The SPI 250DX is a state of the art thermal ir imaging device that is both aesthetically pleasing (looks like a small camcorder) and ergonomic in design. Underneath the pleasing exterior of the 250D beats the heart of a true workhorse. The 250D is designed to the meet the high standards of the elite US military, the internal components of the wide sight security flash scope 250D are state of the art and designed to withstand the rigors of combat & are battlefield proven.