AngularJS ng-change使用select2的替代方案

Question

ng-change似乎与select2无关。是否有这样的限制，还有其他选择吗？

<select ng-change = "selected()" ng-model = "sel" > 
    <option value=""></option>
    <option ng-repeat = "o in range" value="{{o.value}}">{{ o.value }}</option>
</select>