diff --git a/source/app/models/db.py b/source/app/models/db.py
index bd11c19..ff69824 100644
--- a/source/app/models/db.py
+++ b/source/app/models/db.py
@@ -110,6 +110,9 @@ class StorageEngine(object):
     def _get_statussat(self, values):
         return main.Facturas.get_status_sat(values['id'])
 
+    def _get_verifysat(self, values):
+        return main.Facturas.get_verify_sat(values['id'])
+
     def _get_filteryears(self, values):
         years1 = main.Facturas.filter_years()
         years2 = main.PreFacturas.filter_years()
diff --git a/source/app/models/main.py b/source/app/models/main.py
index 752ef52..3fe6f67 100644
--- a/source/app/models/main.py
+++ b/source/app/models/main.py
@@ -3979,9 +3979,30 @@ class Facturas(BaseModel):
     @classmethod
     def get_status_sat(cls, id):
         obj = Facturas.get(Facturas.id == id)
-        obj.estatus_sat = util.get_sat(obj.xml)
-        obj.save()
-        return obj.estatus_sat
+        estatus_sat = util.get_sat(obj.xml)
+        if obj.estatus_sat != estatus_sat:
+            obj.estatus_sat = estatus_sat
+            obj.save()
+        return estatus_sat
+
+    @classmethod
+    def get_verify_sat(cls, id):
+        emisor = Emisor.select()[0].rfc
+        obj = Facturas.get(Facturas.id == id)
+        xml = util.parse_xml(obj.xml)
+        sello = xml.attrib.get('sello', xml.attrib.get('Sello'))[-8:]
+        data = {
+            'url': 'https://verificacfdi.facturaelectronica.sat.gob.mx/default.aspx?',
+            'uuid': '&id={}'.format(obj.uuid),
+            'emisor': '&re={}'.format(emisor),
+            'receptor': '&rr={}'.format(obj.cliente.rfc),
+            'total': '&tt={}'.format(str(obj.total)),
+            'sello': '&fe={}'.format(sello),
+        }
+        result = {
+            'url': '{url}{uuid}{emisor}{receptor}{total}{sello}'.format(**data)
+        }
+        return result
 
     @classmethod
     def anticipo_egreso(cls, id):
diff --git a/source/static/js/controller/invoices.js b/source/static/js/controller/invoices.js
index 18e7b38..7934de3 100644
--- a/source/static/js/controller/invoices.js
+++ b/source/static/js/controller/invoices.js
@@ -29,6 +29,7 @@ var invoices_controllers = {
         $$('grid_details').attachEvent('onBeforeEditStop', grid_details_before_edit_stop)
         $$('cmd_invoice_timbrar').attachEvent('onItemClick', cmd_invoice_timbrar_click)
         $$('cmd_invoice_sat').attachEvent('onItemClick', cmd_invoice_sat_click)
+        $$('cmd_invoice_verify_sat').attachEvent('onItemClick', cmd_invoice_verify_sat_click)
         $$('cmd_invoice_cancelar').attachEvent('onItemClick', cmd_invoice_cancelar_click)
         $$('grid_invoices').attachEvent('onItemClick', grid_invoices_click)
         $$('grid_invoices').attachEvent('onSelectChange', grid_invoices_on_select_change)
@@ -2022,3 +2023,28 @@ function up_invoice_upload_complete(response){
     })
 }
 
+
+function cmd_invoice_verify_sat_click(){
+    var rows = gi.getSelectedItem(true)
+
+    if (rows.length == 0){
+        msg_error('Selecciona una factura')
+        return
+    }
+
+    if (rows.length > 1){
+        msg_error('Selecciona solo una factura')
+        return
+    }
+
+    if(!rows[0].uuid){
+        msg_error('La factura no esta timbrada, solo es posible verificar \
+            en el SAT, facturas timbradas')
+        return
+    }
+
+    webix.ajax().get('/values/verifysat', {id: rows[0].id}, function(text, data){
+        var values = data.json()
+        window.open(values.url, '_blank')
+    })
+}
\ No newline at end of file
diff --git a/source/static/js/ui/invoices.js b/source/static/js/ui/invoices.js
index 80024cd..0aa4c86 100644
--- a/source/static/js/ui/invoices.js
+++ b/source/static/js/ui/invoices.js
@@ -190,6 +190,8 @@ var toolbar_invoices_util = [
         type: 'iconButton', autowidth: true, icon: 'ticket'},
     {view: 'button', id: 'cmd_invoice_sat', label: 'SAT',
         type: 'iconButton', autowidth: true, icon: 'check-circle'},
+    {view: 'button', id: 'cmd_invoice_verify_sat', label: 'SAT',
+        type: 'iconButton', autowidth: true, icon: 'firefox'},
     {},
     {view: 'button', id: 'cmd_invoice_cancelar', label: 'Cancelar',
         type: 'iconButton', autowidth: true, icon: 'ban'},