The range of a night vision scope depends on many factors. The amount of residual light and type of landform are of the most importance. A night vision device behaves differently during a bright moon night than during a cloudy night. A snowy clearing provides far better visibility than a thick forest covered by a layer of decayed leaves, which absorb great amounts of light. In case of total darkness the range depends completely on the artificial IR illumination source. Most night vision devices are equipped with a built-in short-range illuminator providing good visibility in a 20-30 m range. Moreover, the night vision device can be also assisted by an external long-range illuminator. It can be a torch emitting near infrared light and equipped with a power adjustment and a light beam focus. Depending on a variety of conditions, it can illuminate the terrain in a 100-400 m range.

ATN is is the leading Tech Optics company . This company is the manufacturer not a distributor of night vision scope https://www.atncorp.com/smart-hd-weapon-sight . All of ATN products ship complete with detailed instruction manual, attractive retail gift boxes, all necessary hardware, and batteries are included with every unit.