Compact thermal imager is 5.6 inches long and weighs less than 10 ounces. Features a 21 degree field of view, 6x digital zoom and has a thermal detection distance of up to 600 yards. Six optional termal palettes and a user controlled reticle for quick acquisition of the target. Operating temperature: -4F to 140F. Display: direct view 1.22 inches round. Display resolution: 240x204 px. Start-up time is less than three seconds. Powered by one CR123 battery.