This Flir Scout TS32R infrared thermal night vision camera has a 320x240 dectector, 7.5hz refresh rate, and a maximum range of 1250 yards. The display itself auto-focuses, and the iris-style eyecup controls light emissions. The TS32R features 2x digital zoom, military standard white-hot and black-hot displays, and 4 levels of Instaler™ polarity which colors heat above a certain temperature bright red. FLIR SCOUT TS32R 320X240 Thermal Camera 431-0004-07-00S