diff --git a/libnymea-app-core/devices.cpp b/libnymea-app-core/devices.cpp
index 9100f159..e7056cc2 100644
--- a/libnymea-app-core/devices.cpp
+++ b/libnymea-app-core/devices.cpp
@@ -102,6 +102,11 @@ void Devices::addDevice(Device *device)
         if (idx < 0) return;
         emit dataChanged(index(idx), index(idx), {RoleSetupComplete});
     });
+    connect(device->states(), &States::dataChanged, this, [device, this]() {
+        int idx = m_devices.indexOf(device);
+        if (idx < 0) return;
+        emit dataChanged(index(idx), index(idx));
+    });
     emit countChanged();
 }
 
diff --git a/libnymea-app-core/devicesproxy.cpp b/libnymea-app-core/devicesproxy.cpp
index 3ae851ed..77dbdce1 100644
--- a/libnymea-app-core/devicesproxy.cpp
+++ b/libnymea-app-core/devicesproxy.cpp
@@ -30,19 +30,23 @@ DevicesProxy::DevicesProxy(QObject *parent) :
     connect(Engine::instance()->tagsManager()->tags(), &Tags::countChanged, this, &DevicesProxy::invalidateFilter);
 }
 
-Devices *DevicesProxy::devices() const
+QAbstractItemModel *DevicesProxy::devices() const
 {
     return m_devices;
 }
 
-void DevicesProxy::setDevices(Devices *devices)
+void DevicesProxy::setDevices(QAbstractItemModel *devices)
 {
     if (m_devices != devices) {
         m_devices = devices;
         setSourceModel(devices);
         setSortRole(Devices::RoleName);
         sort(0);
-        connect(devices, &Devices::countChanged, this, &DevicesProxy::countChanged);
+        connect(devices, SIGNAL(countChanged()), this, SIGNAL(countChanged()));
+        connect(devices, &QAbstractItemModel::dataChanged, this, [this]() {
+            invalidateFilter();
+            emit countChanged();
+        });
         emit devicesChanged();
         emit countChanged();
     }
@@ -93,9 +97,52 @@ void DevicesProxy::setHiddenInterfaces(const QStringList &hiddenInterfaces)
     }
 }
 
+bool DevicesProxy::filterBatteryCritical() const
+{
+    return m_filterBatteryCritical;
+}
+
+void DevicesProxy::setFilterBatteryCritical(bool filterBatteryCritical)
+{
+    if (m_filterBatteryCritical != filterBatteryCritical) {
+        m_filterBatteryCritical = filterBatteryCritical;
+        emit filterBatteryCriticalChanged();
+        invalidateFilter();
+        emit countChanged();
+    }
+}
+
+bool DevicesProxy::filterDisconnected() const
+{
+    return m_filterDisconnected;
+}
+
+void DevicesProxy::setFilterDisconnected(bool filterDisconnected)
+{
+    if (m_filterDisconnected != filterDisconnected) {
+        m_filterDisconnected = filterDisconnected;
+        emit filterDisconnectedChanged();
+        invalidateFilter();
+        emit countChanged();
+    }
+}
+
 Device *DevicesProxy::get(int index) const
 {
-    return m_devices->get(mapToSource(this->index(index, 0)).row());
+    return getInternal(mapToSource(this->index(index, 0)).row());
+}
+
+Device *DevicesProxy::getInternal(int source_index) const
+{
+    Devices* d = qobject_cast<Devices*>(m_devices);
+    if (d) {
+        return d->get(source_index);
+    }
+    DevicesProxy *dp = qobject_cast<DevicesProxy*>(m_devices);
+    if (dp) {
+        return dp->get(source_index);
+    }
+    return nullptr;
 }
 
 bool DevicesProxy::lessThan(const QModelIndex &left, const QModelIndex &right) const
@@ -108,17 +155,17 @@ bool DevicesProxy::lessThan(const QModelIndex &left, const QModelIndex &right) c
 
 bool DevicesProxy::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
 {
-    Device *device = m_devices->get(source_row);
+    Device *device = getInternal(source_row);
     if (!m_filterTagId.isEmpty()) {
         if (!Engine::instance()->tagsManager()->tags()->findDeviceTag(device->id().toString(), m_filterTagId)) {
             return false;
         }
     }
+    DeviceClass *deviceClass = Engine::instance()->deviceManager()->deviceClasses()->getDeviceClass(device->deviceClassId());
     if (!m_shownInterfaces.isEmpty()) {
-        QStringList interfaces = Engine::instance()->deviceManager()->deviceClasses()->getDeviceClass(m_devices->get(source_row)->deviceClassId())->interfaces();
         bool foundMatch = false;
         foreach (const QString &filterInterface, m_shownInterfaces) {
-            if (interfaces.contains(filterInterface)) {
+            if (deviceClass->interfaces().contains(filterInterface)) {
                 foundMatch = true;
                 continue;
             }
@@ -129,12 +176,23 @@ bool DevicesProxy::filterAcceptsRow(int source_row, const QModelIndex &source_pa
     }
 
     if (!m_hiddenInterfaces.isEmpty()) {
-        QStringList interfaces = Engine::instance()->deviceManager()->deviceClasses()->getDeviceClass(m_devices->get(source_row)->deviceClassId())->interfaces();
         foreach (const QString &filterInterface, m_hiddenInterfaces) {
-            if (interfaces.contains(filterInterface)) {
+            if (deviceClass->interfaces().contains(filterInterface)) {
                 return false;
             }
         }
     }
+
+    if (m_filterBatteryCritical) {
+        if (!deviceClass->interfaces().contains("battery") || device->stateValue(deviceClass->stateTypes()->findByName("batteryCritical")->id()).toBool() == false) {
+            return false;
+        }
+    }
+
+    if (m_filterDisconnected) {
+        if (!deviceClass->interfaces().contains("connectable") || device->stateValue(deviceClass->stateTypes()->findByName("connected")->id()).toBool() == true) {
+            return false;
+        }
+    }
     return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
 }
diff --git a/libnymea-app-core/devicesproxy.h b/libnymea-app-core/devicesproxy.h
index fcd41c5c..fd9beab2 100644
--- a/libnymea-app-core/devicesproxy.h
+++ b/libnymea-app-core/devicesproxy.h
@@ -33,16 +33,22 @@ class DevicesProxy : public QSortFilterProxyModel
 {
     Q_OBJECT
     Q_PROPERTY(int count READ rowCount NOTIFY countChanged)
-    Q_PROPERTY(Devices *devices READ devices WRITE setDevices NOTIFY devicesChanged)
+    Q_PROPERTY(QAbstractItemModel *devices READ devices WRITE setDevices NOTIFY devicesChanged)
     Q_PROPERTY(QString filterTagId READ filterTagId WRITE setFilterTagId NOTIFY filterTagIdChanged)
     Q_PROPERTY(QStringList shownInterfaces READ shownInterfaces WRITE setShownInterfaces NOTIFY shownInterfacesChanged)
     Q_PROPERTY(QStringList hiddenInterfaces READ hiddenInterfaces WRITE setHiddenInterfaces NOTIFY hiddenInterfacesChanged)
 
+    // Setting this to true will imply filtering for "battery" interface
+    Q_PROPERTY(bool filterBatteryCritical READ filterBatteryCritical WRITE setFilterBatteryCritical NOTIFY filterBatteryCriticalChanged)
+
+    // Setting this to true will imply filtering for "connectable" interface
+    Q_PROPERTY(bool filterDisconnected READ filterDisconnected WRITE setFilterDisconnected NOTIFY filterDisconnectedChanged)
+
 public:
     explicit DevicesProxy(QObject *parent = 0);
 
-    Devices *devices() const;
-    void setDevices(Devices *devices);
+    QAbstractItemModel *devices() const;
+    void setDevices(QAbstractItemModel *devices);
 
     QString filterTagId() const;
     void setFilterTagId(const QString &filterTag);
@@ -53,6 +59,12 @@ public:
     QStringList hiddenInterfaces() const;
     void setHiddenInterfaces(const QStringList &hiddenInterfaces);
 
+    bool filterBatteryCritical() const;
+    void setFilterBatteryCritical(bool filterBatteryCritical);
+
+    bool filterDisconnected() const;
+    void setFilterDisconnected(bool filterDisconnected);
+
     Q_INVOKABLE Device *get(int index) const;
 
 signals:
@@ -60,14 +72,21 @@ signals:
     void filterTagIdChanged();
     void shownInterfacesChanged();
     void hiddenInterfacesChanged();
+    void filterBatteryCriticalChanged();
+    void filterDisconnectedChanged();
     void countChanged();
 
 private:
-    Devices *m_devices = nullptr;
+    Device *getInternal(int source_index) const;
+
+    QAbstractItemModel *m_devices = nullptr;
     QString m_filterTagId;
     QStringList m_shownInterfaces;
     QStringList m_hiddenInterfaces;
 
+    bool m_filterBatteryCritical = false;
+    bool m_filterDisconnected = false;
+
 protected:
     bool lessThan(const QModelIndex &left, const QModelIndex &right) const Q_DECL_OVERRIDE;
     bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
diff --git a/libnymea-app-core/rulemanager.cpp b/libnymea-app-core/rulemanager.cpp
index e6635fcc..33cbe50c 100644
--- a/libnymea-app-core/rulemanager.cpp
+++ b/libnymea-app-core/rulemanager.cpp
@@ -222,7 +222,7 @@ void RuleManager::parseEventDescriptors(const QVariantList &eventDescriptorList,
             paramDescriptor->setOperatorType((ParamDescriptor::ValueOperator)operatorEnum.keyToValue(paramDescriptorVariant.toMap().value("operator").toString().toLocal8Bit()));
             eventDescriptor->paramDescriptors()->addParamDescriptor(paramDescriptor);
         }
-        qDebug() << "Adding eventdescriptor" << eventDescriptor->deviceId() << eventDescriptor->eventTypeId();
+//        qDebug() << "Adding eventdescriptor" << eventDescriptor->deviceId() << eventDescriptor->eventTypeId();
         rule->eventDescriptors()->addEventDescriptor(eventDescriptor);
     }
 }
diff --git a/libnymea-app-core/tagsmanager.cpp b/libnymea-app-core/tagsmanager.cpp
index d7b34583..e859f824 100644
--- a/libnymea-app-core/tagsmanager.cpp
+++ b/libnymea-app-core/tagsmanager.cpp
@@ -145,6 +145,6 @@ void TagsManager::addTagInternal(const QVariantMap &tagMap)
         tag->deleteLater();
         return;
     }
-    qDebug() << "adding tag" << tag->tagId() << tag->value();
+//    qDebug() << "adding tag" << tag->tagId() << tag->value();
     m_tags->addTag(tag);
 }
diff --git a/libnymea-common/types/states.cpp b/libnymea-common/types/states.cpp
index 4bc09872..b255ca9f 100644
--- a/libnymea-common/types/states.cpp
+++ b/libnymea-common/types/states.cpp
@@ -79,6 +79,11 @@ void States::addState(State *state)
     beginInsertRows(QModelIndex(), m_states.count(), m_states.count());
     //qDebug() << "States: loaded state" << state->stateTypeId();
     m_states.append(state);
+    connect(state, &State::valueChanged, this, [state, this]() {
+        int idx = m_states.indexOf(state);
+        if (idx < 0) return;
+        emit dataChanged(index(idx), index(idx), {ValueRole});
+    });
     endInsertRows();
 }
 
diff --git a/nymea-app/ui/EditDevicesPage.qml b/nymea-app/ui/EditDevicesPage.qml
index d5a6efa9..5b464a49 100644
--- a/nymea-app/ui/EditDevicesPage.qml
+++ b/nymea-app/ui/EditDevicesPage.qml
@@ -49,8 +49,7 @@ Page {
         anchors.fill: parent
         model: Engine.deviceManager.devices
         delegate: ThingDelegate {
-            interfaces:model.interfaces
-            name: model.name
+            device: Engine.deviceManager.devices.get(index)
             canDelete: true
             onClicked: {
                 pageStack.push(Qt.resolvedUrl("devicepages/ConfigureThingPage.qml"), {device: Engine.deviceManager.devices.get(index)})
diff --git a/nymea-app/ui/Nymea.qml b/nymea-app/ui/Nymea.qml
index 553a6225..f54c3e9e 100644
--- a/nymea-app/ui/Nymea.qml
+++ b/nymea-app/ui/Nymea.qml
@@ -160,6 +160,8 @@ ApplicationWindow {
             return qsTr("Temperature");
         case "humiditysensor":
             return qsTr("Humidity");
+        case "pressuresensor":
+            return qsTr("Pressure");
         case "inputtrigger":
             return qsTr("Incoming Events");
         case "outputtrigger":
@@ -208,6 +210,8 @@ ApplicationWindow {
             return Qt.resolvedUrl("images/sensors/light.svg")
         case "conductivitysensor":
             return Qt.resolvedUrl("images/sensors/conductivity.svg")
+        case "pressuresensor":
+            return Qt.resolvedUrl("images/sensors/pressure.svg")
         case "media":
         case "mediacontroller":
             return Qt.resolvedUrl("images/mediaplayer-app-symbolic.svg")
@@ -265,8 +269,9 @@ ApplicationWindow {
         case "lightsensor":
             return "orange";
         case "conductivitysensor":
-            return "green"
-
+            return "green";
+        case "pressuresensor":
+            return "grey";
         }
         return "grey";
     }
diff --git a/nymea-app/ui/components/MeaListItemDelegate.qml b/nymea-app/ui/components/MeaListItemDelegate.qml
index 7a90bf64..4f055f65 100644
--- a/nymea-app/ui/components/MeaListItemDelegate.qml
+++ b/nymea-app/ui/components/MeaListItemDelegate.qml
@@ -13,6 +13,9 @@ SwipeDelegate {
     property int iconSize: app.iconSize
     property color iconColor: app.guhAccent
 
+    property bool batteryCritical: false
+    property bool disconnected: false
+
     signal deleteClicked()
 
     contentItem: RowLayout {
@@ -51,6 +54,21 @@ SwipeDelegate {
             }
         }
 
+        ColorIcon {
+            Layout.preferredHeight: app.iconSize * .5
+            Layout.preferredWidth: height
+            name: "../images/battery/battery-010.svg"
+            visible: root.batteryCritical
+        }
+
+        ColorIcon {
+            Layout.preferredHeight: app.iconSize * .5
+            Layout.preferredWidth: height
+            name: "../images/dialog-warning-symbolic.svg"
+            visible: root.disconnected
+            color: "red"
+        }
+
         ColorIcon {
             Layout.preferredHeight: app.iconSize * .6
             Layout.preferredWidth: height
diff --git a/nymea-app/ui/delegates/ThingDelegate.qml b/nymea-app/ui/delegates/ThingDelegate.qml
index 8d88d359..c5b4d904 100644
--- a/nymea-app/ui/delegates/ThingDelegate.qml
+++ b/nymea-app/ui/delegates/ThingDelegate.qml
@@ -2,14 +2,19 @@ import QtQuick 2.0
 import QtQuick.Controls 2.2
 import QtQuick.Layouts 1.2
 import "../components"
+import Nymea 1.0
 
 MeaListItemDelegate {
     id: root
     width: parent.width
-    iconName: app.interfacesToIcon(root.interfaces)
-    text: root.name
+    iconName: deviceClass ? app.interfacesToIcon(deviceClass.interfaces) : ""
+    text: device.name
     progressive: true
+    batteryCritical: deviceClass && deviceClass.interfaces.indexOf("battery") >= 0 ? device.stateValue(deviceClass.stateTypes.findByName("batteryCritical").id) === true : false
+    disconnected: deviceClass && deviceClass.interfaces.indexOf("connectable") >= 0 ? device.stateValue(deviceClass.stateTypes.findByName("connected").id) === false : false
+
+    property var device: null
+
+    readonly property var deviceClass: device ? Engine.deviceManager.deviceClasses.getDeviceClass(device.deviceClassId) : null
 
-    property var interfaces: []
-    property string name: ""
 }
diff --git a/nymea-app/ui/devicelistpages/GenericDeviceListPage.qml b/nymea-app/ui/devicelistpages/GenericDeviceListPage.qml
index 4274b3c4..4d2756a0 100644
--- a/nymea-app/ui/devicelistpages/GenericDeviceListPage.qml
+++ b/nymea-app/ui/devicelistpages/GenericDeviceListPage.qml
@@ -51,8 +51,7 @@ Page {
         }
         delegate: ThingDelegate {
             width: parent.width
-            name: model.name
-            interfaces: Engine.deviceManager.deviceClasses.getDeviceClass(model.deviceClassId).interfaces
+            device: Engine.deviceManager.devices.getDevice(model.id);
             onClicked: {
                 enterPage(index, false)
             }
diff --git a/nymea-app/ui/mainviews/DevicesPageDelegate.qml b/nymea-app/ui/mainviews/DevicesPageDelegate.qml
index 321bdee0..8dd61738 100644
--- a/nymea-app/ui/mainviews/DevicesPageDelegate.qml
+++ b/nymea-app/ui/mainviews/DevicesPageDelegate.qml
@@ -62,6 +62,35 @@ Item {
         }
     }
 
+    Row {
+        id: quickAlertPane
+        anchors { top: parent.top; right: parent.right; margins: app.margins }
+        DevicesProxy {
+            id: devicesSubProxyConnectables
+            devices: devicesProxy
+            filterDisconnected: true
+        }
+        ColorIcon {
+            height: app.iconSize / 2
+            width: height
+            name: "../images/dialog-warning-symbolic.svg"
+            color: "red"
+            visible: devicesSubProxyConnectables.count > 0
+        }
+        DevicesProxy {
+            id: devicesSubProxyBattery
+            devices: devicesProxy
+            filterBatteryCritical: true
+        }
+        ColorIcon {
+            height: app.iconSize / 2
+            width: height
+            name: "../images/battery/battery-010.svg"
+            visible: devicesSubProxyBattery.count > 0
+        }
+    }
+
+
     Item {
         id: inlineControlPane
         anchors { left: parent.left; bottom: parent.bottom; right: parent.right; margins: app.margins / 2 }
diff --git a/nymea-app/ui/mainviews/FavoritesView.qml b/nymea-app/ui/mainviews/FavoritesView.qml
index 9436c80f..02982c2c 100644
--- a/nymea-app/ui/mainviews/FavoritesView.qml
+++ b/nymea-app/ui/mainviews/FavoritesView.qml
@@ -138,6 +138,26 @@ Item {
                 }
             }
 
+            Row {
+                id: quickAlertPane
+                anchors { top: parent.top; right: parent.right; margins: app.margins }
+                ColorIcon {
+                    height: app.iconSize / 2
+                    width: height
+                    name: "../images/dialog-warning-symbolic.svg"
+                    color: "red"
+                    property var connectedState: delegateRoot.deviceClass.interfaces.indexOf("connectable") >= 0 ? delegateRoot.device.states.getState(delegateRoot.deviceClass.stateTypes.findByName("connected").id) : null
+                    visible: connectedState !== null && connectedState.value === false
+                }
+                ColorIcon {
+                    height: app.iconSize / 2
+                    width: height
+                    name: "../images/battery/battery-010.svg"
+                    property var batteryCriticalState: delegateRoot.deviceClass.interfaces.indexOf("battery") >= 0 ? delegateRoot.device.states.getState(delegateRoot.deviceClass.stateTypes.findByName("batteryCritical").id) : null
+                    visible: batteryCriticalState !== null && batteryCriticalState.value === true
+                }
+            }
+
             MouseArea {
                 anchors.fill: parent
                 onClicked: {