diff --git a/DOSPORTAL/models.py b/DOSPORTAL/models.py
index 9d771bc..b8a25cc 100644
--- a/DOSPORTAL/models.py
+++ b/DOSPORTAL/models.py
@@ -249,6 +249,9 @@ def __str__(self) -> str:
     def description_formatted(self):
         return markdownify(self.description)
 
+    @property
+    def formatted_label(self):
+        return f"""<a class='btn btn-sm btn-info' href='{self.get_absolute_url()}'> <i class='bi bi-cpu-fill'></i> {self.name}</a>"""
 
 
 
diff --git a/DOSPORTAL/signals.py b/DOSPORTAL/signals.py
index 5c744f3..833289d 100644
--- a/DOSPORTAL/signals.py
+++ b/DOSPORTAL/signals.py
@@ -92,7 +92,8 @@ def save_record(sender, instance, created = None, **kwargs):
         new_columns = ['time'] + list(range(df_spectrum.shape[1] - 1))
         df_spectrum.columns = new_columns
 
-        duration = df_spectrum['time'].max()
+        df_spectrum['time'] = df_spectrum['time'].astype(float)
+        duration = df_spectrum['time'].max() - df_spectrum['time'].min()
         instance.record_duration = datetime.timedelta(seconds=float(duration))
 
         new_name = instance.user_directory_path_data('pk')
diff --git a/DOSPORTAL/templates/detectors/detectors_detail.html b/DOSPORTAL/templates/detectors/detectors_detail.html
index 406b43c..5039f97 100644
--- a/DOSPORTAL/templates/detectors/detectors_detail.html
+++ b/DOSPORTAL/templates/detectors/detectors_detail.html
@@ -27,16 +27,19 @@
     </div>
     {%endif%}
 <ul>
-  <li><strong>Serial number:</strong> {{ detector.sn }}</a>
-  <li><strong>Type:</strong> <a href="/detector_type/{{ detector.type.id }}/">{{ detector.type }}</a>
-  <li><strong>Advanced metadata:</strong></li>
+  <li><strong>Serial number:</strong> <span class="btn btn-sm btn-outline-success">{{detector.sn}}</span></a>
+  <li><strong>Type:</strong> {{ detector.type.formatted_label|safe }}</a>
+  {% comment %}<li><strong>Advanced metadata:</strong></li> {% endcomment}
   <span class="ml-3">{{detector.data}}</span>
-  <li><strong>Measurements conducted with this detector:</strong>
-    <ul>
-    {%for record in detector.records.all %}
-      <li> <a href="/measurement/{{ record.measurement.id }}/">{{ record.measurement }}</a>
-    {%endfor%}
-    </ul>
+  
+  {% comment %}
+    <li><strong>Measurements conducted with this detector:</strong>
+      <ul>
+      {%for record in detector.records.all %}
+        <li> <a href="/measurement/{{ record.measurement.id }}/">{{ record.measurement }}</a>
+      {%endfor%}
+      </ul>
+  {% endcomment %}
   
     <li><strong>Records created with this detector:</strong>
       <ul>
diff --git a/DOSPORTAL/templates/organizations/organization_profile.html b/DOSPORTAL/templates/organizations/organization_profile.html
index 1224f1f..5c57843 100644
--- a/DOSPORTAL/templates/organizations/organization_profile.html
+++ b/DOSPORTAL/templates/organizations/organization_profile.html
@@ -19,8 +19,6 @@
 {% endfor %}
 </div>
 
-
-
 </div>
 
 <hr>
@@ -31,6 +29,8 @@ <h2>Detectors</h2>
 
 <a href="{% url 'detector-view' pk=detector.pk %}"> {{detector}}</a> <br>
 {% endfor %}
+
+{% comment %}
 <hr>
 <h2>Maintainer of detectors:</h2>
 
@@ -39,6 +39,7 @@ <h2>Maintainer of detectors:</h2>
 <h2>Author of measurements</h2>
 
 TODO:
+{% endcomment %}
 
 
 
diff --git a/DOSPORTAL/templates/records/record_detail.html b/DOSPORTAL/templates/records/record_detail.html
index 6b2bdc6..e89359c 100644
--- a/DOSPORTAL/templates/records/record_detail.html
+++ b/DOSPORTAL/templates/records/record_detail.html
@@ -56,12 +56,13 @@
                 <td class="">{{record.log_original_filename}} ({{ record.log_file | filesize_mb }})</td>
                 {% if record.description|length > 1 %}<tr>
                     <td class="w-auto">Description:</td>
-                    <td class=""><div class="callout m-0 p-2">{{record.formatted_markdown | safe }}</div></td>
+                    <td class=""><div class="callout m-0 p-2">{{record.formatted_markdown }}</div></td>
                 </tr> {% endif %}
                 </tr>
                 {% if record.metadata|length > 4 %} <tr>
                 <td class="w-auto">Advanced metadata:</td>
-                <td class=""><div class="callout m-0 p-2" style="max-height: 200pt;overflow-y: auto;"><code>{{record.metadata}})</code></div></td>
+                
+                <td class=""><div class="callout m-0 p-2" style="max-height: 200pt;overflow-y: auto;"><code>{{record.metadata|pretty_json|safe }})</code></div></td>
                 </tr> {% endif %}
             </tbody>
           </table>
diff --git a/DOSPORTAL/templatetags/filters.py b/DOSPORTAL/templatetags/filters.py
index 18667bf..3e56260 100644
--- a/DOSPORTAL/templatetags/filters.py
+++ b/DOSPORTAL/templatetags/filters.py
@@ -1,4 +1,5 @@
 from django import template
+import json
 
 register = template.Library()
 
@@ -6,3 +7,12 @@
 def filesize_mb(value):
     """Převede velikost souboru na megabajty."""
     return f"{value.size / (1024 * 1024):.2f} MB"
+
+@register.filter(name='pretty_json')
+def pretty_json(value):
+    val = json.loads(value)
+    val = json.dumps(val, indent=4, ensure_ascii=False, sort_keys=True)
+    val = val.replace(' ', '&nbsp;')
+    val = val.replace('\n', '<br>')
+
+    return val
\ No newline at end of file