Node.js error finding data with accent

I have a problem, i'm using module 'mssql' for access sql server database, but the return data not contaning accents.

Code:

'use strict';
var sql = require('mssql');
var connectionString = {
  user: 'sa',
  password: '******',
  server: 'localhost',
  port: '1433',
  database: 'ConsumerData'
};

sql.connect(connectionString, function(error) {
  if (error) {
    throw error;
  }
  var request = new sql.Request();
  request.query('select * from TbConsumer where Id = 1', function(err,        recordset) {
    console.log(recordset);
  });
});

Result: [ { Id: 1, ... , FirstName: 'JoÆo Z'' } ]

The expected result: [ { Id: 1, ... , FirstName: 'João Zé' } ]

Somebody already has the problem like this?