Detect touch events on range slider


I have an <ion-range> slider in my application that is used as a scrubber for audio. I need to be able to detect touch events. In Ionic 1.x I was able to use on-touch and on-release, but I could not find those directives in angular 2. I’ve tried using (touchactivate) and (touchend) but it works on the elements around the slider, not the slider knob itself.