ngStorage in select with Angularjs

I use ionic, and I have a select where I choose one of two options for performing arithmetic operations with them after. Use ngStorage to save, but I would also apply to the select the option itself and always keep the user chooses in ngStorage supporting me as I do with the input of "write a number", any help?

http://codepen.io/maestromutenrroy/pen/ivgIH

angular.module('ionicApp', ['ionic','ngStorage'])

.controller('MainCtrl', function($scope, $localStorage) {

    $scope.$storage = $localStorage.$default({
        c6: 1,
        c12: 2
    });   

    $scope.results = {};

    $scope.templates = [{
            name: '5',
            url: 'template1.html'
        },
        {
            name: '10',
            url: 'template2.html'
    }];
    $scope.template = $scope.templates[1];

  })

Thank you!