The RSNV-31ND is a high-end night vision binocular developed by RSNV Optoelectronics, engineered for superior performance and user comfort. Featuring a wide 50° field of view, it delivers enhanced situational awareness, while the extended interpupillary range and large eyepiece design provide a more immersive and comfortable viewing experience.
Built with an exclusive patented design, the RSNV-31ND includes features such as a lockable objective focus range, custom eyepiece diopter, and intuitive flip-up power control—making it easy to operate while maintaining performance that stands above standard dual-tube systems.
Key Features
- Wide 50° field of view for increased visibility
- Objective lens focus range lock for consistent performance
- Flip-up on/off functionality for quick operation
- Extended interpupillary adjustment with large eyepiece design
- Exclusive patented design for enhanced usability and performance
| Generation |
Gen 2+/Gen3 (Optional) |
| Magnification |
1x |
| FOV (°) |
50 ±2 (40 optional) |
| Resolution (lp/mm) |
63–70 |
| Diopter |
-6~+4 / -3~+5 (Optional) |
| Capability |
Flip-up / On-off / Side flip-up / On-off |
| Optical Distortion |
0.5% Max |
| Automatic Brightness Control |
Yes |
| Bright Light Cut-off |
Yes |
| Infrared Illuminator |
Built-in (850nm, 20mW) |
| IR Indicator |
Yes |
| Low Battery Indicator |
Yes |
| Power Supply |
CR123 x1 / AA x1 |
| Battery Life |
40–100 hours |
| Eyepiece Exit Pupil Distance (mm) |
25–40 |
| Eyepiece Exit Pupil Diameter (mm) |
9 |
| Eye Distance Adjustment Range (mm) |
50–80 |
| Eye Distance Locking |
Manual locking (Optional) |
| Operating Temperature (°C) |
-40 to +55 |
| Relative Humidity |
5%–95% |
| Waterproof |
IP65/IP67 |
| Dimensions (mm) |
108 × 106 × 83 |
| Weight |
325g (housing) / 465g (finished) |
