diff --git a/app/Filament/Exports/ClassCharacteristicExporter.php b/app/Filament/Exports/ClassCharacteristicExporter.php
index 53d3dc8..09870de 100644
--- a/app/Filament/Exports/ClassCharacteristicExporter.php
+++ b/app/Filament/Exports/ClassCharacteristicExporter.php
@@ -298,6 +298,8 @@ class ClassCharacteristicExporter extends Exporter
                 ->label('ZMM MOTOR SPEED'),
             ExportColumn::make('zqmm_qty')
                 ->label('ZQMM QTY'),
+            ExportColumn::make('zmm_operating_temperature')
+                ->label('ZMM OPERATING TEMPERATURE'),
             ExportColumn::make('mark_status')
                 ->label('MARKED STATUS'),
             ExportColumn::make('marked_datetime')
diff --git a/app/Filament/Imports/ClassCharacteristicImporter.php b/app/Filament/Imports/ClassCharacteristicImporter.php
index 9c03cbc..abc8252 100644
--- a/app/Filament/Imports/ClassCharacteristicImporter.php
+++ b/app/Filament/Imports/ClassCharacteristicImporter.php
@@ -575,6 +575,10 @@ class ClassCharacteristicImporter extends Importer
                 ->label('ZQMM QTY')
                 ->exampleHeader('ZQMM QTY')
                 ->example(''),
+            ImportColumn::make('zmm_operating_temperature')
+                ->label('ZMM OPERATING TEMPERATURE')
+                ->exampleHeader('ZMM OPERATING TEMPERATURE')
+                ->example(''),
             ImportColumn::make('mark_status')
                 ->label('MARKED STATUS')
                 ->exampleHeader('MARKED STATUS')
diff --git a/app/Filament/Resources/ClassCharacteristicResource.php b/app/Filament/Resources/ClassCharacteristicResource.php
index d8b68da..a907dee 100644
--- a/app/Filament/Resources/ClassCharacteristicResource.php
+++ b/app/Filament/Resources/ClassCharacteristicResource.php
@@ -968,6 +968,12 @@ class ClassCharacteristicResource extends Resource
                             ->afterStateUpdated(function (callable $set) {
                                 $set('updated_by', Filament::auth()->user()?->name);
                             }),
+                        Forms\Components\TextInput::make('zmm_operating_temperature')
+                            ->label('ZMM OPERATING TEMPERATURE')
+                            ->reactive()
+                            ->afterStateUpdated(function (callable $set) {
+                                $set('updated_by', Filament::auth()->user()?->name);
+                            }),
                         Forms\Components\TextInput::make('mark_status')
                             ->label('MARKED STATUS')
                             ->reactive()
@@ -1804,6 +1810,10 @@ class ClassCharacteristicResource extends Resource
                     ->label('ZQMM QTY')
                     ->alignCenter()
                     ->sortable(),
+                Tables\Columns\TextColumn::make('zmm_operating_temperature')
+                    ->label('ZMM OPERATING TEMPERATURE')
+                    ->alignCenter()
+                    ->sortable(),
                 Tables\Columns\TextColumn::make('mark_status')
                     ->label('MARKED STATUS')
                     ->alignCenter()
diff --git a/app/Models/ClassCharacteristic.php b/app/Models/ClassCharacteristic.php
index b2c1a43..03221f0 100644
--- a/app/Models/ClassCharacteristic.php
+++ b/app/Models/ClassCharacteristic.php
@@ -152,6 +152,7 @@ class ClassCharacteristic extends Model
         'zmm_motor_heading',
         'zmm_motor_speed',
         'zqmm_qty',
+        'zmm_operating_temperature',
         'mark_status',
         'marked_datetime',
         'marked_physical_count',
diff --git a/database/migrations/2026_06_01_172108_add_zmm_operating_temperature_to_class_characteristics.php b/database/migrations/2026_06_01_172108_add_zmm_operating_temperature_to_class_characteristics.php
new file mode 100644
index 0000000..1d11f93
--- /dev/null
+++ b/database/migrations/2026_06_01_172108_add_zmm_operating_temperature_to_class_characteristics.php
@@ -0,0 +1,31 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql1 = <<<'SQL'
+        ALTER TABLE class_characteristics
+        ADD COLUMN zmm_operating_temperature TEXT DEFAULT NULL
+        SQL;
+
+        DB::statement($sql1);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('class_characteristics', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};