Index: firmware/App/Monitors/Temperature.c
===================================================================
diff -u -r019e570cacd748a39dfbd500fe5bd65f596f488c -r0797158d6e367debb04e043798f1aeb1fb17063b
--- firmware/App/Monitors/Temperature.c	(.../Temperature.c)	(revision 019e570cacd748a39dfbd500fe5bd65f596f488c)
+++ firmware/App/Monitors/Temperature.c	(.../Temperature.c)	(revision 0797158d6e367debb04e043798f1aeb1fb17063b)
@@ -379,6 +379,7 @@
 static void filterDialTemperatureReadings( void )
 {
     DIAL_TEMPERATURE_SENSORS_T i;
+    F32 temperatureC = 0.0F;
 
     for ( i = DIAL_TEMP_FIRST; i < NUM_OF_DIAL_TEMPS; i++ )
     {
@@ -391,9 +392,17 @@
         {
             CONDUCTIVITY_SENSORS_T sensor = ( DIAL_TEMP_D28 == i ? D27_COND : D29_COND );
 #ifdef __TEENSY_CONDUCTIVITY_DRIVER__
-            F32 temperatureC             = getTeensyConductivityTemperatureValue( sensor );
+
+            if (sensor != D74_COND)
+            {
+                temperatureC = getTeensyConductivityTemperatureValue( sensor );
+            }
+            else
+            {
+                temperatureC = getConductivityTemperatureValue( sensor );
+            }
 #else
-            F32 temperatureC             = getConductivityTemperatureValue( sensor );
+            temperatureC = getConductivityTemperatureValue( sensor );
 #endif
             U32 currentIndex             = dialTempMovingAvgData[ i ].dialTempSamplesNextIndex;
             F32 prevSampleToRemoveC      = dialTempMovingAvgData[ i ].dialTempSamplesC[ currentIndex ];
@@ -530,7 +539,7 @@
         data.d28CondTemp    = getTeensyConductivityTemperatureValue( D27_COND );
         data.d30CondTemp    = getTeensyConductivityTemperatureValue( D29_COND );
         data.d44CondTemp    = getTeensyConductivityTemperatureValue( D43_COND );
-        data.d75CondTemp    = getTeensyConductivityTemperatureValue( D74_COND );
+        data.d75CondTemp    = getConductivityTemperatureValue( D74_COND );
 #else
         data.d16CondTemp    = getConductivityTemperatureValue( D17_COND );
         data.d28CondTemp    = getConductivityTemperatureValue( D27_COND );