diff --git a/homeassistant/components/rituals_perfume_genie/sensor.py b/homeassistant/components/rituals_perfume_genie/sensor.py
index 0172df4b1c1..d1fbb3f1cb1 100644
--- a/homeassistant/components/rituals_perfume_genie/sensor.py
+++ b/homeassistant/components/rituals_perfume_genie/sensor.py
@@ -106,7 +106,6 @@ class DiffuserBatterySensor(DiffuserEntity, SensorEntity):
 class DiffuserWifiSensor(DiffuserEntity, SensorEntity):
     """Representation of a diffuser wifi sensor."""
 
-    _attr_device_class = SensorDeviceClass.SIGNAL_STRENGTH
     _attr_native_unit_of_measurement = PERCENTAGE
     _attr_entity_category = EntityCategory.DIAGNOSTIC
 
diff --git a/tests/components/rituals_perfume_genie/test_sensor.py b/tests/components/rituals_perfume_genie/test_sensor.py
index e7b8daec27f..5b15febced3 100644
--- a/tests/components/rituals_perfume_genie/test_sensor.py
+++ b/tests/components/rituals_perfume_genie/test_sensor.py
@@ -64,7 +64,7 @@ async def test_sensors_diffuser_v1_battery_cartridge(hass: HomeAssistant) -> Non
     state = hass.states.get("sensor.genie_wifi")
     assert state
     assert state.state == str(diffuser.wifi_percentage)
-    assert state.attributes.get(ATTR_DEVICE_CLASS) == SensorDeviceClass.SIGNAL_STRENGTH
+    assert state.attributes.get(ATTR_DEVICE_CLASS) is None
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == PERCENTAGE
 
     entry = registry.async_get("sensor.genie_wifi")