diff --git a/custom_components/solvis_control/const.py b/custom_components/solvis_control/const.py
index 077f3fd..5ef923b 100644
--- a/custom_components/solvis_control/const.py
+++ b/custom_components/solvis_control/const.py
@@ -216,8 +216,8 @@ class ModbusFieldConfig:
     ModbusFieldConfig(  # A04.Pumpe HKR 2
         name="a04_pumpe_hkr2",
         address=33283,
-        unit="V",
-        device_class="voltage",
+        unit="%",
+        device_class="power_factor",
         state_class="measurement",
         multiplier=0.01,
         conf_option=1,