diff --git a/README.md b/README.md
index 3d6ddaf..dc5eb65 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,8 @@ data:
 
 > After reverse engineering the API myself I found out that there is already a Python libary wrapping the Alfen API.
 > https://gitlab.com/LordGaav/alfen-eve/-/tree/develop/alfeneve
+> 
+> https://github.com/leeyuentuen/alfen_wallbox/wiki/API-paramID
 
 ## Installation
 
diff --git a/custom_components/alfen_wallbox/number.py b/custom_components/alfen_wallbox/number.py
index 17be3b8..284a7f6 100644
--- a/custom_components/alfen_wallbox/number.py
+++ b/custom_components/alfen_wallbox/number.py
@@ -186,7 +186,7 @@ class AlfenNumberDescription(NumberEntityDescription, AlfenNumberDescriptionMixi
         native_max_value=30,
         native_step=1,
         custom_mode=None,
-        unit_of_measurement=UnitOfElectricCurrent.AMPERE,
+        unit_of_measurement=UnitOfTime.SECONDS,
         api_param="21B9_0",
         round_digits=None,
     ),
@@ -381,7 +381,7 @@ class AlfenNumberDescription(NumberEntityDescription, AlfenNumberDescriptionMixi
         native_max_value=30,
         native_step=1,
         custom_mode=None,
-        unit_of_measurement=CURRENCY_EURO,
+        unit_of_measurement=UnitOfTime.SECONDS,
         api_param="2136_0",
         round_digits=None
     ),
@@ -397,7 +397,7 @@ class AlfenNumberDescription(NumberEntityDescription, AlfenNumberDescriptionMixi
         native_max_value=30,
         native_step=1,
         custom_mode=None,
-        unit_of_measurement=CURRENCY_EURO,
+        unit_of_measurement=UnitOfTime.SECONDS,
         api_param="2184_0",
         round_digits=None
     ),
@@ -413,7 +413,7 @@ class AlfenNumberDescription(NumberEntityDescription, AlfenNumberDescriptionMixi
         native_max_value=30,
         native_step=1,
         custom_mode=None,
-        unit_of_measurement=CURRENCY_EURO,
+        unit_of_measurement=UnitOfTime.SECONDS,
         api_param="2168_0",
         round_digits=None
     ),