diff --git a/custom_components/mikrotik_router/switch_types.py b/custom_components/mikrotik_router/switch_types.py
new file mode 100644
index 0000000..7251957
--- /dev/null
+++ b/custom_components/mikrotik_router/switch_types.py
@@ -0,0 +1,47 @@
+"""Definitions for Mikrotik Router sensor entities."""
+from dataclasses import dataclass, field
+from typing import List
+from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
+from homeassistant.helpers.entity import EntityCategory
+from homeassistant.components.switch import (
+    SwitchDeviceClass,
+    SwitchEntityDescription,
+)
+
+from .const import DOMAIN
+
+
+DEVICE_ATTRIBUTES_CLIENT_TRAFFIC = ["address", "mac-address", "host-name"]
+
+
+@dataclass
+class MikrotikSwitchEntityDescription(SwitchEntityDescription):
+    """Class describing mikrotik entities."""
+
+    device_class: str = SwitchDeviceClass.SWITCH
+
+    ha_group: str = ""
+    ha_connection: str = ""
+    ha_connection_value: str = ""
+    data_path: str = ""
+    data_attribute: str = ""
+    data_name: str = ""
+    data_uid: str = ""
+    data_reference: str = ""
+    data_attributes_list: List = field(default_factory=lambda: [])
+
+
+SENSOR_TYPES = {
+    "system_temperature": MikrotikSwitchEntityDescription(
+        key="system_temperature",
+        name="Temperature",
+        icon="mdi:thermometer",
+        entity_category=None,
+        ha_group="System",
+        data_path="health",
+        data_attribute="temperature",
+        data_name="",
+        data_uid="",
+        data_reference="",
+    ),
+}