diff --git a/src/main/java/cn/lihongjie/coal/weightDevice/entity/WeightDeviceEntity.java b/src/main/java/cn/lihongjie/coal/weightDevice/entity/WeightDeviceEntity.java
index 5d996b11..342b704f 100644
--- a/src/main/java/cn/lihongjie/coal/weightDevice/entity/WeightDeviceEntity.java
+++ b/src/main/java/cn/lihongjie/coal/weightDevice/entity/WeightDeviceEntity.java
@@ -28,4 +28,13 @@ public class WeightDeviceEntity extends OrgCommonEntity {
 
     @ElementCollection
     private List<ReserveFieldConfig> reserveFieldConfigList;
+
+    @Override
+    public String toString() {
+
+        // display name and code with class name prefix
+
+        return "WeightDeviceEntity(" + "location=" + this.getLocation() + ")";
+
+    }
 }