diff --git a/velocity.cpp b/velocity.cpp
index 437dd0f..92be270 100644
--- a/velocity.cpp
+++ b/velocity.cpp
@@ -28,12 +28,72 @@ Velocity::Velocity(int slot_no_, int channel_, bool active, QWidget *parent)
     Init();
     connect(ui->checkBox_1x_ampl, &QCheckBox::toggled, this, &Velocity::on_1x_ampl_toggled);
     connect(ui->checkBox_2x_ampl, &QCheckBox::toggled, this, &Velocity::on_2x_ampl_toggled);
+    connect(ui->checkBox_rms, &QCheckBox::toggled, this, &Velocity::on_rms_toggled);
+    connect(ui->checkBox_integrate, &QCheckBox::toggled, this, &Velocity::on_integrate_toggled);
 }
 
 Velocity::~Velocity() {
     delete ui;
 }
 
+void Velocity::on_rms_toggled(bool checked) {
+    // TODO: 自定义的回调
+    if (checked) {
+        ui->checkBox_integrate->setEnabled(false);
+        QStringList items = {"0-10 mm/s rms", "0-20 mm/s rms", "0-50 mm/s rms", "自定义"};
+        ui->comboBox_direct_value_range->clear();
+        ui->comboBox_direct_value_range->addItems(items);
+        ui->comboBox_direct_value_range->setCurrentIndex(1);
+        ui->comboBox_1x_value_range->clear();
+        ui->comboBox_1x_value_range->addItems(items);
+        ui->comboBox_1x_value_range->setCurrentIndex(1);
+        ui->comboBox_2x_value_range->clear();
+        ui->comboBox_2x_value_range->addItems(items);
+        ui->comboBox_2x_value_range->setCurrentIndex(1);
+        return;
+    }
+    ui->checkBox_integrate->setEnabled(true);
+    ui->comboBox_direct_value_range->clear();
+    QStringList items = {"0-10 mm/s pk", "0-20 mm/s pk", "0-50 mm/s pk", "自定义"};
+    ui->comboBox_direct_value_range->addItems(items);
+    ui->comboBox_direct_value_range->setCurrentIndex(1);
+    ui->comboBox_1x_value_range->clear();
+    ui->comboBox_1x_value_range->addItems(items);
+    ui->comboBox_1x_value_range->setCurrentIndex(1);
+    ui->comboBox_2x_value_range->clear();
+    ui->comboBox_2x_value_range->addItems(items);
+    ui->comboBox_2x_value_range->setCurrentIndex(1);
+}
+
+void Velocity::on_integrate_toggled(bool checked) {
+    // TODO: 自定义的回调
+    if (checked) {
+        ui->checkBox_rms->setEnabled(false);
+        ui->comboBox_direct_value_range->clear();
+        QStringList items = {"0-100 um pp", "0-200 um pp", "0-500 um pp", "自定义"};
+        ui->comboBox_direct_value_range->addItems(items);
+        ui->comboBox_direct_value_range->setCurrentIndex(1);
+        ui->comboBox_1x_value_range->clear();
+        ui->comboBox_1x_value_range->addItems(items);
+        ui->comboBox_1x_value_range->setCurrentIndex(1);
+        ui->comboBox_2x_value_range->clear();
+        ui->comboBox_2x_value_range->addItems(items);
+        ui->comboBox_2x_value_range->setCurrentIndex(1);
+        return;
+    }
+    ui->checkBox_rms->setEnabled(true);
+    ui->comboBox_direct_value_range->clear();
+    QStringList items = {"0-10 mm/s pk", "0-20 mm/s pk", "0-50 mm/s pk", "自定义"};
+    ui->comboBox_direct_value_range->addItems(items);
+    ui->comboBox_direct_value_range->setCurrentIndex(1);
+    ui->comboBox_1x_value_range->clear();
+    ui->comboBox_1x_value_range->addItems(items);
+    ui->comboBox_1x_value_range->setCurrentIndex(1);
+    ui->comboBox_2x_value_range->clear();
+    ui->comboBox_2x_value_range->addItems(items);
+    ui->comboBox_2x_value_range->setCurrentIndex(1);
+}
+
 void Velocity::on_pushButton_cancel_clicked() {
     this->close();
 }
diff --git a/velocity.h b/velocity.h
index 333c14b..1cee422 100644
--- a/velocity.h
+++ b/velocity.h
@@ -22,6 +22,8 @@ class Velocity : public QWidget {
     void on_pushButton_cancel_clicked();
     void on_1x_ampl_toggled(bool checked);
     void on_2x_ampl_toggled(bool checked);
+    void on_rms_toggled(bool checked);
+    void on_integrate_toggled(bool checked);
 
   private:
     Ui::Velocity *ui;
diff --git a/velocity.ui b/velocity.ui
index 4252d0c..bc2d851 100644
--- a/velocity.ui
+++ b/velocity.ui
@@ -376,9 +376,30 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="currentText">
+       <string>0-20 mm/s pk</string>
+      </property>
+      <property name="currentIndex">
+       <number>1</number>
+      </property>
       <item>
        <property name="text">
-        <string>0 - 20 mm/s</string>
+        <string>0-10 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-20 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-50 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>自定义</string>
        </property>
       </item>
      </widget>
@@ -391,6 +412,9 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="decimals">
+       <number>1</number>
+      </property>
      </widget>
      <widget class="QLabel" name="label_bias_voltage">
       <property name="geometry">
@@ -430,9 +454,27 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="currentIndex">
+       <number>1</number>
+      </property>
       <item>
        <property name="text">
-        <string>0 - 20 mm/s</string>
+        <string>0-10 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-20 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-50 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>自定义</string>
        </property>
       </item>
      </widget>
@@ -448,6 +490,9 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="decimals">
+       <number>1</number>
+      </property>
      </widget>
      <widget class="QLabel" name="label_76">
       <property name="geometry">
@@ -503,6 +548,9 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="decimals">
+       <number>1</number>
+      </property>
      </widget>
      <widget class="QDoubleSpinBox" name="doubleSpinBox_2x_phase_lag_clamp">
       <property name="enabled">
@@ -532,9 +580,27 @@
         <height>22</height>
        </rect>
       </property>
+      <property name="currentIndex">
+       <number>1</number>
+      </property>
       <item>
        <property name="text">
-        <string>0 - 20 mm/s</string>
+        <string>0-10 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-20 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>0-50 mm/s pk</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>自定义</string>
        </property>
       </item>
      </widget>