diff --git a/src/PMS/PMS5003T.cpp b/src/PMS/PMS5003T.cpp
index 2fb99fb..57040a5 100644
--- a/src/PMS/PMS5003T.cpp
+++ b/src/PMS/PMS5003T.cpp
@@ -197,9 +197,8 @@ float PMS5003T::getTemperature(void) {
  * @return float Percent (%)
  */
 float PMS5003T::getRelativeHumidity(void) {
-  float temp = pmsData.AMB_HUM;
-  temp = temp / 10.0f;
-  return temp * 1.259 + 7.34;
+  float hum = pmsData.AMB_HUM;
+  return correctionRelativeHumidity(hum / 10.0f);
 }
 
 /**
@@ -235,3 +234,7 @@ void PMS5003T::end(void) {
 #endif
   AgLog("De-initialize");
 }
+
+float PMS5003T::correctionRelativeHumidity(float inHum) {
+  return inHum * 1.259 + 7.34;
+}
diff --git a/src/PMS/PMS5003T.h b/src/PMS/PMS5003T.h
index e1394ef..a93cd40 100644
--- a/src/PMS/PMS5003T.h
+++ b/src/PMS/PMS5003T.h
@@ -47,6 +47,7 @@ private:
   PMS::DATA pmsData;
   bool isBegin(void);
   float correctionTemperature(float inTemp);
+  float correctionRelativeHumidity(float inHum);
 };
 
 #endif /** _PMS5003T_H_ */