diff --git a/custom_components/mikrotik_router/mikrotik_controller.py b/custom_components/mikrotik_router/mikrotik_controller.py
index 7a5db87..dc35455 100644
--- a/custom_components/mikrotik_router/mikrotik_controller.py
+++ b/custom_components/mikrotik_router/mikrotik_controller.py
@@ -107,6 +107,7 @@ class MikrotikControllerData:
             "routerboard": {},
             "resource": {},
             "health": {},
+            "health7": {},
             "interface": {},
             "bridge": {},
             "bridge_host": {},
@@ -1218,18 +1219,32 @@ class MikrotikControllerData:
     # ---------------------------
     def get_system_health(self):
         """Get routerboard data from Mikrotik"""
-        self.data["health"] = parse_api(
-            data=self.data["health"],
-            source=self.api.path("/system/health"),
-            vals=[
-                {"name": "temperature", "default": "unknown"},
-                {"name": "cpu-temperature", "default": "unknown"},
-                {"name": "power-consumption", "default": "unknown"},
-                {"name": "board-temperature1", "default": "unknown"},
-                {"name": "fan1-speed", "default": "unknown"},
-                {"name": "fan2-speed", "default": "unknown"},
-            ],
-        )
+        if self.major_fw_version >= 7:
+            self.data["health7"] = parse_api(
+                data=self.data["health7"],
+                source=self.api.path("/system/health"),
+                key="name",
+                vals=[
+                    {"name": "value", "default": "unknown"},
+                ],
+            )
+            for uid, vals in self.data["health7"].items():
+                self.data["health"][uid] = vals["value"]
+
+        else:
+            self.data["health"] = parse_api(
+                data=self.data["health"],
+                source=self.api.path("/system/health"),
+                vals=[
+                    {"name": "temperature", "default": "unknown"},
+                    {"name": "voltage", "default": "unknown"},
+                    {"name": "cpu-temperature", "default": "unknown"},
+                    {"name": "power-consumption", "default": "unknown"},
+                    {"name": "board-temperature1", "default": "unknown"},
+                    {"name": "fan1-speed", "default": "unknown"},
+                    {"name": "fan2-speed", "default": "unknown"},
+                ],
+            )
 
     # ---------------------------
     #   get_system_resource
diff --git a/custom_components/mikrotik_router/sensor.py b/custom_components/mikrotik_router/sensor.py
index 712269e..7e4c3b3 100644
--- a/custom_components/mikrotik_router/sensor.py
+++ b/custom_components/mikrotik_router/sensor.py
@@ -9,6 +9,7 @@ from homeassistant.const import (
     ATTR_ATTRIBUTION,
     ATTR_DEVICE_CLASS,
     TEMP_CELSIUS,
+    ELECTRIC_POTENTIAL_VOLT,
 )
 
 from homeassistant.helpers.entity import EntityCategory
@@ -65,6 +66,16 @@ SENSOR_TYPES = {
         ATTR_ATTR: "temperature",
         ATTR_CTGR: None,
     },
+    "system_voltage": {
+        ATTR_DEVICE_CLASS: SensorDeviceClass.VOLTAGE,
+        ATTR_ICON: "mdi:lightning-bolt",
+        ATTR_LABEL: "Voltage",
+        ATTR_UNIT: ELECTRIC_POTENTIAL_VOLT,
+        ATTR_GROUP: "System",
+        ATTR_PATH: "health",
+        ATTR_ATTR: "voltage",
+        ATTR_CTGR: EntityCategory.DIAGNOSTIC,
+    },
     "system_cpu-temperature": {
         ATTR_DEVICE_CLASS: SensorDeviceClass.TEMPERATURE,
         ATTR_ICON: "mdi:thermometer",
@@ -296,7 +307,9 @@ def update_items(inst, config_entry, mikrotik_controller, async_add_entities, se
     for sensor in SENSOR_TYPES:
         if "system_" in sensor:
             if (
-                mikrotik_controller.data[SENSOR_TYPES[sensor][ATTR_PATH]][
+                SENSOR_TYPES[sensor][ATTR_ATTR]
+                not in mikrotik_controller.data[SENSOR_TYPES[sensor][ATTR_PATH]]
+                or mikrotik_controller.data[SENSOR_TYPES[sensor][ATTR_PATH]][
                     SENSOR_TYPES[sensor][ATTR_ATTR]
                 ]
                 == "unknown"