diff --git a/fhem/CHANGED b/fhem/CHANGED
index ccc4eb88d..41b47e7dd 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,7 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - bugfix:  74_XiaomiBTLESens : fix warning Illegal hexadecimal digit
+                                 ignored
   - bugfix:  93_DbLog: timer not deleted if reopen after reopen xxx executed
              (forum.fhem.de/index.php/topic,91869.msg848433.html#msg848433)
   - feature: 70_ZoneMinder: added attribute loginInterval and setter for login
diff --git a/fhem/FHEM/74_XiaomiBTLESens.pm b/fhem/FHEM/74_XiaomiBTLESens.pm
index cd6711cc2..ebaea1e1d 100644
--- a/fhem/FHEM/74_XiaomiBTLESens.pm
+++ b/fhem/FHEM/74_XiaomiBTLESens.pm
@@ -35,7 +35,7 @@ package main;
 use strict;
 use warnings;
 
-my $version = "2.4.2";
+my $version = "2.4.3";
 
 sub XiaomiBTLESens_Initialize($) {
 
@@ -860,6 +860,7 @@ sub ThermoHygroSensHandle0x18($$) {
     Log3 $name, 4, "XiaomiBTLESens ($name) - Thermo/Hygro Sens Handle0x18";
 
     chomp($notification);
+    $notification =~ s/ //g;
 
     ### neue Vereinheitlichung für Batteriereadings Forum #800017
     $readings{'batteryPercent'} = hex( "0x" . $notification );