diff --git a/src/www/widgets/widgets/thermal_sensors.widget.php b/src/www/widgets/widgets/thermal_sensors.widget.php
index 4bb227558..734dec8b5 100644
--- a/src/www/widgets/widgets/thermal_sensors.widget.php
+++ b/src/www/widgets/widgets/thermal_sensors.widget.php
@@ -30,28 +30,40 @@ require_once("guiconfig.inc");
 
 config_read_array('widgets', 'thermal_sensors_widget');
 
-function validate_temp_value($value)
+function fix_temp_value($value, int $default): int
 {
     if (is_numeric($value) && (int)$value == $value && $value >= 0 and $value <= 100) {
+        return (int)$value;
+    } else {
+        return $default;
+    }
+}
+
+function fix_checkbox_value($value): bool
+{
+    if ($value !== '') {
         return true;
     } else {
         return false;
     }
 }
 
-$fieldnames = array('thermal_sensors_widget_zone_warning_threshold', 'thermal_sensors_widget_zone_critical_threshold',
-               'thermal_sensors_widget_core_warning_threshold', 'thermal_sensors_widget_core_critical_threshold');
+$fields = [
+    ['name' => 'thermal_sensors_widget_zone_warning_threshold', 'default' => 70, 'processFunc' => 'fix_temp_value'],
+    ['name' => 'thermal_sensors_widget_zone_critical_threshold', 'default' => 80, 'processFunc' => 'fix_temp_value'],
+    ['name' => 'thermal_sensors_widget_core_warning_threshold', 'default' => 70, 'processFunc' => 'fix_temp_value'],
+    ['name' => 'thermal_sensors_widget_core_critical_threshold', 'default' => 80, 'processFunc' => 'fix_temp_value'],
+    ['name' => 'thermal_sensors_widget_show_one_core_temp', 'default' => false, 'processFunc' => 'fix_checkbox_value'],
+];
 if ($_SERVER['REQUEST_METHOD'] === 'GET') {
-    $pconfig = array();
-    foreach ($fieldnames as $fieldname) {
-        $defaultValue = strpos($fieldname, 'critical') !== false ? 80 : 70;
-        $pconfig[$fieldname] = !empty($config['widgets']['thermal_sensors_widget'][$fieldname]) ? $config['widgets']['thermal_sensors_widget'][$fieldname] : $defaultValue;
+    $pconfig = [];
+    foreach ($fields as $field) {
+        $pconfig[$field['name']] = !empty($config['widgets']['thermal_sensors_widget'][$field['name']]) ? $config['widgets']['thermal_sensors_widget'][$field['name']] : $field['default'];
     }
 } elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
-    foreach ($fieldnames as $fieldname) {
-        $defaultValue = strpos($fieldname, 'critical') !== false ? 80 : 70;
-        $newValue = !empty($_POST[$fieldname]) ? $_POST[$fieldname] : "";
-        $config['widgets']['thermal_sensors_widget'][$fieldname] = validate_temp_value($newValue) ? $newValue : $defaultValue;
+    foreach ($fields as $field) {
+        $newValue = $field['processFunc']($_POST[$field['name']] ?? '', $field['default']);
+        $config['widgets']['thermal_sensors_widget'][$field['name']] = $newValue;
     }
     write_config("Thermal sensors widget saved via Dashboard.");
     header(url_safe('Location: /index.php'));
@@ -60,53 +72,71 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 
 ?>
 <script>
-  function thermal_sensors_widget_update(sender, data)
-  {
-    data.map(function(sensor) {
-      var tempIntValue = parseInt(sensor['temperature']);
-      var progressbar = $("#thermal_sensors_widget_progress_bar").html();
-      var tbody = sender.find('tbody');
-      var tr_id = "thermal_sensors_widget_" + sensor['device'].replace(/\./g, '_');
-      if (tbody.find("#"+tr_id).length == 0) {
-          var tr_content = [];
-          tr_content.push('<tr id="'+tr_id+'">');
-          tr_content.push('<td>'+progressbar+'</td>');
-          tr_content.push('</tr>');
-          tbody.append(tr_content.join(''));
-      }
-      let danger_temp, warning_temp;
-      // probe warning / danger temp
-      if (sensor['type'] == 'core') {
-          danger_temp = parseInt($("#thermal_sensors_widget_core_critical_threshold").val());
-          warning_temp = parseInt($("#thermal_sensors_widget_core_warning_threshold").val());
-      } else {
-          danger_temp = parseInt($("#thermal_sensors_widget_zone_critical_threshold").val());
-          warning_temp = parseInt($("#thermal_sensors_widget_zone_warning_threshold").val());
-      }
-      // progress bar style
-      if (tempIntValue > danger_temp) {
-          $("#"+tr_id + " .progress-bar").removeClass('progress-bar-success')
-            .removeClass('progress-bar-warning')
-            .removeClass('progress-bar-danger')
-            .addClass('progress-bar-danger');
-      } else if (tempIntValue > warning_temp) {
-          $("#"+tr_id + " .progress-bar").removeClass('progress-bar-success')
-            .removeClass('progress-bar-warning')
-            .removeClass('progress-bar-danger')
-            .addClass('progress-bar-warning');
-      } else {
-          $("#"+tr_id + " .progress-bar").removeClass('progress-bar-success')
-            .removeClass('progress-bar-warning')
-            .removeClass('progress-bar-danger')
-            .addClass('progress-bar-success');
-      }
-      // update bar
-      $("#"+tr_id + " .progress-bar").html(sensor['temperature'] + ' &deg;C');
-      $("#"+tr_id + " .progress-bar").css("width",  tempIntValue + "%").attr("aria-valuenow", tempIntValue + "%");
-      // update label
-      $("#"+tr_id + " .info").html(sensor['type_translated'] + " " + sensor['device_seq'] + " <small>("+sensor['device']+")<small>");
-    });
-  }
+    'use strict';
+
+    function thermal_sensors_widget_update(sender, data) {
+        let firstCore = true;
+        data.map(function (sensor) {
+            // Skip if the user only wants one core temperature and we have already showed one.
+            if (sensor['type'] === 'core' && $('#thermal_sensors_widget_show_one_core_temp').attr('checked') === 'checked')
+            {
+                if (!firstCore) {
+                    return;
+                }
+                firstCore = false;
+            }
+
+            const tr_id = "thermal_sensors_widget_" + sensor['device'].replace(/\./g, '_');
+
+            let tbody = sender.find('tbody');
+            if (tbody.find('#' + tr_id).length === 0) {
+                let tr = $('<tr>');
+                tr.attr('id', tr_id);
+
+                let td = $('<td>');
+                td.html($('#thermal_sensors_widget_progress_bar').html());
+
+                tr.append(td);
+                tbody.append(tr);
+            }
+
+            // probe warning / danger temp
+            let danger_temp, warning_temp;
+            if (sensor['type'] === 'core') {
+                danger_temp = parseInt($('#thermal_sensors_widget_core_critical_threshold').val());
+                warning_temp = parseInt($('#thermal_sensors_widget_core_warning_threshold').val());
+            } else {
+                danger_temp = parseInt($('#thermal_sensors_widget_zone_critical_threshold').val());
+                warning_temp = parseInt($('#thermal_sensors_widget_zone_warning_threshold').val());
+            }
+
+            // progress bar style
+            let progressBar = $('#' + tr_id + ' .progress-bar');
+            const tempIntValue = parseInt(sensor['temperature']);
+            if (tempIntValue > danger_temp) {
+                progressBar.removeClass('progress-bar-success')
+                    .removeClass('progress-bar-warning')
+                    .removeClass('progress-bar-danger')
+                    .addClass('progress-bar-danger');
+            } else if (tempIntValue > warning_temp) {
+                progressBar.removeClass('progress-bar-success')
+                    .removeClass('progress-bar-warning')
+                    .removeClass('progress-bar-danger')
+                    .addClass('progress-bar-warning');
+            } else {
+                progressBar.removeClass('progress-bar-success')
+                    .removeClass('progress-bar-warning')
+                    .removeClass('progress-bar-danger')
+                    .addClass('progress-bar-success');
+            }
+            // update bar
+            progressBar.html(sensor['temperature'] + ' &deg;C');
+            progressBar.css("width", tempIntValue + "%").attr("aria-valuenow", tempIntValue + "%");
+
+            // update label
+            $('#' + tr_id + ' .info').html(sensor['type_translated'] + ' ' + sensor['device_seq'] + ' <small>(' + sensor['device'] + ')<small>');
+        });
+    }
 </script>
 
 <div id="thermal_sensors-settings" class="widgetconfigdiv" style="display:none;">
@@ -142,6 +172,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
             <input type="text" id="thermal_sensors_widget_core_critical_threshold" name="thermal_sensors_widget_core_critical_threshold" value="<?= $pconfig['thermal_sensors_widget_core_critical_threshold']; ?>" />
           </td>
         </tr>
+        <tr>
+            <td colspan="2">
+                <input type="checkbox" id="thermal_sensors_widget_show_one_core_temp" name="thermal_sensors_widget_show_one_core_temp" <?=$pconfig['thermal_sensors_widget_show_one_core_temp'] ? 'checked="checked"' : ''; ?>/>
+                <?= gettext('Show only one CPU core temperature') ?>
+            </td>
+        </tr>
         <tr>
           <td colspan="2">
             <input type="submit" id="thermal_sensors_widget_submit" name="thermal_sensors_widget_submit" class="btn btn-primary formbtn" value="<?= gettext('Save') ?>" />