diff --git a/app/Models/Item.php b/app/Models/Item.php
index 8a2090f..378e3aa 100644
--- a/app/Models/Item.php
+++ b/app/Models/Item.php
@@ -91,11 +91,22 @@ class Item extends Model
 
     public function tempClassCharacteristics()
     {
-        return $this->hasMany(TempClassCharacteristic::class, 'plant_id', 'id');
+        return $this->hasMany(TempClassCharacteristic::class, 'item_id', 'id');
     }
 
     public function weightValidations()
     {
         return $this->hasMany(WeightValidation::class);
     }
+
+    public function locatorValidations()
+    {
+        return $this->hasMany(LocatorValidation::class, 'item_id', 'id');
+    }
+
+    public function panelGrMasters()
+    {
+        return $this->hasMany(PanelGrMaster::class, 'item_id', 'id');
+    }
+
 }