diff --git a/libnymea-app/thingmanager.cpp b/libnymea-app/thingmanager.cpp
index 3fff48c8..a63d33b3 100644
--- a/libnymea-app/thingmanager.cpp
+++ b/libnymea-app/thingmanager.cpp
@@ -832,6 +832,7 @@ ParamType *ThingManager::unpackParamType(const QVariantMap &paramTypeMap, QObjec
     paramType->setDefaultValue(paramTypeMap.value("defaultValue"));
     paramType->setMinValue(paramTypeMap.value("minValue"));
     paramType->setMaxValue(paramTypeMap.value("maxValue"));
+    paramType->setStepSize(paramTypeMap.value("stepSize").toDouble());
     paramType->setAllowedValues(paramTypeMap.value("allowedValues").toList());
     paramType->setInputType(stringToInputType(paramTypeMap.value("inputType").toString()));
     paramType->setReadOnly(paramTypeMap.value("readOnly").toBool());
@@ -858,6 +859,7 @@ StateType *ThingManager::unpackStateType(const QVariantMap &stateTypeMap, QObjec
     stateType->setType(stateTypeMap.value("type").toString());
     stateType->setMinValue(stateTypeMap.value("minValue"));
     stateType->setMaxValue(stateTypeMap.value("maxValue"));
+    stateType->setStepSize(stateTypeMap.value("stepSize").toDouble());
     stateType->setUnit(stringToUnit(stateTypeMap.value("unit").toString()));
 
     QMetaEnum metaEnum = QMetaEnum::fromType<Types::IOType>();
diff --git a/libnymea-app/types/paramtype.cpp b/libnymea-app/types/paramtype.cpp
index 787d903e..b1a68c99 100644
--- a/libnymea-app/types/paramtype.cpp
+++ b/libnymea-app/types/paramtype.cpp
@@ -24,20 +24,19 @@
 
 #include "paramtype.h"
 
-ParamType::ParamType(QObject *parent) :
-    QObject(parent)
+ParamType::ParamType(QObject *parent)
+    : QObject(parent)
 {
     m_readOnly = false;
 }
 
-ParamType::ParamType(const QString &name, const QVariant::Type type, const QVariant &defaultValue, QObject *parent) :
-    QObject(parent),
-    m_name(name),
-    m_type(QVariant::typeToName(type)),
-    m_defaultValue(defaultValue),
-    m_readOnly(false)
-{
-}
+ParamType::ParamType(const QString &name, const QVariant::Type type, const QVariant &defaultValue, QObject *parent)
+    : QObject(parent)
+    , m_name(name)
+    , m_type(QVariant::typeToName(type))
+    , m_defaultValue(defaultValue)
+    , m_readOnly(false)
+{}
 
 QUuid ParamType::id() const
 {
@@ -119,6 +118,16 @@ void ParamType::setMaxValue(const QVariant &maxValue)
     m_maxValue = maxValue;
 }
 
+double ParamType::stepSize() const
+{
+    return m_stepSize;
+}
+
+void ParamType::setStepSize(double stepSize)
+{
+    m_stepSize = stepSize;
+}
+
 Types::InputType ParamType::inputType() const
 {
     return m_inputType;
diff --git a/libnymea-app/types/paramtype.h b/libnymea-app/types/paramtype.h
index 1fee5f40..c4df20c6 100644
--- a/libnymea-app/types/paramtype.h
+++ b/libnymea-app/types/paramtype.h
@@ -25,10 +25,10 @@
 #ifndef PARAMTYPE_H
 #define PARAMTYPE_H
 
-#include <QVariant>
-#include <QObject>
 #include <QDebug>
+#include <QObject>
 #include <QUuid>
+#include <QVariant>
 
 #include "types.h"
 
@@ -43,6 +43,7 @@ class ParamType : public QObject
     Q_PROPERTY(QVariant defaultValue READ defaultValue CONSTANT)
     Q_PROPERTY(QVariant minValue READ minValue CONSTANT)
     Q_PROPERTY(QVariant maxValue READ maxValue CONSTANT)
+    Q_PROPERTY(double stepSize READ stepSize CONSTANT)
     Q_PROPERTY(Types::InputType inputType READ inputType CONSTANT)
     Q_PROPERTY(Types::Unit unit READ unit CONSTANT)
     Q_PROPERTY(QVariantList allowedValues READ allowedValues CONSTANT)
@@ -76,6 +77,9 @@ public:
     QVariant maxValue() const;
     void setMaxValue(const QVariant &maxValue);
 
+    double stepSize() const;
+    void setStepSize(double stepSize);
+
     Types::InputType inputType() const;
     void setInputType(const Types::InputType &inputType);
 
@@ -97,6 +101,7 @@ private:
     QVariant m_defaultValue;
     QVariant m_minValue;
     QVariant m_maxValue;
+    double m_stepSize = 0;
     Types::InputType m_inputType;
     Types::Unit m_unit;
     QVariantList m_allowedValues;
diff --git a/libnymea-app/types/statetype.cpp b/libnymea-app/types/statetype.cpp
index 338c2c4b..5375acc9 100644
--- a/libnymea-app/types/statetype.cpp
+++ b/libnymea-app/types/statetype.cpp
@@ -24,10 +24,9 @@
 
 #include "statetype.h"
 
-StateType::StateType(QObject *parent) :
-    QObject(parent)
-{
-}
+StateType::StateType(QObject *parent)
+    : QObject(parent)
+{}
 
 QUuid StateType::id() const
 {
@@ -147,6 +146,16 @@ void StateType::setMaxValue(const QVariant &maxValue)
     m_maxValue = maxValue;
 }
 
+double StateType::stepSize() const
+{
+    return m_stepSize;
+}
+
+void StateType::setStepSize(double stepSize)
+{
+    m_stepSize = stepSize;
+}
+
 Types::IOType StateType::ioType() const
 {
     return m_ioType;
diff --git a/libnymea-app/types/statetype.h b/libnymea-app/types/statetype.h
index 54fcc8fe..a97ef768 100644
--- a/libnymea-app/types/statetype.h
+++ b/libnymea-app/types/statetype.h
@@ -25,9 +25,9 @@
 #ifndef STATETYPE_H
 #define STATETYPE_H
 
-#include <QVariant>
 #include <QObject>
 #include <QUuid>
+#include <QVariant>
 
 #include "types.h"
 
@@ -47,6 +47,7 @@ class StateType : public QObject
     Q_PROPERTY(Types::IOType ioType READ ioType CONSTANT)
     Q_PROPERTY(QVariant minValue READ minValue CONSTANT)
     Q_PROPERTY(QVariant maxValue READ maxValue CONSTANT)
+    Q_PROPERTY(double stepSize READ stepSize CONSTANT)
 
 public:
     StateType(QObject *parent = nullptr);
@@ -87,6 +88,9 @@ public:
     QVariant maxValue() const;
     void setMaxValue(const QVariant &maxValue);
 
+    double stepSize() const;
+    void setStepSize(double stepSize);
+
 private:
     QUuid m_id;
     QString m_name;
@@ -100,6 +104,7 @@ private:
     Types::IOType m_ioType = Types::IOTypeNone;
     QVariant m_minValue;
     QVariant m_maxValue;
+    double m_stepSize = 0;
 };
 
 #endif // STATETYPE_H
diff --git a/nymea-app/ui/components/MediaPlayer.qml b/nymea-app/ui/components/MediaPlayer.qml
index dab53d0e..bf7d7810 100644
--- a/nymea-app/ui/components/MediaPlayer.qml
+++ b/nymea-app/ui/components/MediaPlayer.qml
@@ -73,8 +73,8 @@ Item {
 
     Connections {
         target: engine.thingManager
-        onExecuteActionReply: {
-            if (commandId == d.pendingCallId) {
+        onExecuteActionReply: (commandId, thingError, displayMessage) => {
+            if (commandId === d.pendingCallId) {
                 if (thingError !== Thing.ThingErrorNoError) {
                     var errorDialog = Qt.createComponent(Qt.resolvedUrl("../components/ErrorDialog.qml"));
                     var dialogParams = {}
diff --git a/nymea-app/ui/components/StateDial.qml b/nymea-app/ui/components/StateDial.qml
index 3f69ca3a..2225ee1e 100644
--- a/nymea-app/ui/components/StateDial.qml
+++ b/nymea-app/ui/components/StateDial.qml
@@ -38,7 +38,8 @@ Item {
 
     property color color: Style.accentColor
     property bool on: true
-    property int precision: 1
+    property real precision: 1
+    property real linePrecision: 1
 
     readonly property State progressState: thing ? thing.states.getState(stateType.id) : null
     readonly property State powerState: thing ? thing.stateByName("power") : null
@@ -46,8 +47,10 @@ Item {
     property int startAngle: 135
     property int maxAngle: 270
     readonly property int steps: canvas.roundToPrecision(root.progressState.maxValue - root.progressState.minValue) / root.precision + 1
+    readonly property int lineSteps: canvas.roundToPrecision(root.progressState.maxValue - root.progressState.minValue, root.linePrecision) / root.linePrecision + 1
     readonly property double stepSize: (root.progressState.maxValue - root.progressState.minValue) / steps
     readonly property double anglePerStep: maxAngle / steps
+    readonly property double lineAnglePerStep: maxAngle / lineSteps
 
 
     ActionQueue {
@@ -81,8 +84,9 @@ Item {
         Behavior on effectColor { ColorAnimation { duration: Style.animationDuration } }
         onEffectColorChanged: requestPaint()
 
-        function roundToPrecision(value) {
-            var tmp = Math.round(value / root.precision) * root.precision;
+        function roundToPrecision(value, precision) {
+            var effectivePrecision = precision === undefined ? root.precision : precision;
+            var tmp = Math.round(value / effectivePrecision) * effectivePrecision;
             return tmp;
         }
 
@@ -94,19 +98,20 @@ Item {
 
             // Step lines
             var currentValue = actionQueue.pendingValue || root.progressState.value
-            var currentStep;
+            var currentStepValue;
             if (root.progressState) {
-                currentStep = roundToPrecision(currentValue - root.progressState.minValue) / root.precision
+                currentStepValue = roundToPrecision(currentValue - root.progressState.minValue, root.linePrecision)
             }
 
-//            print("* current step", currentStep, root.steps, currentValue)
+//            print("* current step", currentStepValue, root.lineSteps, currentValue)
 
-            for(var step = 0; step < steps; step += root.precision) {
-                var angle = step * anglePerStep + startAngle;
+            for (var step = 0; step < lineSteps; step += 1) {
+                var stepValue = step * root.linePrecision
+                var angle = step * lineAnglePerStep + startAngle;
                 var innerRadius = canvas.width * 0.4
                 var outerRadius = canvas.width * 0.5
 
-                if (step <= currentStep) {
+                if (stepValue <= currentStepValue) {
                     ctx.strokeStyle = canvas.effectColor
                     innerRadius = canvas.width * 0.38
                     ctx.lineWidth = 4;
diff --git a/nymea-app/ui/components/ThingInfoPane.qml b/nymea-app/ui/components/ThingInfoPane.qml
index 74710499..094a674c 100644
--- a/nymea-app/ui/components/ThingInfoPane.qml
+++ b/nymea-app/ui/components/ThingInfoPane.qml
@@ -106,7 +106,7 @@ InfoPaneBase {
             }
             Connections {
                 target: engine.thingManager
-                onExecuteActionReply: {
+                onExecuteActionReply: (commandId, thingError, displayMessage) => {
                     if (commandId === childLockIcon.pendingAction) {
                         childLockIcon.pendingAction = -1
                     }
diff --git a/nymea-app/ui/devicepages/EvChargerThingPage.qml b/nymea-app/ui/devicepages/EvChargerThingPage.qml
index 88795c24..a6a7f5b0 100644
--- a/nymea-app/ui/devicepages/EvChargerThingPage.qml
+++ b/nymea-app/ui/devicepages/EvChargerThingPage.qml
@@ -27,8 +27,8 @@ import QtQuick.Controls
 import QtQuick.Layouts
 import Nymea
 
-import "../components"
-import "../utils"
+import "qrc:/ui/components"
+import "qrc:/ui/utils"
 
 ThingPageBase {
     id: root
@@ -36,6 +36,7 @@ ThingPageBase {
     readonly property State powerState: thing.stateByName("power")
     readonly property State maxChargingCurrentState: thing.stateByName("maxChargingCurrent")
     readonly property StateType maxChargingCurrentStateType: thing.thingClass.stateTypes.findByName("maxChargingCurrent")
+    readonly property real precision: maxChargingCurrentStateType.stepSize !== 0 ? maxChargingCurrentStateType.stepSize : 0.1
     readonly property State currentPowerState: thing.stateByName("currentPower")
     readonly property State pluggedInState: thing.stateByName("pluggedIn")
 
@@ -94,6 +95,7 @@ ThingPageBase {
                 thing: root.thing
                 stateName: "maxChargingCurrent"
                 color: app.interfaceToColor("evcharger")
+                precision: root.precision
                 on: (actionQueue.pendingValue || powerState.value) === true
             }
         }
diff --git a/nymea-app/ui/devicepages/FingerprintReaderDevicePage.qml b/nymea-app/ui/devicepages/FingerprintReaderDevicePage.qml
index fa689cd5..608d9b7c 100644
--- a/nymea-app/ui/devicepages/FingerprintReaderDevicePage.qml
+++ b/nymea-app/ui/devicepages/FingerprintReaderDevicePage.qml
@@ -184,7 +184,7 @@ ThingPageBase {
 
             Connections {
                 target: engine.thingManager
-                onExecuteActionReply: {
+                onExecuteActionReply: (commandId, thingError, displayMessage) => {
                     addUserPage.error = thingError !== Thing.ThingErrorNoError
                     var masks =[]
                     masks.push({x: 0, y: 0, width: 1, height: 1});
diff --git a/nymea-app/ui/devicepages/GenericThingPage.qml b/nymea-app/ui/devicepages/GenericThingPage.qml
index a2a01106..f18a23ad 100644
--- a/nymea-app/ui/devicepages/GenericThingPage.qml
+++ b/nymea-app/ui/devicepages/GenericThingPage.qml
@@ -359,7 +359,7 @@ ThingPageBase {
             }
             Connections {
                 target: engine.thingManager
-                onExecuteActionReply: {
+                onExecuteActionReply: (commandId, thingError, displayMessage) => {
                     if (stateDelegate.pendingActionId === commandId) {
                         stateDelegate.pendingActionId = -1
                         if (stateDelegate.valueCacheDirty) {
@@ -384,7 +384,7 @@ ThingPageBase {
 
             Connections {
                 target: engine.thingManager
-                onExecuteActionReply: {
+                onExecuteActionReply: (commandId, thingError, displayMessage) => {
                     if (commandId === actionDelegate.pendingActionId) {
                         pendingTimer.start();
                         actionDelegate.lastSuccess = thingError === Thing.ThingErrorNoError
diff --git a/nymea-app/ui/devicepages/NotificationsThingPage.qml b/nymea-app/ui/devicepages/NotificationsThingPage.qml
index c948c648..cb787842 100644
--- a/nymea-app/ui/devicepages/NotificationsThingPage.qml
+++ b/nymea-app/ui/devicepages/NotificationsThingPage.qml
@@ -40,8 +40,8 @@ ThingPageBase {
 
     Connections {
         target: engine.thingManager
-        onExecuteActionReply: {
-            if (commandId == d.pendingAction) {
+        onExecuteActionReply: (commandId, thingError, displayMessage) => {
+            if (commandId === d.pendingAction) {
                 d.pendingAction = -1
             }
         }
diff --git a/nymea-app/ui/experiences/heating/Main.qml b/nymea-app/ui/experiences/heating/Main.qml
index 3e985d28..3893e5d5 100644
--- a/nymea-app/ui/experiences/heating/Main.qml
+++ b/nymea-app/ui/experiences/heating/Main.qml
@@ -113,7 +113,7 @@ Item {
 
     Connections {
         target: engine.thingManager
-        onExecuteActionReply: {
+        onExecuteActionReply: (commandId, thingError, displayMessage) => {
             print("executeActionReply:", commandId)
             if (commandId === d.pendingCallId) {
                 d.pendingCallId = -1;
diff --git a/nymea-app/ui/utils/ActionQueue.qml b/nymea-app/ui/utils/ActionQueue.qml
index 7a4d0d22..c2eaba85 100644
--- a/nymea-app/ui/utils/ActionQueue.qml
+++ b/nymea-app/ui/utils/ActionQueue.qml
@@ -68,8 +68,8 @@ Item {
 
     Connections {
         target: root.thing
-        onExecuteActionReply: {
-            if (d.pendingCommand == commandId) {
+        onExecuteActionReply: (commandId, thingError, displayMessage) => {
+            if (d.pendingCommand === commandId) {
 //                print("command finished")
                 d.pendingCommand = -1;
                 if (d.queuedValue != null) {