diff --git a/Modbus.Net/Modbus.Net/ComConnector.cs b/Modbus.Net/Modbus.Net/ComConnector.cs
index 0c5b417..5005498 100644
--- a/Modbus.Net/Modbus.Net/ComConnector.cs
+++ b/Modbus.Net/Modbus.Net/ComConnector.cs
@@ -459,7 +459,7 @@ namespace Modbus.Net
                         Log.Verbose("Com client {ConnectionToken} send msg length: {Length}", ConnectionToken,
                             sendbytes.Length);
                         Log.Verbose(
-                            $"Com client {ConnectionToken} send msg: {String.Concat(sendbytes.Select(p => " " + p))}");
+                            $"Com client {ConnectionToken} send msg: {String.Concat(sendbytes.Select(p => " " + p.ToString("X2")))}");
                         SerialPort.Write(sendbytes, 0, sendbytes.Length);
                     }
                     catch (Exception err)
@@ -475,7 +475,7 @@ namespace Modbus.Net
                         Log.Verbose("Com client {ConnectionToken} receive msg length: {Length}", ConnectionToken,
                             returnBytes.Length);
                         Log.Verbose(
-                            $"Com client {ConnectionToken} receive msg: {String.Concat(returnBytes.Select(p => " " + p))}");
+                            $"Com client {ConnectionToken} receive msg: {String.Concat(returnBytes.Select(p => " " + p.ToString("X2")))}");
                     }
                     catch (Exception e)
                     {
@@ -531,7 +531,7 @@ namespace Modbus.Net
                         Log.Verbose("Com client {ConnectionToken} send msg length: {Length}", ConnectionToken,
                             sendbytes.Length);
                         Log.Verbose(
-                            $"Com client {ConnectionToken} send msg: {string.Concat(sendbytes.Select(p => " " + p))}");
+                            $"Com client {ConnectionToken} send msg: {string.Concat(sendbytes.Select(p => " " + p.ToString("X2")))}");
                         SerialPort.Write(sendbytes, 0, sendbytes.Length);
                     }
                     catch (Exception err)
diff --git a/Modbus.Net/src/Base.Common/TcpConnector.cs b/Modbus.Net/src/Base.Common/TcpConnector.cs
index a73c96f..28da173 100644
--- a/Modbus.Net/src/Base.Common/TcpConnector.cs
+++ b/Modbus.Net/src/Base.Common/TcpConnector.cs
@@ -241,7 +241,7 @@ namespace Modbus.Net
                 var stream = _socketClient.GetStream();
 
                 Log.Verbose("Tcp client {ConnectionToken} send text len = {Length}", ConnectionToken, datagram.Length);
-                Log.Verbose($"Tcp client {ConnectionToken} send text = {String.Concat(datagram.Select(p => " " + p))}");
+                Log.Verbose($"Tcp client {ConnectionToken} send text = {String.Concat(datagram.Select(p => " " + p.ToString("X2")))}");
                 await stream.WriteAsync(datagram, 0, datagram.Length);
 
                 RefreshSendCount();
@@ -285,13 +285,13 @@ namespace Modbus.Net
                 RefreshSendCount();
 
                 Log.Verbose("Tcp client {ConnectionToken} send text len = {Length}", ConnectionToken, datagram.Length);
-                Log.Verbose($"Tcp client {ConnectionToken} send: {String.Concat(datagram.Select(p => " " + p))}");
+                Log.Verbose($"Tcp client {ConnectionToken} send: {String.Concat(datagram.Select(p => " " + p.ToString("X2")))}");
                 await stream.WriteAsync(datagram, 0, datagram.Length);
 
                 var receiveBytes = await ReceiveAsync(stream);
                 Log.Verbose("Tcp client {ConnectionToken} receive text len = {Length}", ConnectionToken,
                     receiveBytes.Length);
-                Log.Verbose($"Tcp client {ConnectionToken} receive: {String.Concat(receiveBytes.Select(p => " " + p))}");
+                Log.Verbose($"Tcp client {ConnectionToken} receive: {String.Concat(receiveBytes.Select(p => " " + p.ToString("X2")))}");
 
                 RefreshReceiveCount();