diff --git a/TestBenchFramework/BenchControl/Greco/Ambient.cs b/TestBenchFramework/BenchControl/Greco/Ambient.cs
index 8321b0fa5..1991b4cf2 100644
--- a/TestBenchFramework/BenchControl/Greco/Ambient.cs
+++ b/TestBenchFramework/BenchControl/Greco/Ambient.cs
@@ -156,16 +156,19 @@ namespace TBF.BenchControl.Greco
 
 		public IOperation ReadAmbientOp(FloatBox temperature, FloatBox pressure, FloatBox humidity)
 		{
-			this.tempBox = temperature;
+			this.tempBox     = temperature;
 			this.pressureBox = pressure;
-			this.humiBox = humidity;
+			this.humiBox     = humidity;
 			return this;
 		}
 
 		/// <summary>Start this operation</summary>
 		public void Start()
 		{
-		}
+            if (tempBox     != null) tempBox.Val     = temperature;
+            if (pressureBox != null) pressureBox.Val = pressure;
+            if (humiBox     != null) humiBox.Val     = humidity;
+        }
 
 		/// <summary>Run this operation</summary>
 		/// <returns>
@@ -173,10 +176,10 @@ namespace TBF.BenchControl.Greco
 		/// </returns>
 		public Event Run()
 		{
-			tempBox.Val = temperature;
-			pressureBox.Val = pressure;
-			humiBox.Val = humidity;
-			return Event.AmbientDone;
+            if (tempBox     != null) tempBox.Val     = temperature;
+            if (pressureBox != null) pressureBox.Val = pressure;
+            if (humiBox     != null) humiBox.Val     = humidity;
+            return Event.AmbientDone;
 		}
 
 		/// <summary>Stop this operation</summary>
diff --git a/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs b/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
index 8bc97593a..e93ccbd55 100644
--- a/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
+++ b/TestBenchFramework/BenchControl/Sequences/SequenceBase.cs
@@ -268,6 +268,7 @@ namespace TBF.BenchControl.Sequences
                                Formulas.VolumeFromPulses(refCount.Val, 1.0f / ltrPerRefPulse),
                                tempIn,
                                tempOut,
+                               tempDiv,
                                pressIn,
                                pressOut,
                                mass,
diff --git a/packages/ControlBoard/Fuzhou300/ControlComponent3U.dll b/packages/ControlBoard/Fuzhou300/ControlComponent3U.dll
index 674ac1743..26247e63e 100644
Binary files a/packages/ControlBoard/Fuzhou300/ControlComponent3U.dll and b/packages/ControlBoard/Fuzhou300/ControlComponent3U.dll differ