diff --git a/design_viewer_v1.ui b/design_viewer_v1.ui
index 02ce863..21f8f68 100644
--- a/design_viewer_v1.ui
+++ b/design_viewer_v1.ui
@@ -86,55 +86,25 @@
       </widget>
      </item>
      <item>
-      <widget class="QGroupBox" name="device_groupBox">
-       <property name="title">
-        <string>Выбор устройства</string>
+      <widget class="QComboBox" name="device">
+       <property name="currentText">
+        <string extracomment="Выбор COM-порта">1 устройство</string>
        </property>
-       <property name="checkable">
-        <bool>false</bool>
-       </property>
-       <widget class="QRadioButton" name="device1_radioButton">
-        <property name="geometry">
-         <rect>
-          <x>10</x>
-          <y>10</y>
-          <width>31</width>
-          <height>20</height>
-         </rect>
-        </property>
+       <item>
         <property name="text">
-         <string>1</string>
-        </property>
-        <property name="checked">
-         <bool>true</bool>
-        </property>
-       </widget>
-       <widget class="QRadioButton" name="device2_radioButton">
-        <property name="geometry">
-         <rect>
-          <x>10</x>
-          <y>30</y>
-          <width>31</width>
-          <height>17</height>
-         </rect>
+         <string>1 устройство</string>
         </property>
+       </item>
+       <item>
         <property name="text">
-         <string>2</string>
-        </property>
-       </widget>
-       <widget class="QRadioButton" name="device3_radioButton">
-        <property name="geometry">
-         <rect>
-          <x>50</x>
-          <y>20</y>
-          <width>31</width>
-          <height>17</height>
-         </rect>
+         <string>2 устройство</string>
         </property>
+       </item>
+       <item>
         <property name="text">
-         <string>3</string>
+         <string>3 устройство</string>
         </property>
-       </widget>
+       </item>
       </widget>
      </item>
      <item>
diff --git a/project/view.py b/project/view.py
index e9baef5..b28fcb4 100644
--- a/project/view.py
+++ b/project/view.py
@@ -282,11 +282,11 @@ class Ui(QtWidgets.QMainWindow):
         self.serial.setPortName(self.Port_ch.currentText())
         self.serial.open(QIODevice.ReadWrite)
         self.serial.flush()
-        if self.device1_radioButton.isChecked():
+        if self.device.currentIndex() == 0:
             self.serial.write(mes1.encode())
-        if self.device2_radioButton.isChecked():
+        if self.device.currentIndex() == 1:
             self.serial.write(mes2.encode())
-        if self.device3_radioButton.isChecked():
+        if self.device.currentIndex() == 2:
             self.serial.write(mes3.encode())
         self.on_close()
         MODE_COM_PORT = True
@@ -603,7 +603,7 @@ class Ui(QtWidgets.QMainWindow):
             self.Close_file.setVisible(True)
             self.Restart.setVisible(True)
             self.horizontalScrollBar.setVisible(False)
-            self.device_groupBox.setVisible(True)
+            self.device.setVisible(True)
         else:
             self.on_stop()
             self.OpenB.setVisible(True)
@@ -619,7 +619,7 @@ class Ui(QtWidgets.QMainWindow):
             self.Close_file.setVisible(False)
             self.Restart.setVisible(False)
             self.horizontalScrollBar.setVisible(True)
-            self.device_groupBox.setVisible(False)
+            self.device.setVisible(False)
 
     def set_send_mode(self):
         """Установка режима передачи данных (Bluetooth/433)"""
diff --git a/viewer.exe b/viewer.exe
index 737a1a4..5bd728e 100644
Binary files a/viewer.exe and b/viewer.exe differ