diff --git a/polybar/scripte/nightscout_cgm.sh b/polybar/scripte/nightscout_cgm.sh
index 1ebc2eb..1c59c11 100755
--- a/polybar/scripte/nightscout_cgm.sh
+++ b/polybar/scripte/nightscout_cgm.sh
@@ -1,7 +1,25 @@
 #!/bin/bash
-curl -s -X GET "https://nightscout.mgrote.net/api/v1/entries/sgv?count=1&token=polybar-ae6fe2720f2c30f4" > /dev/null
+api_url=$(curl -s -X GET "https://nightscout.mgrote.net/api/v1/entries/sgv?count=1&token=polybar-ae6fe2720f2c30f4")
+#echo $api_url
+symbol=$(echo  $api_url | awk '{print $4}')
+#echo $symbol
+wert=$(echo $api_url | awk '{printf "%.1f\n",$3*0.0555}')
+#echo $wert
+
 if [ $? -ne 0 ]; then
     echo "---"
 else
-    curl -s -X GET "https://nightscout.mgrote.net/api/v1/entries/sgv?count=1&token=polybar-ae6fe2720f2c30f4" | awk '{printf "%.1f\n",$3*0.0555}'
+   case  $symbol  in
+        '"Flat"')
+            echo $wert "="
+            ;;
+        '"FortyFiveDown"')
+            echo $wert "-"
+            ;;
+
+        *)
+            echo $symbol
+            ;;
+    esac
 fi
+