diff --git a/src/measurement/piezo_measure.c b/src/measurement/piezo_measure.c
index 86a69b5..7db90e9 100644
--- a/src/measurement/piezo_measure.c
+++ b/src/measurement/piezo_measure.c
@@ -19,11 +19,11 @@
 #define PIEZO_CFG_FREQ_2_3MHZ 5
 
 /* 앱에서 저장/변경 가능한 piezo 측정 기본값 */
-#define PIEZO_CFG_FREQ_DEFAULT       PIEZO_CFG_FREQ_2_1MHZ
-#define PIEZO_CFG_CYCLES_DEFAULT     7
+#define PIEZO_CFG_FREQ_DEFAULT       PIEZO_CFG_FREQ_2_3MHZ
+#define PIEZO_CFG_CYCLES_DEFAULT     3
 #define PIEZO_CFG_DELAY_DEFAULT      10
 #define PIEZO_CFG_SAMPLES_DEFAULT    100
-#define PIEZO_CFG_AVG_DEFAULT        3
+#define PIEZO_CFG_AVG_DEFAULT        10
 
 /* 설정값 검증 범위 */
 #define PIEZO_CFG_FREQ_MAX           PIEZO_CFG_FREQ_2_3MHZ