Index: firmware/App/Controllers/Pressures.c
===================================================================
diff -u -r4e11c80367b5ae522aa34fb137079e516c98831b -r059eb49a6f8fd2e2277b98b4aee986eb4519820a
--- firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 4e11c80367b5ae522aa34fb137079e516c98831b)
+++ firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 059eb49a6f8fd2e2277b98b4aee986eb4519820a)
@@ -433,12 +433,12 @@
 static F32 calculateBaroPressure( U32 adcSum )
 {
     S32 tempDiff        = getBaroSensorTemperatureDiff();
-    U64 tempOffset      = ( baroConvConsts.pressureOffsetTempCoeff * tempDiff ) / TWO_TO_POWER_OF_6;
-    U64 presOffset      = baroConvConsts.pressureOffset * TWO_TO_POWER_OF_17;
-    U64 offset          = presOffset + tempOffset;
-    U64 tempSensitivity = ( baroConvConsts.pressureSensitivityTempCoeff * tempDiff ) / TWO_TO_POWER_OF_7;
-    U64 presSensitivity = baroConvConsts.pressureSensitivity * TWO_TO_POWER_OF_16;
-    U64 sensitivity     = tempSensitivity + presSensitivity;
+    S64 tempOffset      = ( baroConvConsts.pressureOffsetTempCoeff * tempDiff ) / TWO_TO_POWER_OF_6;
+    S64 presOffset      = baroConvConsts.pressureOffset * TWO_TO_POWER_OF_17;
+    S64 offset          = presOffset + tempOffset;
+    S64 tempSensitivity = ( baroConvConsts.pressureSensitivityTempCoeff * tempDiff ) / TWO_TO_POWER_OF_7;
+    S64 presSensitivity = baroConvConsts.pressureSensitivity * TWO_TO_POWER_OF_16;
+    S64 sensitivity     = tempSensitivity + presSensitivity;
     S32 pres            = (S32)( ( ( adcSum * sensitivity ) / TWO_TO_POWER_OF_21 ) - offset ) / TWO_TO_POWER_OF_15;
     F32 presPSI         = ( (F32)pres / (F32)( COUNTS_TO_MILLI_BAR * ONE_BAR_TO_MILLI_BAR ) ) * ONE_BAR_TO_PSI_CONVERSION;