Long Range Thermal Infrared Monocular Night vision monocular for total darkness or low light. Viewing distance: unlimited viewing distance: 200m2) can be used during the day or night, when the target shelter is opened, the target shelter must be removed at night so it is better to watch. It also has photo shooting, video shooting, and playback functions. It achieves 5x optical zoom and 8x digital zoom.3) Perfect optical equipment to equip human vision. [Operation Tips] 1) Night vision single-hole optical instruments are used to obtain images of objects in low light and night situations.2) Equipped with infrared illuminator.Suitable for use in incomplete darkness.3) When the single hole works in the dark, turn on the infrared illuminator.The brightness of the infrared illuminator is adjusted according to the distance of the object.Itis is also equipped with a low-level illumination transducer.If any light source is present, such as street lamps or moonlight, there is a turn to the infrared illuminator and adjusting the focal length of the object and the brightness of the screen will give a clear image.4) Operation without an infrared illuminator for up to 5 hours.Infrared illuminator up to 2.5 hours