diff --git a/bot.sh b/bot.sh
index dfaeba9..9b82a74 100755
--- a/bot.sh
+++ b/bot.sh
@@ -19,9 +19,19 @@ if [ "$notrunning" != "" ]; then
 	send "warnung%20the%20following%20services%20are%20not%20running%20$notrunning"
 fi
 
+#cpu usage
 . cpu.sh
 cpu=$(cpuUsage)
 if [ "$cpu" -gt "$cpulimit" ]; then
 	echo "cpu limit!"
  	send "warnung%20CPU%20Usage%20is%20high%20$cpu"
 fi
+
+#mem usage
+. mem.sh
+mem=$(memUsage)
+if [ "$mem" -gt "$memlimit" ]; then
+	echo "mem limit!"
+	send "warnung%20Memory%20Usage%20is%20high%20$mem%25"
+fi
+
diff --git a/config.sh b/config.sh
index 284e106..6b58210 100755
--- a/config.sh
+++ b/config.sh
@@ -15,3 +15,5 @@ hddlimit="50"
 
 #harddrive
 hdd="/dev/sda1"
+
+memlimit="90"
diff --git a/mem.sh b/mem.sh
new file mode 100755
index 0000000..5cb0ad9
--- /dev/null
+++ b/mem.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+function memUsage {
+	top -bn1 | sed -n 4p | awk '{ print int( $6 / $4 * 100) }'
+}