diff --git a/homeassistant/components/rainbird/__init__.py b/homeassistant/components/rainbird/__init__.py
index 55ed421bd24..6aa6e837abe 100644
--- a/homeassistant/components/rainbird/__init__.py
+++ b/homeassistant/components/rainbird/__init__.py
@@ -2,12 +2,13 @@
 from __future__ import annotations
 
 import logging
-from typing import NamedTuple
 
 from pyrainbird import RainbirdController
 import voluptuous as vol
 
 from homeassistant.components import binary_sensor, sensor, switch
+from homeassistant.components.binary_sensor import BinarySensorEntityDescription
+from homeassistant.components.sensor import SensorEntityDescription
 from homeassistant.const import (
     CONF_FRIENDLY_NAME,
     CONF_HOST,
@@ -31,24 +32,31 @@ SENSOR_TYPE_RAINDELAY = "raindelay"
 SENSOR_TYPE_RAINSENSOR = "rainsensor"
 
 
-class RainBirdSensorMetadata(NamedTuple):
-    """Metadata for an individual RainBird sensor."""
-
-    name: str
-    icon: str
-    unit_of_measurement: str | None = None
-
-
-SENSOR_TYPES: dict[str, RainBirdSensorMetadata] = {
-    SENSOR_TYPE_RAINSENSOR: RainBirdSensorMetadata(
-        "Rainsensor",
+SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
+    SensorEntityDescription(
+        key=SENSOR_TYPE_RAINSENSOR,
+        name="Rainsensor",
         icon="mdi:water",
     ),
-    SENSOR_TYPE_RAINDELAY: RainBirdSensorMetadata(
-        "Raindelay",
+    SensorEntityDescription(
+        key=SENSOR_TYPE_RAINDELAY,
+        name="Raindelay",
         icon="mdi:water-off",
     ),
-}
+)
+
+BINARY_SENSOR_TYPES: tuple[BinarySensorEntityDescription, ...] = (
+    BinarySensorEntityDescription(
+        key=SENSOR_TYPE_RAINSENSOR,
+        name="Rainsensor",
+        icon="mdi:water",
+    ),
+    BinarySensorEntityDescription(
+        key=SENSOR_TYPE_RAINDELAY,
+        name="Raindelay",
+        icon="mdi:water-off",
+    ),
+)
 
 TRIGGER_TIME_SCHEMA = vol.All(
     cv.time_period, cv.positive_timedelta, lambda td: (td.total_seconds() // 60)
diff --git a/homeassistant/components/rainbird/binary_sensor.py b/homeassistant/components/rainbird/binary_sensor.py
index 9960d7670b2..476c2cfc8a2 100644
--- a/homeassistant/components/rainbird/binary_sensor.py
+++ b/homeassistant/components/rainbird/binary_sensor.py
@@ -3,15 +3,17 @@ import logging
 
 from pyrainbird import RainbirdController
 
-from homeassistant.components.binary_sensor import BinarySensorEntity
+from homeassistant.components.binary_sensor import (
+    BinarySensorEntity,
+    BinarySensorEntityDescription,
+)
 
 from . import (
+    BINARY_SENSOR_TYPES,
     DATA_RAINBIRD,
     RAINBIRD_CONTROLLER,
     SENSOR_TYPE_RAINDELAY,
     SENSOR_TYPE_RAINSENSOR,
-    SENSOR_TYPES,
-    RainBirdSensorMetadata,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -25,8 +27,8 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
     controller = hass.data[DATA_RAINBIRD][discovery_info[RAINBIRD_CONTROLLER]]
     add_entities(
         [
-            RainBirdSensor(controller, sensor_type, metadata)
-            for sensor_type, metadata in SENSOR_TYPES.items()
+            RainBirdSensor(controller, description)
+            for description in BINARY_SENSOR_TYPES
         ],
         True,
     )
@@ -38,28 +40,18 @@ class RainBirdSensor(BinarySensorEntity):
     def __init__(
         self,
         controller: RainbirdController,
-        sensor_type,
-        metadata: RainBirdSensorMetadata,
-    ):
+        description: BinarySensorEntityDescription,
+    ) -> None:
         """Initialize the Rain Bird sensor."""
-        self._sensor_type = sensor_type
+        self.entity_description = description
         self._controller = controller
 
-        self._attr_name = metadata.name
-        self._attr_icon = metadata.icon
-        self._state = None
-
-    @property
-    def is_on(self):
-        """Return true if the binary sensor is on."""
-        return None if self._state is None else bool(self._state)
-
-    def update(self):
+    def update(self) -> None:
         """Get the latest data and updates the states."""
         _LOGGER.debug("Updating sensor: %s", self.name)
         state = None
-        if self._sensor_type == SENSOR_TYPE_RAINSENSOR:
+        if self.entity_description.key == SENSOR_TYPE_RAINSENSOR:
             state = self._controller.get_rain_sensor_state()
-        elif self._sensor_type == SENSOR_TYPE_RAINDELAY:
+        elif self.entity_description.key == SENSOR_TYPE_RAINDELAY:
             state = self._controller.get_rain_delay()
-        self._state = None if state is None else bool(state)
+        self._attr_is_on = None if state is None else bool(state)
diff --git a/homeassistant/components/rainbird/sensor.py b/homeassistant/components/rainbird/sensor.py
index 36c3d50e1c1..2158bc5cf97 100644
--- a/homeassistant/components/rainbird/sensor.py
+++ b/homeassistant/components/rainbird/sensor.py
@@ -3,7 +3,7 @@ import logging
 
 from pyrainbird import RainbirdController
 
-from homeassistant.components.sensor import SensorEntity
+from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
 
 from . import (
     DATA_RAINBIRD,
@@ -11,7 +11,6 @@ from . import (
     SENSOR_TYPE_RAINDELAY,
     SENSOR_TYPE_RAINSENSOR,
     SENSOR_TYPES,
-    RainBirdSensorMetadata,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -25,10 +24,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
 
     controller = hass.data[DATA_RAINBIRD][discovery_info[RAINBIRD_CONTROLLER]]
     add_entities(
-        [
-            RainBirdSensor(controller, sensor_type, metadata)
-            for sensor_type, metadata in SENSOR_TYPES.items()
-        ],
+        [RainBirdSensor(controller, description) for description in SENSOR_TYPES],
         True,
     )
 
@@ -39,27 +35,16 @@ class RainBirdSensor(SensorEntity):
     def __init__(
         self,
         controller: RainbirdController,
-        sensor_type,
-        metadata: RainBirdSensorMetadata,
-    ):
+        description: SensorEntityDescription,
+    ) -> None:
         """Initialize the Rain Bird sensor."""
-        self._sensor_type = sensor_type
+        self.entity_description = description
         self._controller = controller
 
-        self._attr_name = metadata.name
-        self._attr_icon = metadata.icon
-        self._attr_unit_of_measurement = metadata.unit_of_measurement
-        self._state = None
-
-    @property
-    def state(self):
-        """Return the state of the sensor."""
-        return self._state
-
-    def update(self):
+    def update(self) -> None:
         """Get the latest data and updates the states."""
         _LOGGER.debug("Updating sensor: %s", self.name)
-        if self._sensor_type == SENSOR_TYPE_RAINSENSOR:
-            self._state = self._controller.get_rain_sensor_state()
-        elif self._sensor_type == SENSOR_TYPE_RAINDELAY:
-            self._state = self._controller.get_rain_delay()
+        if self.entity_description.key == SENSOR_TYPE_RAINSENSOR:
+            self._attr_state = self._controller.get_rain_sensor_state()
+        elif self.entity_description.key == SENSOR_TYPE_RAINDELAY:
+            self._attr_state = self._controller.get_rain_delay()