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DTNVS / NNVT-7 P45 is a modern dual-tube night-vision system that combines the DTNVS housing with high-sensitivity NNVT-7 White Phosphor (P45) image-intensifier tubes.
The NNVT-7 tubes represent a new generation of Chinese IITs manufactured in the MX10160 (≈18 mm) format, offering performance close to Gen 3 Omni VII / VIII class, with FOM above 2000, SNR ≥ 30, and center resolution up to 72 lp/mm.
The DTNVS housing is lightweight, highly reliable, and fully waterproof (IP68), making this configuration one of the best balances of quality, price, and ergonomics.
⚙️ Technical Specifications
| Parameter | Value |
|---|---|
| Housing | DTNVS (Dual Tube Night Vision System) |
| IIT Type | NNVT-7 |
| Tube Format | MX10160 (≈18 mm) |
| Phosphor | P45 (white) |
| Figure of Merit (FOM) | ≥ 2000 (typically 2000–2400+) |
| Signal-to-Noise Ratio (SNR) | ≥ 30 |
| Center Resolution | 68–72 lp/mm |
| High-Light Resolution (HLLR) | ~54 lp/mm |
| Luminous Gain | ~11,000–20,000 cd/m²/lx |
| Auto-Gating | Present |
| Power Supply | 1× CR123A or external power (ANVIS cable) |
| Water Protection | IP68 (up to 10 m submersion) |
| System Weight (with IITs) | ≈ 460 g |
| Mounting Interface | Helmet-mount compatible (Wilcox, Norotos, Rhino II, etc.) |
| Included Documentation | BNVS kit, individual IIT data sheets |
Comment / Quality Level
The NNVT-7 P45 tubes deliver high sensitivity and clean field uniformity, outperforming most commercial Gen 2+ systems and approaching early contract-grade Gen 3 solutions in operational stability.
White Phosphor P45 provides a natural, contrast-rich image that reduces eye fatigue and improves situational awareness in darkness.
Thanks to auto-gating, NNVT-7 tubes perform well in dynamic lighting conditions (flashes, headlights, reflections) without noticeable image washout.
In combination with the lightweight DTNVS housing, the user receives a reliable, ergonomic, and serviceable system suitable for prolonged field use.
Suitable For
• Users who require a lightweight yet capable dual-tube system with near-Gen-3 performance.
• Reconnaissance, observation, and patrol operators working in mixed-lighting environments.
• Training programs and professional users seeking a cost-efficient alternative to full contract-grade Gen 3.
• Civilian professionals who value ergonomics, reliability, and modern White-Phosphor imaging.