diff --git a/controls_NukiSmart.txt b/controls_NukiSmart.txt
index ce9b57c..c7f7797 100644
--- a/controls_NukiSmart.txt
+++ b/controls_NukiSmart.txt
@@ -1,4 +1,4 @@
-UPD 2025-10-14_10:40:53 10358 FHEM/73_NUKIBridge.pm
-UPD 2025-10-14_10:41:09 11100 FHEM/74_NUKIDevice.pm
-UPD 2025-10-14_10:42:11 42820 lib/FHEM/Devices/Nuki/Bridge.pm
-UPD 2025-10-14_10:42:04 16698 lib/FHEM/Devices/Nuki/Device.pm
+UPD 2025-10-14_11:00:54 10358 FHEM/73_NUKIBridge.pm
+UPD 2025-10-14_11:00:54 11100 FHEM/74_NUKIDevice.pm
+UPD 2025-10-14_11:00:54 42820 lib/FHEM/Devices/Nuki/Bridge.pm
+UPD 2025-10-15_06:43:51 16775 lib/FHEM/Devices/Nuki/Device.pm
diff --git a/lib/FHEM/Devices/Nuki/Device.pm b/lib/FHEM/Devices/Nuki/Device.pm
index 91766f4..4bb6637 100644
--- a/lib/FHEM/Devices/Nuki/Device.pm
+++ b/lib/FHEM/Devices/Nuki/Device.pm
@@ -30,7 +30,7 @@ use strict;
 use warnings;
 
 #use experimental qw( switch );
-
+use Encode;
 use FHEM::Meta;
 
 use GPUtils qw(GP_Import);
@@ -550,7 +550,8 @@ sub WriteReadings {
     while ( ( $t, $v ) = each %{$decode_json} ) {
 
         # generische readings (alles außer spezielle Felder)
-        ::readingsBulkUpdate( $hash, $t, $v )
+        ::readingsBulkUpdate( $hash, $t,
+            Encode::is_utf8($v) ? Encode::encode( "UTF-8", $v ) : $v )
           if ( $t ne 'state'
             && $t ne 'mode'
             && $t ne 'deviceType'