Index: firmware/App/Drivers/SafetyShutdown.c
===================================================================
diff -u -r61716bc97ecca8af1ec560333844a8cf602eccb0 -ra7675f3c917b632cf16207fc7ccfc1f38eb83f9b
--- firmware/App/Drivers/SafetyShutdown.c	(.../SafetyShutdown.c)	(revision 61716bc97ecca8af1ec560333844a8cf602eccb0)
+++ firmware/App/Drivers/SafetyShutdown.c	(.../SafetyShutdown.c)	(revision a7675f3c917b632cf16207fc7ccfc1f38eb83f9b)
@@ -41,10 +41,10 @@
 #define SAFETY_SHUTDOWN_POST_TIMEOUT_MS     500                   ///< Safety shutdown POST test timeout (in ms).
 #define SAFETY_SHUTDOWN_RECOVERY_TIME_MS    500                   ///< After safety shutdown POST test, wait this long (in ms) to recover before moving on.
 
-#define MAX_24V_LEVEL_ON_SAFETY_SHUTDOWN    5.0                   ///< Maximum voltage on 24V line when safety shutdown asserted.
-#define MIN_24V_LEVEL_ON_SAFETY_RECOVER     22.6                  ///< Minimum voltage on 24V line when safety shutdown is recovered.
-#define MIN_BACKUP_ALARM_CURRENT_MA         200.0                 ///< Minimum backup alarm audio current (in mA) detected when safety shutdown asserted.
-#define MAX_BACKUP_ALARM_CURRENT_MA         10.0                  ///< Maximum backup alarm audio current (in mA) detected when safety shutdown is recovered.
+#define MAX_24V_LEVEL_ON_SAFETY_SHUTDOWN    5.0F                  ///< Maximum voltage on 24V line when safety shutdown asserted.
+#define MIN_24V_LEVEL_ON_SAFETY_RECOVER     22.6F                 ///< Minimum voltage on 24V line when safety shutdown is recovered.
+#define MIN_BACKUP_ALARM_CURRENT_MA         200.0F                ///< Minimum backup alarm audio current (in mA) detected when safety shutdown asserted.
+#define MAX_BACKUP_ALARM_CURRENT_MA         10.0F                 ///< Maximum backup alarm audio current (in mA) detected when safety shutdown is recovered.
 
 #define SAFETY_POST_24V_NOT_CUT             1                     ///< Safety shutdown POST failed because 24V was not cut when safety line pulled.
 #define SAFETY_POST_NO_24V_RESTORE          2                     ///< Safety shutdown POST failed because 24V was not restored when safety line reset.