Remote Pressure Switch AER-04Tactical Remote Pressure Switch The Fenix AER 04 tactical remote switch is the perfect accessory for your rail mounted flashlight. This remote switch allows you to quickly select momentary with the pressure pad or constant on with the tactical switch. Easily attach your remote switch either by cable ties or the hook and loop backer (both included). Features: Tactical round switch for constant on; pressure switch for momentary on (high). Tail adapter