Index: firmware/App/Controllers/ConductivitySensors.c
===================================================================
diff -u -ra9315539f527b92523b1598ff91e47db4d71dae2 -re0cdf49eb0f54239e5d765282e0952cea7ded1bd
--- firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision a9315539f527b92523b1598ff91e47db4d71dae2)
+++ firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision e0cdf49eb0f54239e5d765282e0952cea7ded1bd)
@@ -40,7 +40,7 @@
 #define COND_CPO_SENSOR_PROBE_TYPE                      10                                          ///< 0.1 K cell constant conductivity probe.
 
 #define COND_SENSOR_DECIMAL_CONVERSION                  100                                         ///< Conductivity value from FPGA has two decimal place.
-#define COND_SENSOR_TEMPERATURE_COEF                    0.02                                        ///< Linear temperature coefficient of variation at 25 Celcius for fresh water.
+#define COND_SENSOR_TEMPERATURE_COEF                    0.02F                                       ///< Linear temperature coefficient of variation at 25 Celcius for fresh water.
 #define COND_SENSOR_REFERENCE_TEMPERATURE               25                                          ///< Reference temperature for conductivity sensor.
 #define COND_SENSOR_REPORT_PERIOD                       ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL )  ///< Broadcast conductivity values message every second.
 
@@ -51,9 +51,9 @@
 #define MAX_CONDUCTIVITY_SENSOR_FAILURES                5                                           ///< maximum number of conductivity sensor errors within window period before alarm.
 #define MAX_CONDUCTIVITY_SENSOR_FAILURE_WINDOW_MS       ( 60 * MS_PER_SECOND )                      ///< Conductivity sensor error window.
 
-#define RO_REJECTION_RATIO_OUT_OF_RANGE_VALUE           1.0                                         ///< Out of range value for RO rejection ratio when CPi conductivity is zero.
-#define MAX_RO_REJECTION_RATIO_ALLOW                    0.1                                         ///< Maximum RO rejection ratio.
-#define MAX_CPO_CONDUCTIVITY_ALLOW                      15.0                                        ///< Maximum CPo sensor conductivity value.
+#define RO_REJECTION_RATIO_OUT_OF_RANGE_VALUE           1.0F                                        ///< Out of range value for RO rejection ratio when CPi conductivity is zero.
+#define MAX_RO_REJECTION_RATIO_ALLOW                    0.1F                                        ///< Maximum RO rejection ratio.
+#define MAX_CPO_CONDUCTIVITY_ALLOW                      15.0F                                       ///< Maximum CPo sensor conductivity value.
 
 #define COND_SENSOR_PERSISTENCE_PERIOD                  ( 5 * MS_PER_SECOND )                       ///< Persistence period for conductivity sensor out of range error.
 #define RO_REJECTION_RATIO_PERSISTENCE_PERIOD           ( 10 * MS_PER_SECOND )                      ///< Persistence period for RO rejection ratio.