diff --git a/custom_components/elro_connects/__init__.py b/custom_components/elro_connects/__init__.py
index a052d85..bf05d74 100644
--- a/custom_components/elro_connects/__init__.py
+++ b/custom_components/elro_connects/__init__.py
@@ -38,6 +38,9 @@ async def _async_update_data() -> dict[int, dict]:
             await elro_connects_api.async_update()
             device_update = copy.deepcopy(elro_connects_api.data)
             for device_id, device_data in device_update.items():
+                if ATTR_DEVICE_STATE not in device_data:
+                    # Skip entries without device state
+                    continue
                 if device_id not in coordinator_update:
                     # new device, or known state
                     coordinator_update[device_id] = device_data
diff --git a/custom_components/elro_connects/manifest.json b/custom_components/elro_connects/manifest.json
index db361d7..b003af8 100644
--- a/custom_components/elro_connects/manifest.json
+++ b/custom_components/elro_connects/manifest.json
@@ -4,8 +4,8 @@
   "config_flow": true,
   "documentation": "https://github.com/jbouwh/ha-elro-connects",
   "issue_tracker": "https://github.com/jbouwh/ha-elro-connects/issues",
-  "requirements": ["lib-elro-connects==0.4.2"],
+  "requirements": ["lib-elro-connects==0.4.4"],
   "codeowners": ["@jbouwh"],
   "iot_class": "local_polling",
-  "version": "0.1.3"
+  "version": "0.1.4"
 }
diff --git a/custom_components/elro_connects/siren.py b/custom_components/elro_connects/siren.py
index 86bc04d..f7aaa8a 100644
--- a/custom_components/elro_connects/siren.py
+++ b/custom_components/elro_connects/siren.py
@@ -1,9 +1,15 @@
 """The Elro Connects siren platform."""
 from __future__ import annotations
 
+from dataclasses import dataclass
 import logging
 
-from elro.command import SILENCE_ALARM, TEST_ALARM
+from elro.command import (
+    SILENCE_ALARM,
+    TEST_ALARM,
+    TEST_ALARM_WATER,
+    CommandAttributes,
+)
 from elro.device import (
     ALARM_CO,
     ALARM_FIRE,
@@ -27,38 +33,57 @@
 from .const import DOMAIN
 from .device import ElroConnectsEntity, ElroConnectsK1
 
+
+@dataclass
+class ElroSirenEntityDescription(SirenEntityDescription):
+    """A class that describes elro siren entities."""
+
+    test_alarm: CommandAttributes | None = None
+    silence_alarm: CommandAttributes | None = None
+
+
 _LOGGER = logging.getLogger(__name__)
 
 SIREN_DEVICE_TYPES = {
-    ALARM_CO: SirenEntityDescription(
+    ALARM_CO: ElroSirenEntityDescription(
         key=ALARM_CO,
         device_class="carbon_monoxide",
         name="CO Alarm",
         icon="mdi:molecule-co",
+        test_alarm=TEST_ALARM,
+        silence_alarm=SILENCE_ALARM,
     ),
-    ALARM_FIRE: SirenEntityDescription(
+    ALARM_FIRE: ElroSirenEntityDescription(
         key=ALARM_FIRE,
         device_class="smoke",
         name="Fire Alarm",
         icon="mdi:fire-alert",
+        test_alarm=TEST_ALARM,
+        silence_alarm=SILENCE_ALARM,
     ),
-    ALARM_HEAT: SirenEntityDescription(
+    ALARM_HEAT: ElroSirenEntityDescription(
         key=ALARM_HEAT,
         device_class="heat",
         name="Heat Alarm",
         icon="mdi:fire-alert",
+        test_alarm=TEST_ALARM,
+        silence_alarm=SILENCE_ALARM,
     ),
-    ALARM_SMOKE: SirenEntityDescription(
+    ALARM_SMOKE: ElroSirenEntityDescription(
         key=ALARM_SMOKE,
         device_class="smoke",
         name="Smoke Alarm",
         icon="mdi:smoke",
+        test_alarm=TEST_ALARM,
+        silence_alarm=SILENCE_ALARM,
     ),
-    ALARM_WATER: SirenEntityDescription(
+    ALARM_WATER: ElroSirenEntityDescription(
         key=ALARM_WATER,
         device_class="moisture",
         name="Water Alarm",
-        icon="mid:water-alert",
+        icon="mdi:water-alert",
+        test_alarm=TEST_ALARM_WATER,
+        silence_alarm=SILENCE_ALARM,
     ),
 }
 
@@ -94,11 +119,12 @@ def __init__(
         elro_connects_api: ElroConnectsK1,
         entry: ConfigEntry,
         device_id: int,
-        description: SirenEntityDescription,
+        description: ElroSirenEntityDescription,
     ) -> None:
         """Initialize a Fire Alarm Entity."""
         self._device_id = device_id
         self._elro_connects_api = elro_connects_api
+        self._description = description
         self._attr_supported_features = (
             SirenEntityFeature.TURN_ON | SirenEntityFeature.TURN_OFF
         )
@@ -122,7 +148,7 @@ async def async_turn_on(self, **kwargs) -> None:
         _LOGGER.debug("Sending test alarm request for entity %s", self.entity_id)
         await self._elro_connects_api.async_connect()
         await self._elro_connects_api.async_process_command(
-            TEST_ALARM, device_ID=self._device_id
+            self._description.test_alarm, device_ID=self._device_id
         )
 
         self.data[ATTR_DEVICE_STATE] = STATE_TEST_ALARM
@@ -133,7 +159,7 @@ async def async_turn_off(self, **kwargs) -> None:
         _LOGGER.debug("Sending silence alarm request for entity %s", self.entity_id)
         await self._elro_connects_api.async_connect()
         await self._elro_connects_api.async_process_command(
-            SILENCE_ALARM, device_ID=self._device_id
+            self._description.silence_alarm, device_ID=self._device_id
         )
 
         self.data[ATTR_DEVICE_STATE] = STATE_SILENCE
diff --git a/tests/elro_connects/test_common.py b/tests/elro_connects/test_common.py
index 866e441..e32fa80 100644
--- a/tests/elro_connects/test_common.py
+++ b/tests/elro_connects/test_common.py
@@ -53,4 +53,7 @@
         },
         "name": "Corner",
     },
+    6: {
+        "name": "Device with unknown state",
+    },
 }