A specialized collimator used to calibrate infrared/night vision fire control systems.
The collimator contains a reticle which can be seen by the thermal sensor of the device being calibrated. The design allows aligning in lighted or unlighted conditions. Variations can be provided.
The Warren-Knight WK-29-0741 thermal collimator has a length of 36″ and a height of 12.12″ with a 10.5″ width. It weighs approximately 40 lbs.