diff --git a/equipment.py b/equipment.py
index 52a613f..ea79838 100644
--- a/equipment.py
+++ b/equipment.py
@@ -39,12 +39,12 @@ class OpticalEquipment(Workflow, ModelSQL, ModelView):
                               )
     refurbish = fields.Boolean("Refurbish",
                                states={'readonly': Eval('state') != 'draft',},)
-    equipment_type = fields.Char('type', readonly=True)
-    risk = fields.Char('Type risk',readonly=True)
-    use  = fields.Char('Use', readonly=True)
-    biomedical_class = fields.Char('Biomedical Class', readonly=True)
-    main_tecnology = fields.Char('Main tecnology', readonly=True)
-    calibration = fields.Boolean("Apply calibration", readonly=True)
+    equipment_type = fields.Char('type', states={'readonly': If('product', True)})
+    risk = fields.Char('Type risk',states={'readonly': If('product', True)})
+    use  = fields.Char('Use', states={'readonly': If('product', True)})
+    biomedical_class = fields.Char('Biomedical Class', states={'readonly': If('product', True)})
+    main_tecnology = fields.Char('Main tecnology', states={'readonly': If('product', True)})
+    calibration = fields.Boolean("Apply calibration", states={'readonly': If('product', True)})
     mark_category = fields.Many2One('product.category', 'Mark', required=True,
                                     domain=[('parent', '=', None),
                                             ('accounting', '=', False)],
diff --git a/equipment.xml b/equipment.xml
index 0e2edd7..a132cd3 100644
--- a/equipment.xml
+++ b/equipment.xml
@@ -87,12 +87,49 @@
 		  action="act_optical_equipment_form"
 		  sequence="20"
 		  id="menu_optical_equipment_form"/>
+	<menuitem
+            name="Serials"
+            sequence="20"
+            id="menu_equipment_serial"/>
+	<record model="ir.action.act_window" id="act_optical_equipment_form1">
+	    <field name="name">Serials</field>
+	    <field name="res_model">optical_equipment.equipment</field>
+	    <field name="search_value"></field>
+	</record>
+	<record model="ir.ui.view" id="optical_equipment_view_tree1">
+            <field name="model">optical_equipment.equipment</field>
+            <field name="type">tree</field>
+            <field name="name">optical_equipment_serial_tree</field>
+        </record>
+	<record model="ir.action.act_window.view" id="act_optical_equipment_view3">
+            <field name="sequence" eval="10"/>
+	    <field name="view" ref="optical_equipment_view_tree1"/>
+            <field name="act_window" ref="act_optical_equipment_form1"/>
+	</record>
+	<record model="ir.action.act_window.domain" id="act_optical_equipment_serial_form_domain_draft">
+            <field name="name">Draft</field>
+            <field name="sequence" eval="10"/>
+            <field name="domain"
+                eval="[('state', '=', 'draft')]"
+                pyson="1"/>
+            <field name="count" eval="True"/>
+            <field name="act_window" ref="act_optical_equipment_form1"/>
+        </record>
+	<menuitem parent="menu_equipment"
+		  action="act_optical_equipment_form1"
+		  sequence="30"
+		  id="menu_optical_equipment_serial_form"/>
 	
 	<record model="ir.ui.menu-res.group"
             id="menu_party_group_equipment_admin">
             <field name="menu" ref="menu_equipment"/>
             <field name="group" ref="group_equipment_admin"/>
         </record>
+	<record model="ir.ui.menu-res.group"
+            id="menu_party_group_equipment_admin1">
+            <field name="menu" ref="menu_equipment_serial"/>
+            <field name="group" ref="group_equipment_admin"/>
+        </record>
 	<record model="ir.sequence.type" id="sequence_type_equipment">
 	    <field name="name">Equipment</field>
 	</record>
diff --git a/locale/es.po b/locale/es.po
index 43e5331..c73efb0 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -6,6 +6,10 @@ msgctxt "view:product.template:"
 msgid "Features"
 msgstr "Características"
 
+msgctxt "view:product.template:"
+msgid "Calibration"
+msgstr "Calibración"
+
 msgctxt "view:product.template:"
 msgid "Measurements of Equipment"
 msgstr "Medidas del Equipo"
@@ -105,3 +109,19 @@ msgstr "Vida útil"
 msgctxt "field:product.template,warranty:"
 msgid "Warranty"
 msgstr "Garantía"
+
+msgctxt "field:product.template,uncertainy_pattern:"
+msgid "Uncertainy Pattern"
+msgstr "Patrón de Incertidumbre"
+
+msgctxt "field:product.template,k_pattern:"
+msgid "K Pattern"
+msgstr "Patrón K"
+
+msgctxt "field:product.template,d_resolution:"
+msgid "Resolution d"
+msgstr "Resolución (d)"
+
+msgctxt "field:product.template,analog_resolution:"
+msgid "Analog resolution"
+msgstr "Resolución Analoga"
diff --git a/product.py b/product.py
index 53d9021..3fd04f5 100644
--- a/product.py
+++ b/product.py
@@ -146,6 +146,16 @@ class Template(metaclass=PoolMeta):
     useful_life = fields.Integer("Useful life")
     warranty = fields.Integer("Warranty")
 
+    #### calibration parameters
+
+    uncertainy_pattern = fields.Char("Uncertainy Pattern",
+                                     help="Agregar valores separados por ',' Ej:-5,+5,-10,+10")
+    k_pattern = fields.Char("K Pattern",
+                            help="Agregar valores separados por ',' Ej:-5,+5,-10,+10")
+    d_resolution = fields.Integer("Resolution d")
+    analog_resolution = fields.Integer("Analog resolution")
+    Usubi = fields.Integer("Usub i")
+    
     @classmethod
     @fields.depends('temperature')
     def default_temperature_uom(self):
diff --git a/view/template_form.xml b/view/template_form.xml
index 490af71..8b8294c 100644
--- a/view/template_form.xml
+++ b/view/template_form.xml
@@ -47,6 +47,21 @@ this repository contains the full copyright notices and license terms. -->
 	    <newline/>
 	    <label name="calibration"/>
 	    <field name="calibration"/>
+	    <newline/>
+	    <label name="uncertainy_pattern"/>
+	    <field name="uncertainy_pattern"/>
+	    <newline/>
+	    <label name="k_pattern"/>
+	    <field name="k_pattern"/>
+	    <newline/>
+	    <label name="d_resolution"/>
+	    <field name="d_resolution"/>
+	    <newline/>
+	    <label name="analog_resolution"/>
+	    <field name="analog_resolution"/>
+	    <newline/>
+	    <label name="Usubi"/>
+	    <field name="Usubi"/>
 	</page>
     </xpath>
     <xpath expr="/form/notebook/page[@id='measurements']/label[@name='length']" position="before">