diff --git a/meshtastic/mesh.proto b/meshtastic/mesh.proto
index b10c780..2660ae5 100644
--- a/meshtastic/mesh.proto
+++ b/meshtastic/mesh.proto
@@ -810,6 +810,11 @@ enum HardwareModel {
    */
   T_WATCH_ULTRA = 114;
 
+  /*
+   * Elecrow ThinkNode M3
+   */
+  THINKNODE_M3 = 115;
+
   /*
    * ------------------------------------------------------------------------------------------------------------------------------------------
    * 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.