diff --git a/devices/prigo_x.properties b/devices/prigo_x.properties
index 0669a24..6993883 100644
--- a/devices/prigo_x.properties
+++ b/devices/prigo_x.properties
@@ -1,6 +1,6 @@
-#Fri Nov 20 16:37:06 CET 2015
+#Mon Nov 23 09:39:39 CET 2015
 maxValue=0.0
-minValue=0.0
+minValue=-30.0
 offset=0.0
 precision=3
 resolution=NaN