diff --git a/devices/tst.properties b/devices/tst.properties
index 01276595..f8241dbd 100644
--- a/devices/tst.properties
+++ b/devices/tst.properties
@@ -1,5 +1,5 @@
-#Tue Mar 27 15:00:25 CEST 2018
+#Tue Mar 27 15:00:42 CEST 2018
 offset=0.0
-precision=4
+precision=13
 scale=1.0
 unit=A