diff --git a/HalCheck/HalControle.Designer.cs b/HalCheck/HalControle.Designer.cs
index 5ce198b..44bbcf4 100644
--- a/HalCheck/HalControle.Designer.cs
+++ b/HalCheck/HalControle.Designer.cs
@@ -127,6 +127,7 @@ namespace HalCheck
             this.lbSensors = new System.Windows.Forms.ListBox();
             this.panelPlot = new System.Windows.Forms.Panel();
             this.tpHal = new System.Windows.Forms.TabPage();
+            this.lblLastCheckTimeStamp = new System.Windows.Forms.Label();
             this.pnlESDwarning = new System.Windows.Forms.Panel();
             this.pcESDwarning = new System.Windows.Forms.PictureBox();
             this.pcHal = new System.Windows.Forms.PictureBox();
@@ -584,7 +585,7 @@ namespace HalCheck
             this.tabControl.Controls.Add(this.tpGeneralDataCheck);
             this.tabControl.Controls.Add(this.tpDataView);
             this.tabControl.Controls.Add(this.tpHal);
-            this.tabControl.Location = new System.Drawing.Point(9, 10);
+            this.tabControl.Location = new System.Drawing.Point(11, 11);
             this.tabControl.Margin = new System.Windows.Forms.Padding(2);
             this.tabControl.Name = "tabControl";
             this.tabControl.SelectedIndex = 0;
@@ -1200,12 +1201,22 @@ namespace HalCheck
             this.label3.TabIndex = 33;
             this.label3.Text = "Nieuw aangesloten kamers op CMS2 verwijderen uit txt bestand: Z:\\projects\\2020\\P2" +
     "01339\\sub1\\4. Software\\1. Feanor\\excluded_chambers.txt";
+            // 
+            // lblLastCheckTimeStamp
+            // 
+            this.lblLastCheckTimeStamp.AutoSize = true;
+            this.lblLastCheckTimeStamp.Location = new System.Drawing.Point(1420, 1058);
+            this.lblLastCheckTimeStamp.Name = "lblLastCheckTimeStamp";
+            this.lblLastCheckTimeStamp.Size = new System.Drawing.Size(115, 13);
+            this.lblLastCheckTimeStamp.TabIndex = 3;
+            this.lblLastCheckTimeStamp.Text = "Last Update timestamp";
             // 
             // HalControle
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(1699, 1125);
+            this.ClientSize = new System.Drawing.Size(1559, 1056);
+            this.Controls.Add(this.lblLastCheckTimeStamp);
             this.Controls.Add(this.label3);
             this.Controls.Add(this.tabControl);
             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
@@ -1335,5 +1346,6 @@ namespace HalCheck
         private System.Windows.Forms.PictureBox pcESDwarning;
         private System.Windows.Forms.Panel pnlESDwarning;
         private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Label lblLastCheckTimeStamp;
     }
 }
\ No newline at end of file
diff --git a/HalCheck/HalControle.cs b/HalCheck/HalControle.cs
index ec2e315..1fbed44 100644
--- a/HalCheck/HalControle.cs
+++ b/HalCheck/HalControle.cs
@@ -1885,6 +1885,10 @@ namespace HalCheck
             List<int> sensorIds = rthSensors.Select(s => s.Id).ToList();
             List<(double temperature, double humidity)> sensorData = GetTemperaturesAndHumidity(sensorIds);
 
+            lblLastCheckTimeStamp.BringToFront();
+            lblLastCheckTimeStamp.Visible = true;
+            lblLastCheckTimeStamp.Text = "Last checked: " + DateTime.Now.ToString("HH:mm:ss");
+
             for (int i = 0; i < sensorData.Count; i++)
             {
                 rthSensors[i].Temperature = sensorData[i].temperature;
diff --git a/HalCheck/HalControle.resx b/HalCheck/HalControle.resx
index 2209b59..a8d6d12 100644
--- a/HalCheck/HalControle.resx
+++ b/HalCheck/HalControle.resx
@@ -157,7 +157,7 @@
     <value>17, 17</value>
   </metadata>
   <metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
-    <value>58</value>
+    <value>25</value>
   </metadata>
   <metadata name="dataGridViewTextBoxColumn1.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>True</value>