"Optimax Technology LLC SA6245 SA62 w/ rangefinder Thermal Rifle Scope Black 2.8x 45mm Multi Reticle 2x-8x Zoom 640x480, 5" thermal rifle scope. This scope is designed for hunting and shooting in low-light or nighttime conditions, as it uses thermal imaging technology to detect heat signatures from targets. The scope has a magnification range of 2x-8x, with a 2.8x optical magnification and a 45mm objective lens. It also features a rangefinder to help you estimate the distance to your target. The scope has multiple reticle options to choose from and a 640x480 resolution display. The scope runs on 2 CR123A batteries and has a battery life of up to 5 hours of continuous use.