diff --git a/system_monitor/readme.txt b/system_monitor/readme.txt
index 59a6f468..8e84f67c 100644
--- a/system_monitor/readme.txt
+++ b/system_monitor/readme.txt
@@ -21,3 +21,7 @@ None
 Application Purpose
 ===================
 Get various system diagnostics, alert on thresholds, and put current status in asset_id field
+
+Monitors CPU, memory, uptime, ethernet port status (including LAN) and alerts at 80% CPU, 80% memory, and on ethernet port status change.
+
+Blocks of code show examples for monitoring parameters so you can write your own.