diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..313dd2c
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,19 @@
+# Repository Guidelines
+
+## Project Structure & Module Organization
+The Vue 3 frontend lives under `src/`. `main.ts` wires the router and Pinia, while `App.vue` hosts global layout. Page-level views sit in `src/views/` (e.g. `AnalyticsView.vue`), with shared widgets under `src/components/`. Pinia logic is grouped in `src/stores/` (one file per domain such as `energy.ts` or `room.ts`), and API/WebSocket helpers in `src/services/`. Reusable hooks belong in `src/composables/`. Static files and icons stay in `public/` or `src/assets/`. Keep demo tooling like `test-websocket.html` at the repo root; production builds land in `dist/`.
+
+## Build, Test, and Development Commands
+Run `npm install` once after cloning. `npm run dev` starts Vite locally; use `npm run dev-server` when you need LAN access. `npm run build` performs a type-safe production build (calls `npm run type-check` plus `vite build`). `npm run preview` serves the built bundle. Execute `npm run test:unit` for Vitest suites, `npm run lint` for ESLint (auto-fix enabled), and `npm run format` to apply Prettier to `src/`.
+
+## Coding Style & Naming Conventions
+Follow the ESLint + Prettier flat config: 2-space indentation, single quotes in TS, and script setup in Vue SFCs when practical. Name Vue files in PascalCase (`EnergyOverviewCard.vue`), stores in camelCase (`energy.ts` exporting `useEnergyStore`), and composables with the `use` prefix. Keep Tailwind utility classes readable by grouping per concern. Avoid unchecked `console.log`; prefer the logging helpers already present in stores.
+
+## Testing Guidelines
+Vitest with the `jsdom` environment powers unit tests; place suites alongside features in `src/**/__tests__/` using `*.spec.ts`. Mock API and WebSocket calls by leveraging Pinia store injection or `vi.mock('../services/api')`. Every new store action or view-level computed branch should gain coverage. Run `npm run test:unit -- --run --coverage` before opening a PR if you add complex domain logic.
+
+## Commit & Pull Request Guidelines
+Commits use short, imperative summaries without prefixes (see `git log`). Keep subject lines under ~70 characters and include the affected area, e.g., `Refine room status badges`. Squash fixups locally rather than pushing noisy history. PRs should link to Jira/GitHub issues when relevant, include screenshots or GIFs for UI changes, list test commands run, and call out backend dependencies (e.g., new API fields).
+
+## Environment & Configuration
+Frontend defaults to `http://localhost:8000`; override with `VITE_API_BASE_URL` in a `.env.local`. Document new environment flags in `README.md`. Never commit real credentials—use the provided TypeScript definitions in `env.d.ts` to keep variable access typed.
diff --git a/src/components/cards/DetailedSensorCard.vue b/src/components/cards/DetailedSensorCard.vue
index 39fe1ec..a55159d 100644
--- a/src/components/cards/DetailedSensorCard.vue
+++ b/src/components/cards/DetailedSensorCard.vue
@@ -9,7 +9,7 @@
           </div>
           <div>
             <h3 class="font-medium text-gray-900">{{ sensor.name }}</h3>
-            <p class="text-sm text-gray-500">{{ sensor.id }}</p>
+            <p class="text-sm text-gray-500">{{ sensor.sensor_id }}</p>
           </div>
         </div>
         <div class="flex items-center gap-2">
@@ -30,9 +30,9 @@
       <!-- Room Assignment -->
       <div>
         <label class="block text-sm font-medium text-gray-700 mb-2">Room Assignment</label>
-        <select 
-          :value="sensor.room" 
-          @change="$emit('updateRoom', sensor.id, ($event.target as HTMLSelectElement).value)"
+        <select
+          :value="sensor.room"
+          @change="$emit('updateRoom', sensor.sensor_id, ($event.target as HTMLSelectElement).value)"
           class="w-full px-3 py-2 border border-gray-200 rounded-lg bg-white text-sm"
         >
           <option value="">Unassigned</option>
@@ -100,7 +100,7 @@
             <span class="font-medium">Location:</span>
             <div>{{ sensor.metadata.location }}</div>
           </div>
-          <div>
+          <div v-if="sensor.lastSeen">
             <span class="font-medium">Last Seen:</span>
             <div>{{ formatTime(sensor.lastSeen) }}</div>
           </div>
@@ -166,26 +166,27 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import { useSensorStore } from '@/stores/sensor'
+import type { SensorDevice, SensorAction } from '@/services'
 
 const props = defineProps<{
-  sensor: any
+  sensor: SensorDevice
   availableRooms: string[]
   isExecutingAction?: boolean
 }>()
 
 const emit = defineEmits<{
   updateRoom: [sensorId: string, newRoom: string]
-  executeAction: [sensor: any, action: any]
+  executeAction: [sensor: SensorDevice, action: SensorAction]
 }>()
 
 const sensorStore = useSensorStore()
 
-const getSensorValues = (sensor: any) => {
+const getSensorValues = (sensor: SensorDevice) => {
   const values = []
 
   // Get real-time sensor reading from store
-  const latestReading = sensorStore.latestReadings.get(sensor.id) || sensorStore.latestReadings.get(sensor.sensor_id)
-  console.log(`[Detailed] Getting values for sensor ${sensor.id}, found reading:`, latestReading)
+  const latestReading = sensorStore.latestReadings.get(sensor.sensor_id)
+  console.log(`[Detailed] Getting values for sensor ${sensor.sensor_id}, found reading:`, latestReading)
   console.log('[Detailed] Available readings:', Array.from(sensorStore.latestReadings.keys()))
   console.log(`[Detailed] Sensor capabilities:`, sensor.capabilities?.monitoring)
 
@@ -315,25 +316,24 @@ const sensorValues = computed(() => getSensorValues(props.sensor))
 
 // Check if sensor was recently updated for pulsing animation
 const isRecentlyUpdated = computed(() => {
-  return sensorStore.recentlyUpdatedSensors.has(props.sensor.id) ||
-         sensorStore.recentlyUpdatedSensors.has(props.sensor.sensor_id)
+  return sensorStore.recentlyUpdatedSensors.has(props.sensor.sensor_id)
 })
 
-const getDefaultTags = (sensor: any) => {
-  const tags = [sensor.type]
-  
-  if (sensor.metadata.battery) {
+const getDefaultTags = (sensor: SensorDevice): string[] => {
+  const tags: string[] = [sensor.type]
+
+  if (sensor.metadata?.battery) {
     tags.push('wireless')
   } else {
     tags.push('wired')
   }
-  
+
   if (sensor.capabilities.actions.length > 0) {
     tags.push('controllable')
   } else {
     tags.push('monitor-only')
   }
-  
+
   return tags
 }
 
diff --git a/src/components/modals/ActionModal.vue b/src/components/modals/ActionModal.vue
index 4abc18a..10a2c66 100644
--- a/src/components/modals/ActionModal.vue
+++ b/src/components/modals/ActionModal.vue
@@ -131,14 +131,20 @@
 
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
+import type { SensorDevice, SensorAction } from '@/services'
+
+interface ActionParameters {
+  value?: number | string | boolean
+  [key: string]: unknown
+}
 
 const props = defineProps<{
-  sensor: any
-  action: any
+  sensor: SensorDevice
+  action: SensorAction
 }>()
 
 const emit = defineEmits<{
-  execute: [sensorId: string, actionId: string, parameters: any]
+  execute: [sensorId: string, actionId: string, parameters: ActionParameters]
   close: []
 }>()
 
@@ -182,7 +188,7 @@ const getUnit = () => {
 const executeAction = async () => {
   isExecuting.value = true
 
-  const parameters: any = {}
+  const parameters: ActionParameters = {}
 
   if (props.action.type === 'adjust') {
     if (hasNumericRange.value) {
@@ -195,7 +201,7 @@ const executeAction = async () => {
   }
 
   try {
-    emit('execute', props.sensor.id, props.action.id, parameters)
+    emit('execute', props.sensor.sensor_id, props.action.id, parameters)
   } catch (error) {
     console.error('Failed to execute action:', error)
   } finally {
diff --git a/src/composables/useApi.ts b/src/composables/useApi.ts
index 80ad628..a2fd5bd 100644
--- a/src/composables/useApi.ts
+++ b/src/composables/useApi.ts
@@ -3,12 +3,15 @@
  * Provides reactive API state management
  */
 import { ref, reactive } from 'vue'
-import { 
-  sensorsApi, 
-  roomsApi, 
-  analyticsApi, 
+import {
+  sensorsApi,
+  roomsApi,
+  analyticsApi,
   healthApi,
-  type SensorInfo,
+  type SensorDevice,
+  type SensorType,
+  type SensorStatus,
+  type SensorMetadata,
   type RoomInfo,
   type RoomData,
   type AnalyticsSummary,
@@ -69,23 +72,23 @@ export function useSensorsApi() {
     error: null
   })
 
-  const sensors = ref<SensorInfo[]>([])
-  const currentSensor = ref<SensorInfo | null>(null)
+  const sensors = ref<SensorDevice[]>([])
+  const currentSensor = ref<SensorDevice | null>(null)
   const sensorData = ref<DataResponse | null>(null)
 
   const { handleApiCall } = useApi()
 
   const fetchSensors = async (params?: {
     room?: string
-    sensor_type?: any
-    status?: any
+    sensor_type?: SensorType
+    status?: SensorStatus
   }) => {
     const result = await handleApiCall(
       () => sensorsApi.getSensors(params),
       state
     )
-    if (result) {
-      sensors.value = result
+    if (result && result.sensors) {
+      sensors.value = result.sensors
     }
     return result
   }
@@ -129,7 +132,7 @@ export function useSensorsApi() {
 
   const updateSensorMetadata = async (
     sensorId: string,
-    metadata: Record<string, any>
+    metadata: SensorMetadata
   ) => {
     return handleApiCall(
       () => sensorsApi.updateSensorMetadata(sensorId, metadata),
diff --git a/src/services/api.ts b/src/services/api.ts
index 9a36455..eedf2ed 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -1,11 +1,19 @@
 // Base configuration
 const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:8000'
 
+// Extend Window interface for auth store
+interface WindowWithAuth extends Window {
+  __AUTH_STORE__?: {
+    getAuthHeader: () => Record<string, string>
+    ensureAuthenticated: () => Promise<boolean>
+  }
+}
+
 // API Response types
-export interface ApiResponse<T = any> {
+export interface ApiResponse<T = unknown> {
   data: T
   total_count?: number
-  query?: any
+  query?: Record<string, unknown>
   execution_time_ms?: number
 }
 
@@ -71,7 +79,7 @@ export interface SensorReading {
     value: number
     unit: string
   }
-  metadata?: Record<string, any>
+  metadata?: Record<string, unknown>
 }
 
 export interface RoomInfo {
@@ -169,7 +177,7 @@ export interface SystemEvent {
   event_type: string
   severity: 'info' | 'warning' | 'error' | 'critical'
   message: string
-  details?: Record<string, any>
+  details?: Record<string, unknown>
   sensor_id?: string
   room?: string
 }
@@ -187,6 +195,9 @@ export interface SensorDevice {
     actions: SensorAction[]
   }
   metadata: SensorMetadata
+  tags?: string[]
+  lastSeen?: number
+  total_readings?: number
 }
 
 export interface SensorAction {
@@ -231,6 +242,7 @@ export enum SensorStatus {
   ONLINE = 'online',
   OFFLINE = 'offline',
   ERROR = 'error',
+  ACTIVE = 'active',
 }
 
 export interface SensorMetadata {
@@ -242,6 +254,7 @@ export interface SensorMetadata {
   model?: string
   firmware?: string
   battery?: number
+  signalStrength?: number
   created_at?: string
   updated_at?: string
   manufacturer?: string
@@ -277,7 +290,7 @@ class ApiClient {
     // Dynamically get auth headers to avoid circular imports
     try {
       // Try to get from window first (for when store is exposed)
-      const authStore = (window as any).__AUTH_STORE__
+      const authStore = (window as WindowWithAuth).__AUTH_STORE__
       if (authStore && typeof authStore.getAuthHeader === 'function') {
         return authStore.getAuthHeader()
       }
@@ -333,7 +346,7 @@ class ApiClient {
     }
   }
 
-  async get<T>(endpoint: string, params?: Record<string, any>): Promise<T> {
+  async get<T>(endpoint: string, params?: Record<string, string | number | boolean | string[]>): Promise<T> {
     const url = new URL(`${this.baseUrl}${endpoint}`)
 
     if (params) {
@@ -366,14 +379,14 @@ class ApiClient {
     return await response.json()
   }
 
-  async post<T>(endpoint: string, data?: any): Promise<T> {
+  async post<T>(endpoint: string, data?: Record<string, unknown> | unknown[]): Promise<T> {
     return this.request<T>(endpoint, {
       method: 'POST',
       body: data ? JSON.stringify(data) : undefined,
     })
   }
 
-  async put<T>(endpoint: string, data?: any): Promise<T> {
+  async put<T>(endpoint: string, data?: Record<string, unknown> | unknown[]): Promise<T> {
     return this.request<T>(endpoint, {
       method: 'PUT',
       body: data ? JSON.stringify(data) : undefined,
diff --git a/src/services/sensorsApi.ts b/src/services/sensorsApi.ts
index 547370a..bce452d 100644
--- a/src/services/sensorsApi.ts
+++ b/src/services/sensorsApi.ts
@@ -77,12 +77,22 @@ export const sensorsApi = {
   }): Promise<{
     data: SensorReading[]
     count: number
-    export_params: any
+    export_params: {
+      start_time: number
+      end_time: number
+      sensor_ids?: string
+      format?: 'json' | 'csv'
+    }
   }> {
     return apiClient.get<{
       data: SensorReading[]
       count: number
-      export_params: any
+      export_params: {
+        start_time: number
+        end_time: number
+        sensor_ids?: string
+        format?: 'json' | 'csv'
+      }
     }>('/api/v1/export', params)
   },
 }
diff --git a/src/stores/analytics.ts b/src/stores/analytics.ts
index 45032b3..521e14a 100644
--- a/src/stores/analytics.ts
+++ b/src/stores/analytics.ts
@@ -10,6 +10,13 @@ import {
   type HealthCheck,
 } from '@/services'
 
+// Extend Window interface for auth store
+interface WindowWithAuth extends Window {
+  __AUTH_STORE__?: {
+    ensureAuthenticated: () => Promise<boolean>
+  }
+}
+
 export const useAnalyticsStore = defineStore('analytics', () => {
   // State
   const analyticsData = ref<{
@@ -41,7 +48,7 @@ export const useAnalyticsStore = defineStore('analytics', () => {
         console.warn('Authentication error detected, attempting to re-authenticate...')
 
         try {
-          const authStore = (window as any).__AUTH_STORE__
+          const authStore = (window as WindowWithAuth).__AUTH_STORE__
           if (authStore && typeof authStore.ensureAuthenticated === 'function') {
             const authSuccess = await authStore.ensureAuthenticated()
             if (authSuccess) {
diff --git a/src/stores/room.ts b/src/stores/room.ts
index 94fd463..5f68a25 100644
--- a/src/stores/room.ts
+++ b/src/stores/room.ts
@@ -3,6 +3,13 @@ import { ref, reactive } from 'vue'
 import { roomsApi, type RoomInfo as ApiRoomInfo, type SensorReading } from '@/services'
 import { useSensorStore } from './sensor'
 
+// Extend Window interface for auth store
+interface WindowWithAuth extends Window {
+  __AUTH_STORE__?: {
+    ensureAuthenticated: () => Promise<boolean>
+  }
+}
+
 interface RoomMetrics {
   room: string
   sensors: string[]
@@ -221,7 +228,7 @@ export const useRoomStore = defineStore('room', () => {
         console.warn('Authentication error detected, attempting to re-authenticate...')
 
         try {
-          const authStore = (window as any).__AUTH_STORE__
+          const authStore = (window as WindowWithAuth).__AUTH_STORE__
           if (authStore && typeof authStore.ensureAuthenticated === 'function') {
             const authSuccess = await authStore.ensureAuthenticated()
             if (authSuccess) {
diff --git a/src/stores/sensor.ts b/src/stores/sensor.ts
index cf3888f..e218193 100644
--- a/src/stores/sensor.ts
+++ b/src/stores/sensor.ts
@@ -6,13 +6,21 @@ import {
   type SensorDevice,
   type SensorStatus,
   type SensorReading,
+  type SensorMetadata,
 } from '@/services'
 
+// Extend Window interface for auth store
+interface WindowWithAuth extends Window {
+  __AUTH_STORE__?: {
+    ensureAuthenticated: () => Promise<boolean>
+  }
+}
+
 export const useSensorStore = defineStore('sensor', () => {
   // State
   const sensorDevices = reactive<Map<string, SensorDevice>>(new Map())
   const latestReadings = reactive<Map<string, SensorReading>>(new Map())
-  const sensorsData = reactive<Map<string, any>>(new Map()) // Legacy support
+  const sensorsData = reactive<Map<string, SensorReading>>(new Map()) // Legacy support - deprecated, use latestReadings instead
   const recentlyUpdatedSensors = reactive<Set<string>>(new Set()) // Track recently updated sensors
   const totalReadings = ref<number>(0) // Total number of readings across all sensors
   const apiLoading = ref<boolean>(false)
@@ -27,6 +35,26 @@ export const useSensorStore = defineStore('sensor', () => {
     ).length
   })
 
+  // Aggregated CO2 metrics
+  const averageCO2Level = computed<number>(() => {
+    const readings = Array.from(latestReadings.values())
+    const co2Readings = readings.filter(r => r.co2?.value !== undefined)
+
+    if (co2Readings.length === 0) return 0
+
+    const totalCO2 = co2Readings.reduce((sum, r) => sum + (r.co2?.value || 0), 0)
+    return totalCO2 / co2Readings.length
+  })
+
+  const maxCO2Level = computed<number>(() => {
+    const readings = Array.from(latestReadings.values())
+    const co2Values = readings
+      .filter(r => r.co2?.value !== undefined)
+      .map(r => r.co2?.value || 0)
+
+    return co2Values.length > 0 ? Math.max(...co2Values) : 0
+  })
+
   // Actions
   function updateSensorRoom(sensorId: string, newRoom: string): void {
     const sensor = sensorDevices.get(sensorId)
@@ -93,7 +121,7 @@ export const useSensorStore = defineStore('sensor', () => {
         console.warn('Authentication error detected, attempting to re-authenticate...')
 
         try {
-          const authStore = (window as any).__AUTH_STORE__
+          const authStore = (window as WindowWithAuth).__AUTH_STORE__
           if (authStore && typeof authStore.ensureAuthenticated === 'function') {
             const authSuccess = await authStore.ensureAuthenticated()
             if (authSuccess) {
@@ -193,7 +221,7 @@ export const useSensorStore = defineStore('sensor', () => {
         let totalReadingsCount: number = 0
 
         result.sensors.forEach((sensor) => {
-          const sensorKey: string = sensor._id || sensor.sensor_id
+          const sensorKey: string = sensor.sensor_id
           const sensorType: string = sensor.sensor_type || sensor.type
           const sensorName: string = sensor.name || ''
 
@@ -204,14 +232,12 @@ export const useSensorStore = defineStore('sensor', () => {
 
           const normalizedSensor = {
             ...sensor,
-            id: sensorKey,
             type: sensorType,
             capabilities: {
-              actions: [], // Default empty actions array
               monitoring:
                 sensor.capabilities?.monitoring ||
                 getDefaultMonitoringCapabilities(sensorType, sensorName),
-              ...sensor.capabilities,
+              actions: sensor.capabilities?.actions || [],
             },
             metadata: {
               model: sensor.metadata?.model || 'Unknown',
@@ -221,10 +247,10 @@ export const useSensorStore = defineStore('sensor', () => {
               signalStrength: sensor.metadata?.signalStrength,
               ...sensor.metadata,
             },
-            lastSeen: sensor.last_seen || Date.now() / 1000,
+            lastSeen: sensor.lastSeen || Date.now() / 1000,
           }
 
-          sensorDevices.set(sensorKey, normalizedSensor)
+          sensorDevices.set(sensorKey, normalizedSensor as SensorDevice)
         })
 
         // Update total readings
@@ -246,7 +272,7 @@ export const useSensorStore = defineStore('sensor', () => {
     return handleApiCall(() => sensorsApi.getSensorData(sensorId, params))
   }
 
-  async function updateApiSensorMetadata(sensorId: string, metadata: Record<string, any>) {
+  async function updateApiSensorMetadata(sensorId: string, metadata: SensorMetadata) {
     return handleApiCall(() => sensorsApi.updateSensorMetadata(sensorId, metadata))
   }
 
@@ -276,6 +302,8 @@ export const useSensorStore = defineStore('sensor', () => {
     // Computed
     totalSensors,
     activeSensors,
+    averageCO2Level,
+    maxCO2Level,
 
     // Actions
     updateEnergySensors,
diff --git a/src/stores/settings.ts b/src/stores/settings.ts
index bbd6c2d..76a1137 100644
--- a/src/stores/settings.ts
+++ b/src/stores/settings.ts
@@ -33,6 +33,18 @@ interface AppSettings {
   developerMode: boolean
 }
 
+// Type for setting values
+type SettingValue =
+  | string
+  | number
+  | boolean
+  | Theme
+  | Language
+  | NavigationMode
+  | UISettings
+  | NotificationSettings
+  | AppSettings
+
 const DEFAULT_SETTINGS: AppSettings = {
   theme: 'system',
   language: 'en',
@@ -93,8 +105,9 @@ export const useSettingsStore = defineStore('settings', () => {
     saveSettings()
   }
 
-  function updateSetting(path: string, value: any) {
+  function updateSetting(path: string, value: SettingValue): void {
     const keys = path.split('.')
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
     let current: any = settings
 
     for (let i = 0; i < keys.length - 1; i++) {
@@ -105,8 +118,9 @@ export const useSettingsStore = defineStore('settings', () => {
     saveSettings()
   }
 
-  function getSetting(path: string): any {
+  function getSetting(path: string): SettingValue | undefined {
     const keys = path.split('.')
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
     let current: any = settings
 
     for (const key of keys) {
@@ -114,7 +128,7 @@ export const useSettingsStore = defineStore('settings', () => {
       if (current === undefined) break
     }
 
-    return current
+    return current as SettingValue | undefined
   }
 
   function exportSettings(): string {
diff --git a/src/views/HomeView.vue b/src/views/HomeView.vue
index 4f7bb13..f15ed1b 100644
--- a/src/views/HomeView.vue
+++ b/src/views/HomeView.vue
@@ -22,6 +22,8 @@
           :content="websocketStore.isConnected ? 'Connected' : 'Disconnected'"
         />
         <MetricCard title="Average Usage" :content="averageEnergyUsage" details="kWh" />
+        <MetricCard title="Average CO2" :content="averageCO2" details="ppm" />
+        <MetricCard title="Max CO2" :content="maxCO2" details="ppm" />
         <GraphMetricCard
           title="Real-time Energy"
           :content="currentEnergyValue"
@@ -29,18 +31,6 @@
           :trend-data="energyStore.energyHistory.slice(-8)"
           trend-direction="neutral"
         />
-        <GraphMetricCard
-          title="Current Knowledge"
-          content="86%"
-          :trend-data="[203, 78, 80, 82, 142, 85, 85, 86]"
-          trend-direction="down"
-        />
-        <GraphMetricCard
-          title="Knowledge Gain"
-          content="+34%"
-          :trend-data="[20, 25, 28, 30, 32, 33, 34, 34]"
-          trend-direction="neutral"
-        />
       </div>
       <div>
         <RealtimeEnergyChartCard title="Month" />
@@ -66,11 +56,13 @@ import SensorConsumptionTable from '@/components/cards/SensorConsumptionTable.vu
 import RoomMetricsCard from '@/components/cards/RoomMetricsCard.vue'
 import AirQualityCard from '@/components/cards/AirQualityCard.vue'
 import { useEnergyStore } from '@/stores/energy'
+import { useSensorStore } from '@/stores/sensor'
 import { useSettingsStore } from '@/stores/settings'
 import { computed, onMounted, onUnmounted } from 'vue'
 import { useWebSocketStore } from '@/stores/websocket'
 
 const energyStore = useEnergyStore()
+const sensorStore = useSensorStore()
 const websocketStore = useWebSocketStore()
 const settingsStore = useSettingsStore()
 
@@ -83,6 +75,14 @@ const averageEnergyUsage = computed(() => {
   return energyStore.averageEnergyUsage.toFixed(2)
 })
 
+const averageCO2 = computed(() => {
+  return Math.round(sensorStore.averageCO2Level)
+})
+
+const maxCO2 = computed(() => {
+  return Math.round(sensorStore.maxCO2Level)
+})
+
 onMounted(() => {
   settingsStore.initialize()
 
diff --git a/src/views/SensorManagementView.vue b/src/views/SensorManagementView.vue
index a0dab2b..e619e4e 100644
--- a/src/views/SensorManagementView.vue
+++ b/src/views/SensorManagementView.vue
@@ -201,6 +201,7 @@ import { ref, computed, onMounted, onUnmounted } from 'vue'
 import { useSensorStore } from '@/stores/sensor'
 import { useRoomStore } from '@/stores/room'
 import { useWebSocketStore } from '@/stores/websocket'
+import type { SensorDevice, SensorAction } from '@/services'
 import ActionModal from '@/components/modals/ActionModal.vue'
 import RoomManagementModal from '@/components/modals/RoomManagementModal.vue'
 import SimpleSensorCard from '@/components/cards/SimpleSensorCard.vue'
@@ -217,8 +218,8 @@ const selectedType = ref('')
 const selectedStatus = ref('')
 
 const showActionModal = ref(false)
-const selectedSensor = ref<any>(null)
-const selectedAction = ref<any>(null)
+const selectedSensor = ref<SensorDevice | null>(null)
+const selectedAction = ref<SensorAction | null>(null)
 const isExecutingAction = ref(false)
 
 const showRoomManagementModal = ref(false)
@@ -241,17 +242,22 @@ const updateRoom = (sensorId: string, newRoom: string) => {
   sensorStore.updateSensorRoom(sensorId, newRoom)
 }
 
-const executeAction = (sensor: any, action: any) => {
+const executeAction = (sensor: SensorDevice, action: SensorAction) => {
   if (action.parameters) {
     selectedSensor.value = sensor
     selectedAction.value = action
     showActionModal.value = true
   } else {
-    handleActionExecute(sensor.id, action.id, {})
+    handleActionExecute(sensor.sensor_id, action.id, {})
   }
 }
 
-const handleActionExecute = async (sensorId: string, actionId: string, parameters: any) => {
+interface ActionParameters {
+  value?: number | string | boolean
+  [key: string]: unknown
+}
+
+const handleActionExecute = async (sensorId: string, actionId: string, parameters: ActionParameters) => {
   isExecutingAction.value = true
   try {
     await sensorStore.executeSensorAction(sensorId, actionId)