diff --git a/HB-UNI-Sen-TEMP-MAX6675/HB-UNI-Sen-TEMP-MAX6675.ino b/HB-UNI-Sen-TEMP-MAX6675/HB-UNI-Sen-TEMP-MAX6675.ino
index bfe6394..1a2b4d5 100644
--- a/HB-UNI-Sen-TEMP-MAX6675/HB-UNI-Sen-TEMP-MAX6675.ino
+++ b/HB-UNI-Sen-TEMP-MAX6675/HB-UNI-Sen-TEMP-MAX6675.ino
@@ -86,7 +86,7 @@ class WeatherChannel : public Channel<Hal, List1, EmptyList, List4, PEERS_PER_CH
       clock.add(*this);
       sensOK = max6675.measure();
 
-      msg.init(device().nextcount(), max6675.temperature(), false);
+      msg.init(device().nextcount(), sensOK ? max6675.temperature() : -10, false);
 
       device().broadcastEvent(msg);