Locating element in Protractor when two elements having same attributes

Below is the code for two input boxes, how can I locate a particular element when they are having same attributes?

<input name="inputText" ng-required="field.required" ng-change="handleEdit('First name',selectedSensor[field.key],field.key)" ng-model="selectedSensor[field.key]" ng-pattern="/^[a-z]+$/i" maxlength="100" class="ng-pristine md-input ng-empty ng-invalid ng-invalid-required ng-valid-pattern ng-valid-minlength ng-valid-maxlength ng-touched"  required="required" aria-invalid="true" style="">

<input name="inputText" ng-required="field.required"  ng-change="handleEdit('Last name',selectedSensor[field.key],field.key)"  ng-model="selectedSensor[field.key]" ng-pattern="/^[a-z]+$/i"  maxlength="100" class="ng-pristine md-input ng-empty ng-invalid ng-invalid-  required ng-valid-pattern ng-valid-minlength ng-valid-maxlength ng-touched"  required="required" aria-invalid="true" style="">