diff --git a/combo/src/main/java/info/nightscout/androidaps/plugins/pump/combo/ComboFragment.java b/combo/src/main/java/info/nightscout/androidaps/plugins/pump/combo/ComboFragment.java
index b0fc0d809c..85407b6b07 100644
--- a/combo/src/main/java/info/nightscout/androidaps/plugins/pump/combo/ComboFragment.java
+++ b/combo/src/main/java/info/nightscout/androidaps/plugins/pump/combo/ComboFragment.java
@@ -61,6 +61,7 @@ public class ComboFragment extends DaggerFragment {
     private TextView errorCountLabel;
     private TextView errorCountDots;
     private TextView errorCountValue;
+    private TextView serialNumber;
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
@@ -77,6 +78,7 @@ public class ComboFragment extends DaggerFragment {
         tempBasalText = view.findViewById(R.id.combo_temp_basal);
         bolusCount = view.findViewById(R.id.combo_bolus_count);
         tbrCount = view.findViewById(R.id.combo_tbr_count);
+        serialNumber = view.findViewById(R.id.serial_number);
 
         errorCountDelimiter = view.findViewById(R.id.combo_connection_error_delimiter);
         errorCountLayout = view.findViewById(R.id.combo_connection_error_layout);
@@ -255,6 +257,7 @@ public class ComboFragment extends DaggerFragment {
             // stats
             bolusCount.setText(String.valueOf(comboPlugin.getBolusesDelivered()));
             tbrCount.setText(String.valueOf(comboPlugin.getTbrsSet()));
+            serialNumber.setText(comboPlugin.serialNumber());
 
             updateErrorDisplay(false);
         } else {
diff --git a/combo/src/main/res/layout/combopump_fragment.xml b/combo/src/main/res/layout/combopump_fragment.xml
index 8225bb48e7..e5395759d8 100644
--- a/combo/src/main/res/layout/combopump_fragment.xml
+++ b/combo/src/main/res/layout/combopump_fragment.xml
@@ -510,6 +510,51 @@
 
             </LinearLayout>
 
+            <View
+                android:layout_width="fill_parent"
+                android:layout_height="2dip"
+                android:layout_marginBottom="5dp"
+                android:layout_marginLeft="20dp"
+                android:layout_marginRight="20dp"
+                android:layout_marginTop="5dp"
+                android:background="?android:attr/dividerHorizontal" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:focusable="true">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1.5"
+                    android:gravity="end"
+                    android:paddingRight="5dp"
+                    android:text="@string/serialnumber"
+                    android:textSize="14sp" />
+
+                <TextView
+                    android:layout_width="5dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="0"
+                    android:gravity="center_horizontal"
+                    android:paddingEnd="2dp"
+                    android:paddingStart="2dp"
+                    android:text=":"
+                    android:textSize="14sp" />
+
+                <TextView
+                    android:id="@+id/serial_number"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:gravity="start"
+                    android:paddingLeft="5dp"
+                    android:textSize="14sp" />
+
+            </LinearLayout>
+
             <View
                 android:layout_width="fill_parent"
                 android:layout_height="2dip"