diff --git a/meta-olympus-nuvoton/recipes-phosphor/sensors/phosphor-hwmon/obmc/hwmon/ahb/apb/i2c@87000/tmp421@4c.conf b/meta-olympus-nuvoton/recipes-phosphor/sensors/phosphor-hwmon/obmc/hwmon/ahb/apb/i2c@87000/tmp421@4c.conf
index 3afeef7..775d70d 100644
--- a/meta-olympus-nuvoton/recipes-phosphor/sensors/phosphor-hwmon/obmc/hwmon/ahb/apb/i2c@87000/tmp421@4c.conf
+++ b/meta-olympus-nuvoton/recipes-phosphor/sensors/phosphor-hwmon/obmc/hwmon/ahb/apb/i2c@87000/tmp421@4c.conf
@@ -1,5 +1,7 @@
-LABEL_temp1 = "outlet"
+LABEL_temp1 = "inlet"
 WARNHI_temp1 = "110000"
 WARNLO_temp1 = "5000"
 CRITHI_temp1 = "115000"
 CRITLO_temp1 = "0"
+MINVALUE_temp1 = "-128"
+MAXVALUE_temp1 = "127"
\ No newline at end of file