diff --git a/Core/Src/yunhorn_sts_presence_rss.c b/Core/Src/yunhorn_sts_presence_rss.c
index 45fcabf..0e724ac 100644
--- a/Core/Src/yunhorn_sts_presence_rss.c
+++ b/Core/Src/yunhorn_sts_presence_rss.c
@@ -67,7 +67,7 @@
 //#define DEFAULT_UPDATE_RATE_PRESENCE 				(80.0F)		//(65.0f)		//default 80 unit(hz)
 
 #define DEFAULT_HWAAS								(63)		//default 10 unit(hz)
-#define DEFAULT_THRESHOLD            				(1.5f)		//default 1.5 level float			[3]
+#define DEFAULT_THRESHOLD            				(1.2f)		//default 1.5 level float			[3]
 
 //acc_detector_presence_configuration_filter_parameters_t
 #define DEFAULT_INTER_FRAME_DEVIATION_TIME_CONST	(0.5f)		//default 0.5 unit(seconds)			[6]