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The combination of the ATN PVS-31 housing with NoctuVision++ IIT tubes (White Phosphor P45) is a highly efficient night-vision system that confidently competes in performance with mid-range and even some high-end Gen 3 models.
NoctuVision++ tubes feature fast auto-gating, low background noise, and a wide usable illumination range, making them suitable for urban, forested, and mixed environments.
On average, they deliver FOM 1800–2200, while top-performing units reach up to ~2600, placing this series among the best in the non-US Gen 3-equivalent IIT category.
⚙️ Technical Specifications
| Parameter | Value |
|---|---|
| Housing | ATN PVS-31 |
| Tube Model | NoctuVision++ IIT |
| Phosphor | P45 (White Phosphor) |
| Phosphor Options | P43 (green) or P45 (white) |
| FOM | ~1800–2200 typical, up to ~2600 max |
| SNR | High (above XLS/XLSH and NNVT-series standards) |
| EBI | Reduced — improved performance in very dark environments |
| Auto-gating | Ultra-fast |
| Resolution | Batch-dependent, typically within Gen 3 performance range |
| Tube Format | MX10160-compatible |
Comment / Quality Level
NoctuVision++ IIT is one of the most successful modern IIT platforms, offering performance equivalent to early Gen 3, and in top-tier units approaching U.S. XLS / XLSH levels.
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P45 white phosphor provides natural, high-contrast imaging and easier object tracking during movement.
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Ultra-fast auto-gating ensures excellent compatibility with urban lighting, tracers, and infrastructure-level illumination.
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Low EBI allows comfortable operation in environments where Gen 2+ and low Gen 3 commonly introduce noise: open fields, forests, moonless nights.
Suitable For
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Reconnaissance units requiring a clean image and passive operation without IR illumination.
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Infantry and mobile teams working at night in open terrain.
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UAV operators needing stable detail rendering and low noise.
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Security and enforcement units, including urban patrol operations.
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Volunteer military-support programs as a balanced price/performance solution.
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Users who require a PVS-31 housing but prefer more affordable tubes without sacrificing practical effectiveness.