diff --git a/meshtastic/mesh.proto b/meshtastic/mesh.proto
index ea183b8..03162d8 100644
--- a/meshtastic/mesh.proto
+++ b/meshtastic/mesh.proto
@@ -754,6 +754,11 @@ enum HardwareModel {
    */
   T_LORA_PAGER = 103;
 
+  /**
+   * GAT562 Mesh Trial Tracker
+   */
+  GAT562_MESH_TRIAL_TRACKER = 104;
+
   /*
    * ------------------------------------------------------------------------------------------------------------------------------------------
    * Reserved ID For developing private Ports. These will show up in live traffic sparsely, so we can use a high number. Keep it within 8 bits.