diff --git a/Level.md b/Level.md
index 9f9a670..2924509 100644
--- a/Level.md
+++ b/Level.md
@@ -25,5 +25,5 @@ The level app is as simple as possible and allow you to monitor available level
 
 # Graphs
 
-* RSSI min, average, max => blue, white and red lines
+* RSSI min, average, max => blue, white and red lines clipped between [ 31, 170 ] and scaled along the height of the RSSIGraph widget
 * POWER => green line, clipped between [ -100 , +20 ] and scaled along the height of the RSSIGraph widget
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