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Durable, Fully Impact-Resistant

The entire CAP Series was designed to comply with all mandatory impact, load and flammability requirements – industrial standards NO crystal or non-reinforced polymer IR window can possibly meet.

Inspect Multiple Components Using One Window

Available in 4”, 6”, 12” and 24” widths, they allow inspection of multiple components through one window, reducing the total number of windows required, associated installation time, and costs.

Fixed and Stable Transmission (FAST)

The durability and proven transmission stability of our patented reinforced polymer is the cornerstone of the CAP Series.

Product Description


Window Housing and Cover Standard product constructed of aluminum; custom materials available
Optic UL 746 compliant, IR transmissive polymer; -40°C (-40°F) to 325°C (617°F)
Gaskets UL 94 5VA TPE; -40°C (-40°F) to 273°C (523°F)
Hardware 316 stainless steel


Useful Temperature Rating -40°C (-40°F) to 200°C (392°F)
Water and Dust Ingress IP65 / NEMA 4: closed and when in use


cap diagram


Model Window Dimensions Overall Dimensions
CAP-4, CAP-C-4 A= 9.68 cm (3.81 in), B= 9.77 cm (3.85 in) C= 15.24 cm (6 in), D= 15.24 cm (6 in)
CAP-6, CAP-C-6 A= 9.1 cm (3.6 in), B= 15 cm (5.9 in) C= 16 cm (6.3 in), D= 21.8 cm (8.6 in)
CAP-12, CAP-C-12 A= 23.6 cm (9.3 in), B= 12.7 cm (5.0 in) C= 30.5 cm (12.0 in), D= 20.6 cm (8.1 in)
CAP-24, CAP-C-24 A= 53 cm (20.9 in), B= 15 cm (5.9 in) C= 61 cm (24.0 in), D= 21.8 cm (8.6 in)



IRISS IR windows are the most certified windows in the industry with IEEE (impact & load), UL, cUL, Lloyds, CSA 22.2 14-13 for industrial control equipment, DNV and ABS (American Bureau of Shipping) credentials.

Protected by our Unconditional Lifetime Warranty

Unconditional lifetime warranty applies not only to the workmanship of the window housing but also applies to the durability and stability of the optic in the proposed environment.


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