diff --git a/product.py b/product.py
index cfb091b..7a1ab3a 100644
--- a/product.py
+++ b/product.py
@@ -10,7 +10,6 @@ from trytond.pyson import Bool, If, Eval, Id
 from trytond.exceptions import UserError
 
 
-
 _RISK = [('', ""),
          ('uno', 'I'),
          ('dosA', 'IIA'),
@@ -109,9 +108,51 @@ class Template(metaclass=PoolMeta):
     warranty_uom = fields.Many2One('product.uom', 'Useful Life UOM',
                     domain=[('category', '=', Id('product', "uom_cat_time"))])
 
+    @classmethod
+    @fields.depends('temperature')
+    def default_temperature_uom(self):
+        #raise UserError(str(dir(self.temperature)))
+        if self.temperature != float:
+            return None
+        else:
+            pool = Pool()
+            Measurements = pool.get('product.uom')
+            measurement = Measurements.search(['name', '=', 'Celsius'])[0].id
+
+            return measurement
+    
     @staticmethod
-    def default_equipment():
-        return False
+    def default_frequency_uom():
+        pool = Pool()
+        Measurements = pool.get('product.uom')
+        measurement = Measurements.search(['name', '=', 'Hertz'])[0].id
+        
+        return measurement
+
+    @staticmethod
+    def default_wet_uom():
+        pool = Pool()
+        Measurements = pool.get('product.uom')
+        measurement = Measurements.search(['name', '=', 'Relative Humedity'])[0].id
+        
+        return measurement
+
+    @staticmethod
+    def default_voltageAC_uom():
+        pool = Pool()
+        Measurements = pool.get('product.uom')
+        measurement = Measurements.search(['name', '=', 'Volt'])[0].id
+        
+        return measurement
+
+    @staticmethod
+    def default_voltageDC_uom():
+        pool = Pool()
+        Measurements = pool.get('product.uom')
+        measurement = Measurements.search(['name', '=', 'Volt'])[0].id
+        
+        return measurement
+
 
     @staticmethod
     def default_risk():
@@ -137,6 +178,11 @@ class Template(metaclass=PoolMeta):
     def default_refurbish():
         return False
 
+    @staticmethod
+    def default_refurbish():
+        return False
+
+
     @fields.depends('mark_category', 'model_category')
     def on_change_mark_category(self):
         if self.mark_category: