If you need extra protection for your Camera Trigger then you shall need this accessory. Although the Enclosure of the Gizmo is quite rigid it is still better to always have some extra protection for it since you never know where you shall be and what may happen to the device.

Have in mind that if this protector is applied to the enclosure then you shall need to remove it or move out of the way in order to connect any sensor or additional cable to the Gizmo. The USB cable however can be connected without removing the protector.