FNIRSI® NVS-40 4K HD Binocular Night Vision Infrared 6x Digital Zoom
FNIRSI® NVS-40 is a binocular night vision instrument used for observing objects in pitch black or weak light. The observation distance in weak light is not limited, and can reach 300 meters in full darkness environments. Equipped with USB interface and TF card slot, supporting firmware updates and shooting storage. Fully functional, this color screen can be used normally during the day and night, with functions such as taking photos, shooting, playback, and electronic zoom up to 6x. This device is the best auxiliary tool for human night vision extension.

Features:
- Drawtube: Binocular Night Vision
- Complete Dark Viewing Distance 300M
- Adapts to Day and Night
- Supports Photography Video
- 6x Electronic Zoom
- Handheld-Design, Compact and Portable
- Maximum 4K Video Resolution
- Supports File Export
- Voltage: 3.7V 18650 Battery
- Screen: 1.54 High-Definition IPS
- Charging: 5V/1A TypeC
- Temperature: 5~40℃
- Humidity: 0-80%
- Objective Lens Aperture: 25mm
- Weak Light Observation Distance: 2m-∞
- Observation Distance of All Black Without Light: 300m(Max)
Specifications:
| Parameter | Value |
|---|---|
| Brand | FNIRSI |
| Model | NVS-40 |
| Drawtube | Binocular |
| Electronic Zoom | 6x |
| Objective Lens Diameter | 25mm |
| Low Light or Daytime Observation Distance | 2m~∞ |
| Full Black Observation Distance | 300m(max) |
| Video Resolution | 4K(3840×2160) / 2K(2560×1440) / 1080FHD(1920×1080) / 720P(1280×720) / VGA(640×480) / QVGA(320×240) |
| Photo Resolution | 36MP / 32MP / 30MP / 24MP / 20MP / 16MP / 12MP / 10MP / 8MP / 5MP / 3MP / VGA |
| IR Wavelength | 850nm |
| Water Resistance Level | IPX6 |
| White Balance | Automatic, Daylight, Cloudy, Tungsten Filament, Fluorescent |
| ISO | Auto, 100, 200, 400, 800 |
| LCD Brightness Adjustment | High, medium, and low levels |
| Light Source Frequency | 50Hz/60Hz |
| Storage | 32G TF memory card |
| Language Setting | Chinese / Traditional / English / Japanese / Italian / French / German / Russian / Spanish / Portuguese |
| Voltage | 3.7V |
| Power Supply | 18650 internal battery |
| Charging | 5V/1A TYPE-C |
| Screen | 3.0inch HD IPS |
| Temperature | -5~40°C |
| Humidity | 0-80% |
| Size | 136x153x56mm |
Configuration:
Applications:
- Wildlife observation and nature study during nighttime hours.
- Hunting and outdoor sports requiring discreet long-range viewing.
- Security surveillance and perimeter monitoring in low-light conditions.
- Search and rescue operations in complete darkness.
- Camping, hiking, and night navigation.
- Law enforcement and border patrol visual reconnaissance.
- Field operations and scientific research requiring nocturnal documentation.
- Professional photography and videography in challenging lighting environments.












