diff --git a/lib/SMLParser/sml.cpp b/lib/SMLParser/sml.cpp
index 455bdb05..574dc12d 100644
--- a/lib/SMLParser/sml.cpp
+++ b/lib/SMLParser/sml.cpp
@@ -403,3 +403,19 @@ void smlOBISAmpere(float &a)
   a = val;
   smlPow(a, sc);
 }
+
+void smlOBISHertz(float &h)
+{
+  long long int val;
+  smlOBISByUnit(val, sc, SML_HERTZ);
+  h = val;
+  smlPow(h, sc);
+}
+
+void smlOBISDegree(float &d)
+{
+  long long int val;
+  smlOBISByUnit(val, sc, SML_DEGREE);
+  d = val;
+  smlPow(d, sc);
+}
diff --git a/lib/SMLParser/sml.h b/lib/SMLParser/sml.h
index ea89f250..6830dcc6 100644
--- a/lib/SMLParser/sml.h
+++ b/lib/SMLParser/sml.h
@@ -101,5 +101,7 @@ void smlOBISWh(float &wh);
 void smlOBISW(float &w);
 void smlOBISVolt(float &v);
 void smlOBISAmpere(float &a);
+void smlOBISHertz(float &h);
+void smlOBISDegree(float &d);
 
 #endif