diff --git a/hobu_value_picker/app.js b/hobu_value_picker/app.js
index 96be1c9..7b63051 100644
--- a/hobu_value_picker/app.js
+++ b/hobu_value_picker/app.js
@@ -25,8 +25,6 @@ function connect(item) {
   Log.log('Init ' + UID + ' @' + HOST + ' with period of ' + item.callback.period);
   
   var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
-  var t = new Tinkerforge.BrickletTemperature(UID, ipcon); // Create device object
-  var h = new Tinkerforge.BrickletHumidity(UID, ipcon); // Create device object
   
   var counter = 0;
   var readyForNextNotification = true;
@@ -56,25 +54,25 @@ function connect(item) {
   
   ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
     function (connectReason) {
-      t.setTemperatureCallbackPeriod(item.callback.period);
-    }
-  );
+      var category = item.on.new.value.category;
 
-  // Register temperature callback
-  t.on(Tinkerforge.BrickletTemperature.CALLBACK_TEMPERATURE,
-    // Callback function for temperature callback (parameter has unit °C/100)
-    function (temperature) {
-      saveValue((temperature/100.0), item);
-      //Log.log('Temperature: ' + temperature/100.0 + ' °C');
-    }
-  );
-  
-  // Register humidity callback
-  h.on(Tinkerforge.BrickletHumidity.CALLBACK_HUMIDITY,
-    // Callback function for humidity callback (parameter has unit %RH/10)
-    function (humidity) {
-      saveValue((humidity/10.0), item);
-      //Log.log('Humidity: ' + humidity/10.0 + ' ' + item.on.new.value.category);
+      switch(connectReason) {
+      case Tinkerforge.IPConnection.CONNECT_REASON_REQUEST:
+        Log.log('Connect by request for '+UID+' @'+HOST);
+        break;
+      case Tinkerforge.IPConnection.CONNECT_REASON_AUTO_RECONNECT:
+        Log.log('Connect by auto-reconnect for '+UID+' @'+HOST);
+        break;
+      }
+
+      switch(category) {
+      case 'TEMPERATURE':
+        connectCategoryTemperature(item, ipcon);
+        break;
+      case '%RH':
+        connectCategoryHR(item, ipcon);
+        break;
+      }
     }
   );
   
@@ -85,6 +83,38 @@ function connect(item) {
   });
 }
 
+/* private */
+function connectCategoryTemperature(item, ipcon) {
+  var UID = item.uid;
+  var t = new Tinkerforge.BrickletTemperature(UID, ipcon); // Create device object
+  t.setTemperatureCallbackPeriod(item.callback.period);
+
+  // Register temperature callback
+  t.on(Tinkerforge.BrickletTemperature.CALLBACK_TEMPERATURE,
+    // Callback function for temperature callback (parameter has unit °C/100)
+    function (temperature) {
+      saveValue((temperature/100.0), item);
+      Log.log('Temperature: ' + temperature/100.0 + ' °C');
+    }
+  );
+}
+
+/* private */
+function connectCategoryHR(item, ipcon) {
+  var UID = item.uid;
+  var h = new Tinkerforge.BrickletHumidity(UID, ipcon); // Create device object
+  h.setHumidityCallbackPeriod(item.callback.period);
+  
+  // Register humidity callback
+  h.on(Tinkerforge.BrickletHumidity.CALLBACK_HUMIDITY,
+    // Callback function for humidity callback (parameter has unit %RH/10)
+    function (humidity) {
+      saveValue((humidity/10.0), item);
+      Log.log('Humidity: ' + humidity/10.0 + ' ' + item.on.new.value.category);
+    }
+  );
+}
+
 /* private */
 function saveValue(value, item) {
   var room = item.on.new.value.room;
diff --git a/hobu_value_picker/config.json b/hobu_value_picker/config.json
index 878d915..1967c4a 100644
--- a/hobu_value_picker/config.json
+++ b/hobu_value_picker/config.json
@@ -24,7 +24,7 @@
     	"port": 4223,
     	"uid": "xCt",
     	"callback": {
-      	"period": 60000
+      	"period": 120000
     	},
     	"on": {
       	"new": {