As an added feature, the engineers at Smart Firearms Training Devices, LLC have created a revolutionary feature that will change the way the safe handling of firearms is taught.  From the very first moment the student is exposed to our training weapon, the device will demand safe handling.  Using a proprietary sensor design, the advanced technology embedded into our training weapon will detect when there is the slightest intrusion into the trigger guard.  This device will not penalize the student for making the conscious decision to transition their finger onto the trigger and engage the threat, but will alert the instructor if proper trigger control is not utilized.  Features SMG.  The SFTD design can be molded to fit the holsters of most modern law enforcement and military firearms.