diff --git a/Backend/Views/DeviceManage/Index.cshtml b/Backend/Views/DeviceManage/Index.cshtml
index 20b8c0a..0901119 100644
--- a/Backend/Views/DeviceManage/Index.cshtml
+++ b/Backend/Views/DeviceManage/Index.cshtml
@@ -2951,9 +2951,14 @@
                 return;
             }
 
-            if ($("#device_normal_point_value_modal").val() == $("#device_close_point_value_modal").val()) {
-                toast_warning("點位值設定重複，請修改");
-                return;
+            var normalValue = $("#device_normal_point_value_modal").val();
+            var closeValue = $("#device_close_point_value_modal").val();
+
+            if (normalValue != "" && closeValue != "" && normalValue != null && closeValue != null) {
+                if (normalValue == closeValue) {
+                    toast_warning("點位值設定重複，請修改");
+                    return;
+                }
             }
 
             if ($("#device-kind-form").valid()) {