AQT1041 Features: * Powerful multi-coated all glass optics * Easy to see ""Red on Green"" reticule system * reticule brightness adjustment * Water and fog resistant * Detachable long range infrared illuminator * Intensifier Tube: 1+ * Resolution: 40 lp/mm center * Magnification: 5x * Lens system: F1:1.4, F90 mm * Range of focus: 4 m to infinity * Controls: Direct * Wind age and elevation adjustment step size: 1/8 inch to 100 yards adjustment * Reticule: Red On Green * Battery life: 20 hours * Environmental rating: Weather resistant * Operating temperature: +/-5 * Storage temp: -40 C to +50 C * Diopter adjustment: -50 C to +70 C Specifications: * Infra-red illuminator: 450 m with detachable * Power supply: (1) 3v lithium (CR123A) Dimensions: * Dimensions: 3.6"" H x 4.3"" W x 10.8"" D * Weight: 3.2 lbs