€12.68excl. VAT
In stock
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37mm iris diaphragm suitable for night vision, scopes, and microscopy applications.
Optical iris diaphragm for night vision goggles, scopes, microscopes, and other opto-mechanical uses. It has an aperture range of 1.5mm to 24 mm [¹/₁₆ - ¹⁵/₁₆"], and an outside diameter of 37 mm [1 ²⁹/₆₄"].
Specifications Aperture: 1.5 - 24 mm [¹/₁₆ - ¹⁵/₁₆"] Outside diameter: 37 mm [1 ²⁹/₆₄"] Thickness: 8 mm [⁵/₁₆"] Leaves: 12 Handle rotation: ~90° Colour: Black Material: PLA plastic (3D printed)
If you need an adapter, or other modifications, please do reach out!
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With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
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Two to six weeks, depending on refurbishment scope and whether calibration is included.
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Last updated 22 October 2026
€13 sits below most air velocity and flow equipment here. The middle half of the 172 with a price runs from €347 to €1,013.
50 other listings of this model are available.
