diff --git a/lib/core/models/check_item.dart b/lib/core/models/check_item.dart
index 6e2125c..1793081 100644
--- a/lib/core/models/check_item.dart
+++ b/lib/core/models/check_item.dart
@@ -3,7 +3,8 @@ class CheckItem {
   final num cnt;
   final num price;
   final int articul;
-  CheckItem({this.name, this.cnt, this.price, this.articul});
+  final String excise;
+  CheckItem({this.name, this.cnt, this.price, this.articul, this.excise});
 
   static CheckItem fromJson(Map<String, dynamic> json) {
     return CheckItem(
@@ -11,6 +12,7 @@ class CheckItem {
         cnt: json['cnt'],
         price: json['price'],
         articul: json['articul'],
+        excise: json['excise'],
     );
   }
   Map<String, dynamic> toJson() =>
@@ -18,6 +20,7 @@ class CheckItem {
         'name': name,
         'cnt': cnt,
         'price': price,
-        'articul': articul
+        'articul': articul,
+        'excise' : excise
       };
 }
\ No newline at end of file
diff --git a/lib/core/models/product_dao.dart b/lib/core/models/product_dao.dart
index 8885b86..2e7dd26 100644
--- a/lib/core/models/product_dao.dart
+++ b/lib/core/models/product_dao.dart
@@ -8,8 +8,9 @@ class ProductDao {
   num total;
   final Good good;
   final Service service;
+  final String excise;
 
 
-  ProductDao( {this.name, this.price, this.count, this.total, this.good, this.service });
+  ProductDao( {this.name, this.price, this.count, this.total, this.good, this.service, this.excise });
 
 }
\ No newline at end of file
diff --git a/lib/core/services/DataService.dart b/lib/core/services/DataService.dart
index 6385a54..5f84729 100644
--- a/lib/core/services/DataService.dart
+++ b/lib/core/services/DataService.dart
@@ -62,7 +62,9 @@ class DataService extends BaseService {
           name: el.name ?? 'Позиция №$iterator',
           cnt: el.count,
           price: el.price,
-          articul: articul));
+          articul: articul,
+          excise: el.excise,
+      ));
       summ += el.total;
       iterator++;
     });
diff --git a/lib/redux/actions/kassa_actions.dart b/lib/redux/actions/kassa_actions.dart
index 0d797fc..56795cb 100644
--- a/lib/redux/actions/kassa_actions.dart
+++ b/lib/redux/actions/kassa_actions.dart
@@ -43,15 +43,15 @@ ThunkAction<AppState> addCustomProductToKassaItems(String name, int count, doubl
 }
 
 
-ThunkAction<AppState> addProductToKassaItems(Good good) {
+ThunkAction<AppState> addProductToKassaItems(Good good, String excise) {
   return (Store<AppState> store) async {
     List<ProductDao> items = store.state.kassaState.kassaItems;
-    int index = items.indexWhere((element) => element.good?.id == good.id);
-    if (index > -1) {
+    int index = items.indexWhere((element) => element.excise == null && element.good?.id == good.id);
+    if (index > -1 && excise == null) {
       store.dispatch(counterProductFromKassaItems(index, 1));
     } else {
       items.add(new ProductDao(
-          name: good.name, good: good, count: 1, price: good.price, total: good.price));
+          name: good.name, good: good, count: 1, price: good.price, total: good.price, excise: excise));
       store.dispatch(SetKassaStateAction(KassaState(kassaItems: items)));
     }
   };
diff --git a/lib/test/foo.dart b/lib/test/foo.dart
new file mode 100644
index 0000000..47ce671
--- /dev/null
+++ b/lib/test/foo.dart
@@ -0,0 +1,11 @@
+// Define a function.
+void printInteger(int aNumber) {
+  print('The number is $aNumber.'); // Print to console.
+}
+
+// This is where the app starts executing.
+void main() {
+  String dataMatrix = "00000046208262nZ2qnLHODVFWktT";
+  String numberText = dataMatrix.replaceAll(RegExp("[a-zA-Z]"), '');
+  print(int.parse(numberText));
+}
\ No newline at end of file
diff --git a/lib/views/home/tabs/KassaTab.dart b/lib/views/home/tabs/KassaTab.dart
index bb88b8d..096c09d 100644
--- a/lib/views/home/tabs/KassaTab.dart
+++ b/lib/views/home/tabs/KassaTab.dart
@@ -189,25 +189,43 @@ class KassaTab extends StatelessWidget {
         "flash_off": 'Выкл фонарик',
       });
       var result = await BarcodeScanner.scan(options: options);
-//       print(result.type); // The result type (barcode, cancelled, failed)
-//       print(result.rawContent); // The barcode content
-//       print(result.format); // The barcode format (as enum)
-//       print(result.formatNote); // If a unknown format was scanned this field contains a note
-      if (result.type == ResultType.Barcode &&
-          (result.format == BarcodeFormat.ean13 ||
-              result.format == BarcodeFormat.ean8)) {
-        String barcode = result.rawContent;
-        List<Good> goods =
-            await _dataService.getGoodsByBarcode(barcode: barcode);
-        if (goods != null && goods.isNotEmpty) {
-          Redux.store.dispatch(addProductToKassaItems(goods.first));
-        } else {
-          _dialogService.showDialog(
-              description: 'Товар не найден: ${result.rawContent}');
+      // print(result.type); // The result type (barcode, cancelled, failed)
+      // print(result.rawContent); // The barcode content
+      // print(result.format); // The barcode format (as enum)
+      // print(result.formatNote); // If a unknown format was scanned this field contains a note
+      // print(result.rawContent); // content
+      if (result.type == ResultType.Barcode ) {
+        String barcode;
+        String dataMatrix;
+        if(result.format == BarcodeFormat.ean13 || result.format == BarcodeFormat.ean8) {
+          barcode = result.rawContent;
+        } else if( result.format == BarcodeFormat.dataMatrix ) {
+          dataMatrix = result.rawContent;
+          if(dataMatrix!= null && dataMatrix.length >15) {
+            try {
+              String numberText = dataMatrix.substring(0, dataMatrix.length - 15 ).replaceAll(RegExp("[a-zA-Z]"), '');
+              barcode = int.parse(numberText).toString();
+            } catch (e) {
+
+            }
+          }
+          // 00000046208262 nZ2qnLH ODVFWktT
+          // 00000046208262 tjKDqfu UzVSeFE5
         }
-      } else if (result.type == ResultType.Error) {
-        _dialogService.showDialog(description: 'Не верный формат QR кода');
-      }
+
+        if(barcode != null) {
+          List<Good> goods =
+              await _dataService.getGoodsByBarcode(barcode: barcode);
+          if (goods != null && goods.isNotEmpty) {
+            Redux.store.dispatch(addProductToKassaItems(goods.first, dataMatrix));
+          } else {
+            _dialogService.showDialog(
+                description: 'Товар не найден: $barcode');
+          }
+        } else if (result.type == ResultType.Error) {
+          _dialogService.showDialog(description: 'Не верный формат QR кода');
+        }
+    }
     } on PlatformException catch (e) {
       var result = ScanResult.create();
       result.type = ResultType.Error;
diff --git a/lib/views/home/tabs/kassaView/CatalogBottomSheet.dart b/lib/views/home/tabs/kassaView/CatalogBottomSheet.dart
index f7929a0..664a006 100644
--- a/lib/views/home/tabs/kassaView/CatalogBottomSheet.dart
+++ b/lib/views/home/tabs/kassaView/CatalogBottomSheet.dart
@@ -95,7 +95,7 @@ class CatalogBottomSheet extends StatelessWidget {
                                     .dispatch(selectBottomElement(el.id));
                               } else if (el is Good) {
                                 await Redux.store
-                                    .dispatch(addProductToKassaItems(el));
+                                    .dispatch(addProductToKassaItems(el, null));
                                 Navigator.pop(context);
                               } else if (el is Service) {
                                 await Redux.store
diff --git a/lib/widgets/components/ProductListItem.dart b/lib/widgets/components/ProductListItem.dart
index 677f8ec..5a5b35a 100644
--- a/lib/widgets/components/ProductListItem.dart
+++ b/lib/widgets/components/ProductListItem.dart
@@ -52,16 +52,25 @@ class ProductListItem extends StatelessWidget {
                   Expanded(
                     flex: 1,
                     child: Container(
-                        //margin: const EdgeInsets.symmetric(horizontal: 4),
+                        margin: const EdgeInsets.symmetric(horizontal: 4),
                         child: Row(
                       children: <Widget>[
-                        buildClipRect(primaryColor, Icons.edit, () {
-                          editCountForm(context, item.count);
-                        }),
-//                        buildClipRect(primaryColor, Icons.add, () {
-//                          Redux.store
-//                              .dispatch(counterProductFromKassaItems(index, 1));
-//                        }),
+                        // buildClipRect(primaryColor, Icons.edit, () {
+                        //   editCountForm(context, item.count);
+                        // }),
+                        if(item.excise == null)
+                          buildClipRect(primaryColor, Icons.remove, () {
+                            Redux.store
+                                .dispatch(
+                                counterProductFromKassaItems(index, -1));
+                          }),
+                        if(item.excise == null)
+                          buildClipRect(primaryColor, Icons.add, () {
+                            Redux.store
+                                .dispatch(
+                                counterProductFromKassaItems(index, 1));
+                          }),
+
                         Expanded(
                           child: Container(),
                         ),
diff --git a/pubspec.lock b/pubspec.lock
new file mode 100644
index 0000000..e5e4568
--- /dev/null
+++ b/pubspec.lock
@@ -0,0 +1,558 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.5.0-nullsafety.1"
+  auto_size_text:
+    dependency: "direct main"
+    description:
+      name: auto_size_text
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  barcode_scan:
+    dependency: "direct main"
+    description:
+      name: barcode_scan
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0-nullsafety.1"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0-nullsafety.3"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0-nullsafety.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0-nullsafety.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.15.0-nullsafety.3"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.5"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  device_info:
+    dependency: "direct main"
+    description:
+      name: device_info
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.2+10"
+  device_info_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  equatable:
+    dependency: "direct main"
+    description:
+      name: equatable
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.5"
+  esys_flutter_share:
+    dependency: "direct main"
+    description:
+      name: esys_flutter_share
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0-nullsafety.1"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.2.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.11"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_redux:
+    dependency: "direct main"
+    description:
+      name: flutter_redux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.0"
+  flutter_screenutil:
+    dependency: "direct main"
+    description:
+      name: flutter_screenutil
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.1"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  get_it:
+    dependency: "direct main"
+    description:
+      name: get_it
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.4"
+  google_fonts:
+    dependency: "direct main"
+    description:
+      name: google_fonts
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.4"
+  intl:
+    dependency: "direct main"
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
+  logger:
+    dependency: "direct main"
+    description:
+      name: logger
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.4"
+  mask_text_input_formatter:
+    dependency: "direct main"
+    description:
+      name: mask_text_input_formatter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.10-nullsafety.1"
+  material_design_icons_flutter:
+    dependency: "direct main"
+    description:
+      name: material_design_icons_flutter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.5855"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0-nullsafety.3"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0-nullsafety.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.27"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+2"
+  path_provider_macos:
+    dependency: transitive
+    description:
+      name: path_provider_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4+8"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4+3"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.2"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.1"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.13"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.3.2+4"
+  qr:
+    dependency: transitive
+    description:
+      name: qr
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
+  qr_flutter:
+    dependency: "direct main"
+    description:
+      name: qr_flutter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.0"
+  redux:
+    dependency: "direct main"
+    description:
+      name: redux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0+3"
+  redux_persist:
+    dependency: "direct main"
+    description:
+      name: redux_persist
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.8.4"
+  redux_persist_flutter:
+    dependency: "direct main"
+    description:
+      name: redux_persist_flutter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.8.3"
+  redux_thunk:
+    dependency: "direct main"
+    description:
+      name: redux_thunk
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.0"
+  responsive_builder:
+    dependency: "direct main"
+    description:
+      name: responsive_builder
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0+2"
+  shared_preferences:
+    dependency: transitive
+    description:
+      name: shared_preferences
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.12+4"
+  shared_preferences_linux:
+    dependency: transitive
+    description:
+      name: shared_preferences_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.2+4"
+  shared_preferences_macos:
+    dependency: transitive
+    description:
+      name: shared_preferences_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+11"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2+7"
+  shared_preferences_windows:
+    dependency: transitive
+    description:
+      name: shared_preferences_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+3"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0-nullsafety.2"
+  sqflite:
+    dependency: "direct main"
+    description:
+      name: sqflite
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.2+2"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.10.0-nullsafety.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0-nullsafety.1"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0-nullsafety.1"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0+2"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0-nullsafety.1"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.19-nullsafety.2"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0-nullsafety.3"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.7.10"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+4"
+  url_launcher_macos:
+    dependency: transitive
+    description:
+      name: url_launcher_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+9"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.9"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5+1"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+3"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0-nullsafety.3"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.4"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
+sdks:
+  dart: ">=2.10.2 <2.11.0"
+  flutter: ">=1.22.2 <2.0.0"