Designed for 24/7 day/night surveillance, and video registration of during adverse weather conditions. Suitable for short, or long-range surveillance and target detection up to 3.5km. Incorporating user-selectable reticles, digital magnetic compass, zoom function and video recording capability, this device suits any security professional. Integrated laser range finding up to 3500 m. Product is available in 35mm (ATBS-635), 55mm (ATBS-655), and 75mm (ATBS-675) configurations per end-user request.