diff --git a/app/models/managers/VirtualDeviceManager.php b/app/models/managers/VirtualDeviceManager.php
index 6f7029c..5a5f92f 100644
--- a/app/models/managers/VirtualDeviceManager.php
+++ b/app/models/managers/VirtualDeviceManager.php
@@ -1,21 +1,19 @@
 <?php
 class VirtualDeviceManager
 {
-    function fetch($url)
-    {
-        $json = json_decode(Utilities::CallAPI('GET', 'api.openweathermap.org/data/2.5/weather?q=prague&appid=1ee609f2fcf8048e84f1d2fb1d1d72b5', ''), true);
+	public function fetchEnabled($deviceId = null, $subDeviceId = null){
+		$sleepTime = DeviceManager::getDeviceById($deviceId)['sleep_time'];
 
-        if (DeviceManager::registeret('1ee609f2fcf8048e84f1d2fb1d1d72b5')) {
+		$LastRecordTime = new DateTime(RecordManager::getLastRecord($subDeviceId, 1)['time']);
+		$interval = $LastRecordTime->diff(new DateTime());
+		$hours   = $interval->format('%h');
+		$minutes = $interval->format('%i');
+		$lastSeen = ($hours * 60 + $minutes);
 
-            $deviceId = DeviceManager::getDeviceByToken('1ee609f2fcf8048e84f1d2fb1d1d72b5')['device_id'];
+		if ($lastSeen > $sleepTime || $sleepTime == 0) {
+			return true;
+		}
 
-            if (!SubDeviceManager::getSubDeviceByMaster($deviceId, 'weather-nice')) {
-                SubDeviceManager::create($deviceId, 'weather-nice', '');
-            }
-
-            RecordManager::create($deviceId, 'weather-nice', $json['weather'][0]['main']);
-        } else {
-            $deviceId = DeviceManager::create('1ee609f2fcf8048e84f1d2fb1d1d72b5', '1ee609f2fcf8048e84f1d2fb1d1d72b5')['device_id'];
-        }
-    }
+		return false;
+	}
 }
diff --git a/app/plugins/Covid.php b/app/plugins/Covid.php
index 8bb4f15..99f8dc7 100644
--- a/app/plugins/Covid.php
+++ b/app/plugins/Covid.php
@@ -3,21 +3,25 @@ class Covid extends VirtualDeviceManager {
 	private $country_sluig = "czech-republic";
 	private $api_uri = 'https://api.covid19api.com/live/country/%s/status/confirmed'; // Your redirect uri
 	private $virtual_device_name = "Covid";
-	private $fetch_iterval = "";
 
 	function fetch($url = 'true')
 	{
-		//todo fetch interval limit from sleep time
-		$finalUrl = sprintf($this->api_uri, $this->country_sluig);
-		$json = json_decode(Utilities::CallAPI('GET', $finalUrl, ''), true);
 
 		if (DeviceManager::registeret($this->virtual_device_name)) {
 			$deviceId = DeviceManager::getDeviceByToken($this->virtual_device_name)['device_id'];
 			$dataItems = ['Confirmed','Deaths','Recovered','Active'];
 			foreach ($dataItems as $dataItem) {
-				if (!SubDeviceManager::getSubDeviceByMaster($deviceId, strtolower($dataItem))) {
+				if (!$subDevice = SubDeviceManager::getSubDeviceByMaster($deviceId, strtolower($dataItem))) {
 					SubDeviceManager::create($deviceId, strtolower($dataItem), 'Cases');
 				}
+			}
+
+			if (!$this->fetchEnabled($deviceId,$subDevice['subdevice_id'])) die();
+
+			$finalUrl = sprintf($this->api_uri, $this->country_sluig);
+			$json = json_decode(Utilities::CallAPI('GET', $finalUrl, ''), true);
+
+			foreach ($dataItems as $dataItem) {
 				RecordManager::create($deviceId, strtolower($dataItem), $json[0][$dataItem]);
 			}
 		} else {
diff --git a/app/plugins/OpenWeatherMap.php b/app/plugins/OpenWeatherMap.php
index 91e7d53..f195dd2 100644
--- a/app/plugins/OpenWeatherMap.php
+++ b/app/plugins/OpenWeatherMap.php
@@ -1,26 +1,29 @@
 <?php
-class OpenWeatherMap
+class OpenWeatherMap extends VirtualDeviceManager
 {
 	private $city_sluig = "prague";
-	private $app_id= "1ee609f2fcf8048e84f1d2fb1d1d72b5";
+	private $app_id = "1ee609f2fcf8048e84f1d2fb1d1d72b5";
 	private $api_uri = 'api.openweathermap.org/data/2.5/weather?q=%s&appid=%s'; // Your redirect uri
 	private $virtual_device_name = "Weather";
-	private $fetch_iterval = "";
+	private $subdevice_type = "weather";
 
-    function fetch($url)
-    {
-		//todo fetch interval limit from sleep time
-		$finalUrl = sprintf($this->api_uri, $this->city_sluig, $this->app_id);
-		$json = json_decode(Utilities::CallAPI('GET', $finalUrl, ''), true);
+	function fetch($url)
+	{
 		if (DeviceManager::registeret($this->virtual_device_name)) {
 			$deviceId = DeviceManager::getDeviceByToken($this->virtual_device_name)['device_id'];
-			if (!SubDeviceManager::getSubDeviceByMaster($deviceId, 'weather')) {
-				SubDeviceManager::create($deviceId, 'weather', '');
+			if (!$subDevice = SubDeviceManager::getSubDeviceByMaster($deviceId, $this->subdevice_type)) {
+				SubDeviceManager::create($deviceId, $this->subdevice_type, '');
 			}
-			RecordManager::create($deviceId, 'weather', $json['weather'][0]['id']);
+
+			if (!$this->fetchEnabled($deviceId,$subDevice['subdevice_id'])) die();
+
+			$finalUrl = sprintf($this->api_uri, $this->city_sluig, $this->app_id);
+			$json = json_decode(Utilities::CallAPI('GET', $finalUrl, ''), true);
+
+			RecordManager::create($deviceId, $this->subdevice_type, $json['weather'][0]['id']);
 		} else {
 			DeviceManager::create($this->virtual_device_name, $this->virtual_device_name);
 			DeviceManager::approved($this->virtual_device_name);
 		}
-    }
+	}
 }