The FLIR Prometheus combines a focusable 50mm optical lens with the trusted performance of FLIR's Tau 2 thermal imaging core. Designed for mid-range thermal surveillance and capable of refresh rates up to 60 Hz, the Prometheus offers dependable thermal imaging to maintain sightlines on moving objects of interest.Features:Reliable vision - thermal imaging provides unwavering vision in complete darkness and through glaring light, smoke, and hazeQuality optics-prometheus is equipped with a 50 mm manual focus lens to detect humans, animals, and objects from distanceCustom viewing modes - the feature-packed Prometheus offers a 4x digital zoom and multiple user-controlled color palettesQuad-VGA displayOn/off/standby modeWhite hot, black hot, fusion, rainbow, globow, ironbow1, ironbow2, sepia, color1, color2, ice-fire, rain, and OEM colour pallettes17 um Microbolometer detector type-5 to +5 diopter adjustmentUp to 4.5 hr battery life