diff --git a/include/data_handling/DataNames.h b/include/data_handling/DataNames.h
index 64d81c3..50fcb76 100644
--- a/include/data_handling/DataNames.h
+++ b/include/data_handling/DataNames.h
@@ -42,4 +42,7 @@
 // Active Aero
 #define FIN_DEPLOYMENT_AMOUNT 21
 
-#endif
\ No newline at end of file
+// Payload
+#define PROBE_TEMPERATURE 28
+
+#endif