diff --git a/libraries/chart/pChart/pChart.class b/libraries/chart/pChart/pChart.class
index 6298c595c..361265306 100644
--- a/libraries/chart/pChart/pChart.class
+++ b/libraries/chart/pChart/pChart.class
@@ -2213,12 +2213,17 @@
            $vecLength = sqrt($vecX * $vecX + $vecY * $vecY);
            $vecX = $vecX / $vecLength;
            $vecY = $vecY / $vecLength;
+
+           $tooltipValue = '';
+           foreach ($DataDescription['Description'] as $key => $value) {
+               $tooltipValue .= $value.':'.sprintf("%.2f", $Data[$i][$key]).' ';
+           }
            
            $offset = 10;
-           $this->addPointToImageMap($X+$vecX*-$offset,$Y+$vecY*-$offset,$Label,'Value','Radar');
-           $this->addPointToImageMap($X+$vecX*+$offset,$Y+$vecY*+$offset,$Label,'Value','Radar');
-           $this->addPointToImageMap($XCenter+$vecX*+$offset,$YCenter+$vecY*+$offset,$Label,'Value','Radar');
-           $this->addPointToImageMap($XCenter+$vecX*-$offset,$YCenter+$vecY*-$offset,$Label,'Value','Radar');
+           $this->addPointToImageMap($X+$vecX*-$offset,$Y+$vecY*-$offset,$Label,$tooltipValue,'Radar');
+           $this->addPointToImageMap($X+$vecX*+$offset,$Y+$vecY*+$offset,$Label,$tooltipValue,'Radar');
+           $this->addPointToImageMap($XCenter+$vecX*+$offset,$YCenter+$vecY*+$offset,$Label,$tooltipValue,'Radar');
+           $this->addPointToImageMap($XCenter+$vecX*-$offset,$YCenter+$vecY*-$offset,$Label,$tooltipValue,'Radar');
           }
         }
       }
diff --git a/tbl_chart.php b/tbl_chart.php
index a0fdfb828..8a86431e9 100644
--- a/tbl_chart.php
+++ b/tbl_chart.php
@@ -151,6 +151,14 @@ $url_params['reload'] = 1;
         </td>
     </tr>
     <?php } ?>
+
+    <?php if ($chartSettings['type'] == 'radar') { ?>
+    <tr><td colspan="2">
+        <p>
+        When drawing a radar chart all values are normalized to a range [0..10].
+        </p>
+    </td></tr>
+    <?php } ?>
     
     </table>