diff --git a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/BluetoothServices.java b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/BluetoothServices.java
index d8a7ae62b0..00fbfc1415 100644
--- a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/BluetoothServices.java
+++ b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/BluetoothServices.java
@@ -33,6 +33,8 @@ public class BluetoothServices {
     //CharacteristicDescriptorUUID
     public static final UUID CharacteristicUpdateNotification = UUID.fromString("00002902-0000-1000-8000-00805F9B34FB");
 
+    public static final UUID Mask16 = UUID.fromString("0000FFFF-0000-0000-0000-000000000000");
+
     private static final HashMap<UUID, String> mapToName = new HashMap<>();