Vuurwapen blog is known for some harsh reviews and if a product can get a good review, that says quite a few things.
Mantis X calls itself a Firearm Training System, and seems to be a machine incorporating motion detection device as well as accelerometer to analyze what a shooter is doing during firing.
It can be used for dry fires as well as live fires.
Website: http://mantisx.com/
Other reviews:
RECOIL magazine
Guns.com
