa/smart/modules/autooff.py
index 385364fa..684a2c51 100644
--- a/kasa/smart/modules/autooff.py
+++ b/kasa/smart/modules/autooff.py
@@ -2,14 +2,13 @@
 
 from __future__ import annotations
 
+import logging
 from datetime import datetime, timedelta
-from typing import TYPE_CHECKING
 
 from ...feature import Feature
 from ..smartmodule import SmartModule
 
-if TYPE_CHECKING:
-    from ..smartdevice import SmartDevice
+_LOGGER = logging.getLogger(__name__)
 
 
 class AutoOff(SmartModule):
@@ -18,11 +17,17 @@ class AutoOff(SmartModule):
     REQUIRED_COMPONENT = "auto_off"
     QUERY_GETTER_NAME = "get_auto_off_config"
 
-    def __init__(self, device: SmartDevice, module: str):
-        super().__init__(device, module)
+    def _initialize_features(self):
+        """Initialize features after the initial update."""
+        if not isinstance(self.data, dict):
+            _LOGGER.warning(
+                "No data available for module, skipping %s: %s", self, self.data
+            )
+            return
+
         self._add_feature(
             Feature(
-                device,
+                self._device,
                 id="auto_off_enabled",
                 name="Auto off enabled",
                 container=self,
@@ -33,7 +38,7 @@ class AutoOff(SmartModule):
         )
         self._add_feature(
             Feature(
-                device,
+                self._device,
                 id="auto_off_minutes",
                 name="Auto off minutes",
                 container=self,
@@ -44,7 +49,7 @@ class AutoOff(SmartModule):
         )
         self._add_feature(
             Feature(
-                device,
+                self._device,
                 id="auto_off_at",
                 name="Auto off at",
                 container=self,
diff --git a/kasa/tests/smart/modules/test_autooff.py b/kasa/tests/smart/modules/test_autooff.py
new file mode 100644
index 00000000..c44617a7
--- /dev/null
+++ b/kasa/tests/smart/modules/test_autooff.py
@@ -0,0 +1,103 @@
+from __future__ import annotations
+
+import sys
+from datetime import datetime
+from typing import Optional
+
+import pytest
+from pytest_mock import MockerFixture
+
+from kasa import Module
+from kasa.smart import SmartDevice
+from kasa.tests.device_fixtures import parametrize
+
+autooff = parametrize(
+    "has autooff", component_filter="auto_off", protocol_filter={"SMART"}
+)
+
+
+@autooff
+@pytest.mark.parametrize(
+    "feature, prop_name, type",
+    [
+        ("auto_off_enabled", "enabled", bool),
+        ("auto_off_minutes", "delay", int),
+        ("auto_off_at", "auto_off_at", Optional[datetime]),
+    ],
+)
+@pytest.mark.skipif(
+    sys.version_info < (3, 10),
+    reason="Subscripted generics cannot be used with class and instance checks",
+)
+async def test_autooff_features(
+    dev: SmartDevice, feature: str, prop_name: str, type: type
+):
+    """Test that features are registered and work as expected."""
+    autooff = dev.modules.get(Module.AutoOff)
+    assert autooff is not None
+
+    prop = getattr(autooff, prop_name)
+    assert isinstance(prop, type)
+
+    feat = dev.features[feature]
+    assert feat.value == prop
+    assert isinstance(feat.value, type)
+
+
+@autooff
+async def test_settings(dev: SmartDevice, mocker: MockerFixture):
+    """Test autooff settings."""
+    autooff = dev.modules.get(Module.AutoOff)
+    assert autooff
+
+    enabled = dev.features["auto_off_enabled"]
+    assert autooff.enabled == enabled.value
+
+    delay = dev.features["auto_off_minutes"]
+    assert autooff.delay == delay.value
+
+    call = mocker.spy(autooff, "call")
+    new_state = True
+
+    await autooff.set_enabled(new_state)
+    call.assert_called_with(
+        "set_auto_off_config", {"enable": new_state, "delay_min": delay.value}
+    )
+    call.reset_mock()
+    await dev.update()
+
+    new_delay = 123
+
+    await autooff.set_delay(new_delay)
+
+    call.assert_called_with(
+        "set_auto_off_config", {"enable": new_state, "delay_min": new_delay}
+    )
+
+    await dev.update()
+
+    assert autooff.enabled == new_state
+    assert autooff.delay == new_delay
+
+
+@autooff
+@pytest.mark.parametrize("is_timer_active", [True, False])
+async def test_auto_off_at(
+    dev: SmartDevice, mocker: MockerFixture, is_timer_active: bool
+):
+    """Test auto-off at sensor."""
+    autooff = dev.modules.get(Module.AutoOff)
+    assert autooff
+
+    autooff_at = dev.features["auto_off_at"]
+
+    mocker.patch.object(
+        type(autooff),
+        "is_timer_active",
+        new_callable=mocker.PropertyMock,
+        return_value=is_timer_active,
+    )
+    if is_timer_active:
+        assert isinstance(autooff_at.value, datetime)
+    else:
+        assert autooff_at.value is None