NOVELTY - The module has a camera (10) e.g. infrared camera, provided within a housing. The camera includes an optical path that partially coincides with an aperture of a faceplate of the housing. Fluid delivery ports (20, 25) are coupled to the housing so as to direct a cleaning fluid e.g. gas-based and liquid-based cleaning fluid, toward the aperture. Channels are coupled to the housing, in fluid communication with the ports, to direct the fluid from a fluid source e.g. water source, to the ports. The ports and/or the channels are embedded in the faceplate.    USE - Self-contained camera module for a livestock monitoring system to image a portion of an animal e.g. cow, or a target such as living being, animal, plant, manufacturing process, wilderness environment and/or gas, and to monitor temperature of an uncontrolled environment (all claimed), for an application e.g. security application, surveillance application, geothermal analysis application, health monitoring application and gas leakage detection application. Can also be used for livestock, sheep, pig, horse and deer.    ADVANTAGE - The utilization of the camera allows performing gas detection in the environment, detecting contaminants in the environment, and detecting fouling of an associated lens and window pane. The camera module performs self-maintenance, and monitors the temperature of the uncontrolled environment. The module provides a self-cleaning lens and/or window to isolate the camera from the uncontrolled environment.    DETAILED DESCRIPTION - The cleaning fluid is water, surfactant, detergent and/or acid. INDEPENDENT CLAIMS are also included for the following:    (1) a method for imaging a target    (2) a method for operating a camera module    (3) a self-cleaning window kit for installation along an optical path of a camera    (4) a monitoring system for assessing a target.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a camera module.    Camera (10)    Optically transparent window pane (15)    Fluid delivery ports (20, 25)    Gas (30)    Liquid (35)    Regions (40)