diff --git a/ksgrd2/SensorDaemonInterface.cpp b/ksgrd2/SensorDaemonInterface.cpp
index 87bd493..b757c51 100644
--- a/ksgrd2/SensorDaemonInterface.cpp
+++ b/ksgrd2/SensorDaemonInterface.cpp
@@ -49,6 +49,8 @@ void SensorDaemonInterface::requestMetaData(const QStringList& sensorIds)
     connect(watcher, &QDBusPendingCallWatcher::finished, watcher, [=](QDBusPendingCallWatcher *self) {
         self->deleteLater();
 
+        qDebug() << "fetched!";
+
         const QDBusPendingReply<SensorInfoMap> reply = *self;
         if (reply.isError()) {
             return;
@@ -56,6 +58,7 @@ void SensorDaemonInterface::requestMetaData(const QStringList& sensorIds)
 
         const auto infos = reply.value();
         for (auto itr = infos.begin(); itr != infos.end(); ++itr) {
+            qDebug() << itr.key();
             Q_EMIT metaDataChanged(itr.key(), itr.value());
         }
     });
diff --git a/ksgrd2/SensorDataModel.cpp b/ksgrd2/SensorDataModel.cpp
index 7abf564..43b9e2a 100644
--- a/ksgrd2/SensorDataModel.cpp
+++ b/ksgrd2/SensorDataModel.cpp
@@ -102,6 +102,7 @@ QVariant SensorDataModel::data(const QModelIndex &index, int role) const
     case Minimum:
         return info.min;
     case Maximum:
+        qDebug() << "query data max" << info.max;
         return info.max;
     case Type:
         return info.variantType;
@@ -145,6 +146,7 @@ QVariant SensorDataModel::headerData(int section, Qt::Orientation orientation, i
     case Minimum:
         return info.min;
     case Maximum:
+        qDebug() << "query header max" << info.max;
         return info.max;
     case Type:
         return info.variantType;
@@ -194,6 +196,7 @@ qreal SensorDataModel::maximum() const
     auto result = std::max_element(d->sensorInfos.cbegin(), d->sensorInfos.cend(), [](const SensorInfo &first, const SensorInfo &second) {
         return first.max < second.max;
     });
+    qDebug() << "************* querying max" << (*result).max;
     return (*result).max;
 }
 
@@ -252,7 +255,6 @@ void SensorDataModel::Private::addSensor(const QString &id)
     }
 
     qCDebug(LIBKSYSGUARD_KSGRD2) << "Add Sensor" << id;
-
     sensors.append(id);
     SensorDaemonInterface::instance()->requestMetaData(id);
 }
@@ -295,6 +297,7 @@ void SensorDataModel::onMetaDataChanged(const QString &sensorId, const SensorInf
     // Simple case: Just an update for a sensor's metadata
     if (d->sensorInfos.contains(sensorId)) {
         d->sensorInfos[sensorId] = info;
+        qDebug() << "DATA CHANGED" << info.max;
         Q_EMIT dataChanged(index(0, column), index(0, column), {Qt::DisplayRole, Name, ShortName, Description, Unit, Minimum, Maximum, Type, FormattedValue});
         return;
     }
@@ -307,6 +310,8 @@ void SensorDataModel::onMetaDataChanged(const QString &sensorId, const SensorInf
 
     SensorDaemonInterface::instance()->subscribe(sensorId);
     SensorDaemonInterface::instance()->requestValue(sensorId);
+
+    emit sensorMetaDataChanged();
 }
 
 void SensorDataModel::onValueChanged(const QString &sensorId, const QVariant &value)
@@ -333,10 +338,17 @@ void SensorDataModel::Private::sensorsChanged()
     const auto addedSensors = newSet - currentSet;
     const auto removedSensors = currentSet - newSet;
 
+    qDebug() << "appending " << addedSensors.values();
     sensors.append(addedSensors.values());
+    qDebug() << "Request metadata" << addedSensors;
     SensorDaemonInterface::instance()->requestMetaData(addedSensors.values());
 
+    bool itemsRemoved = false;
     for (auto sensor : removedSensors) {
         removeSensor(sensor);
+        itemsRemoved = true;
+    }
+    if (itemsRemoved) {
+        emit q->sensorMetaDataChanged();
     }
 }
diff --git a/ksgrd2/SensorDataModel.h b/ksgrd2/SensorDataModel.h
index 78653e8..8d9cf6a 100644
--- a/ksgrd2/SensorDataModel.h
+++ b/ksgrd2/SensorDataModel.h
@@ -23,9 +23,9 @@ class Q_DECL_EXPORT SensorDataModel : public QAbstractTableModel, public QQmlPar
 
     Q_PROPERTY(QStringList sensors READ sensors WRITE setSensors NOTIFY sensorsChanged)
     // The minimum value of all sensors' minimum property.
-    Q_PROPERTY(qreal minimum READ minimum NOTIFY sensorsChanged)
+    Q_PROPERTY(qreal minimum READ minimum NOTIFY sensorMetaDataChanged)
     // The maximum value of all sensors' maximum property.
-    Q_PROPERTY(qreal maximum READ maximum NOTIFY sensorsChanged)
+    Q_PROPERTY(qreal maximum READ maximum NOTIFY sensorMetaDataChanged)
 
 public:
     enum AdditionalRoles {
@@ -56,6 +56,7 @@ public:
     QStringList sensors() const;
     void setSensors(const QStringList &sensorIds);
     Q_SIGNAL void sensorsChanged() const;
+    Q_SIGNAL void sensorMetaDataChanged();
 
     qreal minimum() const;
     qreal maximum() const;