The Sightmark Ghost Hunter 5x50 Digital Night Vision monocular can be operated during the day or night. Equipped with digital imaging technology, the Ghost Hunter 5x50 digital night visions’ performance is comparable to generation 2 night vision systems. This digital night vision monocular has a built-in high power infrared illuminator recommended for use in low-ambient light conditions or total darkness. Equipped with an ergonomic rubber gripping surface and high quality polymer construction, this unit was designed to be lightweight and durable for long lasting operation. Sightmark products are protected by a Limited Lifetime Warranty. Sightmark-Make Your Mark!