The small size and built-in features of the OS36-2 Series make it a convenient device for a wide variety of infrared monitoring tasks. The narrow 35° field of view and very small aperture allow for small target measurements to 4 mm (0.16"). The OS36-2 threaded head securely mounts through a bulkhead or threads into a tapped hole. The internal air purge passages provide a convenient and highly efficient method of maintaining optical cleanliness in harsh environments.
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