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FULL TECHNICAL REVIEW FNIRSI Telescope NVS-20 4K HD Monocular Night Vision Goggles 6X Digital Zoom 300m Hunting Camping Scope Day and Night Dual Use

Product Introduction

The FNIRSI NVS-20 monocular night vision device emerges as a compelling solution for individuals seeking enhanced visual capabilities in low-light and complete darkness environments. Designed to extend human night vision, this versatile instrument addresses the common challenge of limited visibility during nocturnal activities, offering a robust and feature-rich alternative to traditional optical devices. Its unique selling proposition lies in its ability to deliver clear observation up to 300 meters in absolute darkness, coupled with high-resolution photo and video recording capabilities. This makes the NVS-20 an ideal companion for a wide array of applications, from wildlife observation and hunting to camping, security surveillance, and general outdoor exploration, providing users with a significant advantage in navigating and documenting their surroundings regardless of ambient light conditions. Check out our other technical reviews for more hardware testing.

Hardware specifications

Core Specifications: FNIRSI NVS-20

  • Brand Name: FNIRSI
  • Model Number: NVS-20
  • Type: Monocular
  • Origin: Mainland China
  • Material: Plastic
  • High-concerned chemical: None
  • Water Resistance Level: IPX6
  • Electronic zoom: 6X
  • Magnification: 6
  • Objective Lens Diameter: 25mm
  • Eyepiece diameter: 25mm
  • Low light or daytime observation distance: 2m-Infinity
  • Full black observation distance: 300m(max)
  • Field of View: 300m (Observation distance)
  • Infrared light: 850 nm
  • Recording resolution: 4K (3840*2160), 2K (2560*1440), 1080FHD (1920*1080), 720P (1280*720), VGA (640*480), QVGA (320*240)
  • Camera resolution: 36MP (max), 32MP, 30MP, 24MP, 20MP, 16MP, 12MP, 10MP, 8MP, 5MP, 3MP, VGA
  • 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 TYPEC
  • Screen: 1.54 inch HD IPS
  • Temperature: -5~40℃
  • Humidity: 0-80%
  • Size: 152x42x82mm
  • Weight: about 240g
Available Versions

Available Versions & Selection Guide

The FNIRSI NVS-20 is available, alongside the NVS-40 model, offering users options based on their specific requirements.

Package Contents

What’s in the Box?

The FNIRSI NVS-20 package includes:
1. NVS-20 night vision monocular
2. 32G TF card
3. USB charging cable
4. 18650 battery
5. User manual
6. Packing box

Features and benefits

Why I love FNIRSI FNIRSI NVS-20

  • Exceptional Night Vision Performance: The FNIRSI NVS-20 boasts an impressive full black observation distance of up to 300 meters, powered by an 850 nm infrared light source. This allows users to clearly discern objects and terrain in environments with zero ambient light, providing a critical advantage for nocturnal activities such as hunting, wildlife observation, or security patrols where visibility is paramount. The device also offers unlimited observation distance in weak light or daytime conditions, ranging from 2 meters to infinity, ensuring its utility across various lighting scenarios.
  • High-Resolution Imaging and Recording: Equipped with a powerful 36MP maximum camera resolution and 4K (3840*2160) video recording capabilities, the NVS-20 enables users to capture incredibly detailed photos and videos of their observations. This high fidelity is crucial for documentation, analysis, or sharing experiences, ensuring that every detail, whether a distant animal or a specific landscape feature, is preserved with clarity. Multiple lower resolutions are also available for flexible storage management.
  • Versatile Optical and Digital Zoom: Featuring a 6x electronic zoom and a 25mm objective lens diameter, this monocular provides significant magnification to bring distant subjects into clear view. The 25mm eyepiece diameter further enhances viewing comfort. This combination of optical and digital zoom allows for precise targeting and detailed examination of subjects, making it an invaluable tool for surveillance, reconnaissance, and detailed nature studies.
  • Robust and User-Friendly Design: The NVS-20 is constructed from durable plastic and boasts an IPX6 water resistance level, making it resilient against splashes and harsh weather conditions, suitable for rugged outdoor use. Its compact size of 152x42x82mm and lightweight design of approximately 240g ensure portability and ease of handling during extended periods of use. The device operates within a wide temperature range of -5℃ to 40℃ and humidity of 0-80%, guaranteeing reliable performance in diverse climates.
  • Comprehensive Power and Storage Solutions: The monocular is powered by an internal 3.7V 18650 lithium battery, offering convenient and long-lasting operation. Recharging is simplified via a 5V/1A TYPEC interface, ensuring compatibility with common power sources. Furthermore, the inclusion of a 32GB TF memory card provides ample storage for extensive photo and video recordings right out of the box, eliminating the immediate need for additional purchases and supporting firmware updates for future enhancements.
  • Intuitive Display and Multilingual Support: The 1.54-inch HD IPS screen provides a clear and vibrant display for real-time viewing and playback, with adjustable brightness levels (High, medium, and low) to suit different ambient light conditions. The device supports a wide array of languages including Chinese, Traditional Chinese, English, Japanese, Italian, French, German, Russian, Spanish, and Portuguese, making it accessible to a global user base and enhancing its overall usability.
Pros and Cons

Strengths & Weaknesses:

What I Like

  • Exceptional night vision clarity up to 300m in complete darkness.
  • High-resolution 4K video recording and 36MP photo capture.
  • 6x electronic zoom and 25mm objective lens for detailed observation.
  • IPX6 water resistance and durable plastic construction for outdoor use.
  • Compact and lightweight design (240g) for portability.
  • Includes 32GB TF card and 18650 battery, ready to use out of the box.
  • Versatile day and night use with full-color screen.
  • Multilingual interface for broad accessibility.
  • Good value for money compared to higher-priced alternatives.

Points to Consider

  • Some users report difficulty adjusting zoom or lack of clarity at maximum 300m range.
  • Digital screen icons (time, video mode) cannot be hidden, which may be distracting for some.
  • Plastic material, while durable, might feel less premium than metal-bodied devices.
  • Not a professional-grade device, may have limitations for highly specialized tasks.
  • The «Field of View» specification of 300m is likely the observation distance, not an angular field of view, which could be misleading.
Price and Availability

Where to Buy & Customer Reviews

Check Price on AliExpress (Best Value)

Find on eBay (New & Used)

As an Amazon Associate, eBay Partner, and AliExpress affiliate, I may receive compensation if you make a purchase through the links on this page at no extra cost to you. This supports my technical reviews and independent hardware testing.

Store info

STORE

⭐ 98.6% Positive Feedback | 123.0K Followers 

Name:FNIRSI Official Store
Store no.:2939001
Location:China
Open since:Feb 26, 2017

Detailed seller ratings

Item as Described4.9 Above Average
Communication4.9 Above Average
Shipping Speed4.9 Above Average

OTHER GOODS

User reviews

User Reviews & Feedback Analysis ⭐ 4.7 (40) | Sold (212)

Reviews FNIRSI NVS-20

Authentic Feedback Analysis:
⭐ 5.0/5 | AliExpress Shopper (US): Honestly, this is just as clear in complete darkness as my $800 night vision, and I’m a bit annoyed about it. I just don’t like that you can’t have the screen on without indicators like time and video mode. Other than that, yes, I’m buying more because I’m mad I paid for my other one.
⭐ 5.0/5 | AliExpress Shopper (PL): Honestly, for such a small amount, we really get a very good quality product. It takes really clear pictures in complete darkness. : D
⭐ 5.0/5 | K***k (PL): Product as described. Very good build quality and parameters. I RECOMMEND!!!!
⭐ 5.0/5 | AliExpress Shopper (FR): I just received my night vision scope and my first impressions are positive. The device has performance equivalent to much more expensive models. While the hard plastic of the device suggests some fragility, its performance-to-price ratio is beyond discussion!
⭐ 5.0/5 | R***e (US): This gadget is cool, it’s clear in the day. Night vision is cool. Can’t wait to use it for night hikes, looks better on the screen. Pitch black and still looks clear zoom 5.6x.
⭐ 5.0/5 | S***n (FR): Order received very quickly, within the announced deadlines. The package was perfectly protected, with no visible damage upon arrival. All products conform to the seller’s descriptions: quality is there, exact quantity, and no defects found. The packaging was solid, each piece well-arranged, no element was missing. The quality/price ratio is very competitive, which makes this supplier particularly interesting for bulk purchases. The seller was extremely responsive at every stage, with fluid, professional, and clear communication. He also provided excellent shipping tracking. This is a serious, reliable partner with whom I will not hesitate to work again for future needs. I am fully satisfied with this transaction, which went smoothly. I highly recommend this seller for his seriousness, the quality of his products, and the rigor of his service. See you very soon for a new order.
⭐ 5.0/5 | p***r (FR): Arrived quickly, well packaged and protected. Very correct quality/price and fun.
⭐ 5.0/5 | d***r (SE): Really good function and really well packaged, might have to buy the other version as well to compare.
⭐ 5.0/5 | AliExpress Shopper (LK): Very good low-light performance. Works in starlight, moonlight, and urban ambient light.
⭐ 5.0/5 | r***r (US): Nice little product. Has many menu features and not that difficult to navigate. For the price, ($50), and size it is quite nice. Due to view size some may not like the constant digital screen icons. I for one do not mind.
⭐ 5.0/5 | AliExpress Shopper (US): Very satisfied, works great for the price.
⭐ 5.0/5 | W***e (FR): It’s awesome. A small adaptation to put it on my airsoft replica with GoPro mounts on a Picatinny rail, but for the price, the quality is amazing.
⭐ 5.0/5 | j***r (CA): Not bad for this price. But not so great when using at night at 300 meters, not very clear.
⭐ 5.0/5 | a***r (MX): It is correct and precise, I haven’t verified it working yet but so far so good.
⭐ 5.0/5 | AliExpress Shopper (DE): It’s not a professional device but still very good quality.
⭐ 3.0/5 | AliExpress Shopper (IT): For its price, it’s a nice product, but you can’t adjust the zoom.
⭐ 5.0/5 | AliExpress Shopper (CA): Very well packaged. Yet to open box.
⭐ 4.0/5 | k*** (PL): Worth the money, but nothing spectacular.
⭐ 4.0/5 | AliExpress Shopper (DE): A bit too small.
⭐ 5.0/5 | AliExpress Shopper (CA): Seems to work good.
⭐ 1.0/5 | AliExpress Shopper (CO): Terrible item, it doesn’t have good resolution, during the day it’s difficult to see the screen, it’s practically better to look normally with your eyes, at night it’s barely visible at two meters, terrible item, a complete disappointment, I do not recommend it.
⭐ 5.0/5 | AliExpress Shopper (SV): Brand New Item, Fast Shipping !


Pinout and Interface Map

PRODUCT PARAMETER FNIRSI NVS-20

FNIRSI SG-003A SG-004A

Pinout and Interface Map

Technical Specifications & Comparison FNIRSI NVS-20

ParameterValue
Brand NameFNIRSI
Model NumberNVS-20
TypeMonocular
OriginMainland China
MaterialPlastic
High-concerned chemicalNone
Water Resistance LevelIPX6
Electronic zoom6X
Magnification6
Objective Lens Diameter25mm
Eyepiece diameter25mm
Low light or daytime observation distance2m-Infinity
Full black observation distance300m(max)
Field of View300m (Observation distance)
IR Wavelength850 nm
Recording resolution4K (3840*2160), 2K (2560*1440), 1080FHD (1920*1080), 720P (1280*720), VGA (640*480), QVGA (320*240)
Camera resolution36MP (max), 32MP, 30MP, 24MP, 20MP, 16MP, 12MP, 10MP, 8MP, 5MP, 3MP, VGA
White balanceAutomatic, daylight, cloudy, tungsten filament, fluorescent
ISOAuto, 100, 200, 400, 800
LCD brightness adjustmentHigh, medium, and low levels
Light source frequency50HZ/60HZ
Storage32G TF memory card
Language settingChinese / Traditional / English / Japanese / Italian / French / German / Russian / Spanish / Portuguese
Voltage3.7V
Power supply18650 internal battery
Charging5V/1A TYPEC
Screen1.54 inch HD IPS
Temperature-5~40℃
Humidity0-80%
Size152x42x82mm
Weightabout 240g
Final summary

Final Verdict: FNIRSI NVS-20

The FNIRSI NVS-20 monocular stands out as an exceptionally cost-effective and highly functional night vision device, perfectly bridging the gap between basic optical aids and professional-grade equipment. Its ability to deliver clear, high-resolution imaging in complete darkness up to 300 meters, coupled with 4K video recording and 36MP photo capabilities, makes it an outstanding choice for hobbyists, outdoor enthusiasts, and even semi-professional users involved in hunting, camping, wildlife observation, or basic security. While some minor drawbacks like non-hideable screen indicators and a plastic build are noted, these are largely overshadowed by its impressive performance-to-price ratio and comprehensive feature set, including IPX6 water resistance and included storage. For anyone seeking to extend their visual capabilities into the night without breaking the bank, the NVS-20 offers unparalleled value and reliability, making it a highly recommended investment for nocturnal adventures. For more in-depth analyses, visit andibond.com.

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