Without fuss, this device quickly converts your daytime riflescope to a full-feature thermal optic, without requiring you to re-zero! The Pulsar Krypton�s brand-new 640x480 microbolometerproduced in the USA provides users with a massive 2500-yard detection range, enabling shooters to quickly locate their desired prey. Even the smallest details, from branches, leaves, grass and other terrain, are visible through the Krypton! Its quick-release adapter and Precise Screen Positioning (PSP) Mechanism allows you to quickly detach and reattach the Krypton in the exact same position that it was in before. Even in low-light conditions, users can easily make quick adjustments through the elite, sequential layout of the electronic and optical components, reducing stress and maximizing the joys of hunting and shooting.