GSCI PVS-31C-4B Tactical Dual-Tube Night Vision Goggles with Push Button Controls

Description

Product Highlights

Push Button Controls
Ultra-Lightweight and Compact
Dual-Tube Observation
Standard Black Colour; Custom TAN Colour
Exceptional Situational Awareness
Stow Safety and Flip-Up-Off Features
GSCI-VIVID Premium Optics Upgrade (PVS-31CL-4B)
Extended Range Observation
Rugged Aluminum Enclosure

Experience the superior situational awareness of the PVS-31C-4B, proudly made by GSCI Advanced Photonics. This dual-tube goggle system has an ergonomic low-profile design and is equipped with the latest technological advancements and perfected over 30 years of GSCI’s engineering experience. Built for durability, it includes a lightweight and rugged housing combined with advanced multi-coated optics for exceptional image quality and can withstand up to the weight of a pick-up truck and a drop from two meters.

Other unique operational features, such as instant IR [Morse Code Capability], standard IR [Map Reading / Zero Light Capability], external battery power port, flip-up off, selective channel engagement and stow safety provide remarkable performance and reliability.

With an array of optional accessories including magnification lenses, head mounting systems, battery packs (Including MVP-240), and recording devices, the unit accommodates 1xAA and 1xCR123 batteries. This NVG has emerged as the preferred choice among numerous users, including law enforcement, and military agencies worldwide.

Features

Push Button Controls
Ultra-Lightweight and Compact
Dual-Tube Observation
Standard Black Colour; Custom TAN Colour
Exceptional Situational Awareness
Stow Safety and Flip-Up-Off Features
GSCI-VIVID Premium Optics Upgrade (PVS-31CL-4B)
Extended Range Observation
Rugged Aluminum Enclosure
SPECIFICATIONS
Optical Magnification: 1X (Unity)
Objective Lens System: 27mm Focal Length, f/1.2
Field-Of-View (FOV): 40°
Focusing Range: 0.25m .. Infinity
Diopter Adjustment Range: -6 .. +4
Interpupillary Adjustment Range: 50mm .. 90mm
Built-In IR Illuminator: Yes
Momentary IR-On Button: Yes
IR-On Indicator: Yes
Manual Gain Control: Optional *
Light Overload Protection: Yes Automatic Shut-Off
Any Polarity Battery Insertion: Yes
Stow Safety Feature: Optional
Selective Channel Engagement: Yes
Power Source: 1pc AA or 1pc CR123
Battery Life: Up to 40 hours
External Power Supply Voltage: 4VDC .. 16VDC
Environmental Protection: IP66 or Better (Optional)
Dimensions: 112x105x70mm
Weight: 650 grams
Operating Temperature: -40°C .. +50°C
Warranty: 7 Years, Limited

Most Popular Options & Accessories

GR8™ – Advanced Helmet Mount
MVP-240 – Multi-Voltage Battery Pack
TICON – Thermal Clip-On Attachment for Night Vision
HMH-1 – Helmet Mounting Harness
NVR-714D – Digital Recorder

In the Box

Dual-Tube Night Vision Goggles Dovetail Bracket (Pre-Installed)
Rubber Eyecups (2pcs, installed on the device)
Sacrificial Window (2pcs)
Stow Safety Feature (Integrated)
AA Battery Extension Adapter (Installed on the device)
Rubber Daytime Filters with Training Hole (Installed on the device)
Adjustment Kit (Alley Ley + Mini-Wrench)
Neck Cord
USB Power Cable
Soft Carrying Pouch
User Manual
Cleaning Kit (3-in-1 Multi-Pen + Soft Cleaning Cloth)

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Struggling to decide on which image intensifier tube choice is best for you? We've done the hard work and put a piece together explaining everything you need to know about GSCI intensifier tube's, specifications, technical terms and more - click here.

Pros and cons for ECHO when compared to high-end devices (Gen3 FOM 2100+, 4G etc)

Cons

ECHO is commercial grade, when 4G & higher FOM devices are considered to be mil-grade. What does that mean? Mil-grade requirements does not allow black-spots to be in the first nor second sector. Therefore, all tubes that have black-spots in those sectors, are pushed to commercial grade. As a result, rarely you can find an ECHO without blackspots, because otherwise that tube would classified as mil-grade tube.

How much does it affect you? The less light there is, the less visible black spots are. You will be able to see those tiny dots, but when game is on, those spots have never borthered me.

Pros

Similar performance - The Gen3 we had in comparison costs about 60% more, but delivers only slightly better performance than ECHO.
Faster auto-gated - as you can see from video, the halo-size (size of bright light) is smaller with Photonis tube. Thats due to much more efficient autogating. So, in high light conditions ECHO/4G tube will outperform Gen3 tubes.

Conclusion

One might say that ECHO was filmed from closer range (guys moved around when I changed devices). Still, we can say that both devices have pretty similar performance – both devices had noise due to low-light, but the noise on ECHO wasn’t worse compared to high-end / mil-grade Gen3.

When buying commercial grade night-vision like ECHO, you shouldn’t expect clean tubes. There will be black-spots. Otherwise, it would not be so cheap compared to mil-grade tubes.

If your life does not literally depend on it, buying ECHO will definitely save you some money while giving similar level of performance.

Image Intensifier Tubes of Generation III = ECHO, SuperGen®, XD-4™, XR5™

Gen. III tubes differ from the Gen. II+ tubes by their construction of the cathode. Gen. III tubes have a Gallium-Arsenide cathode (GaAs) with more sensitivity for IR-light. The light amplification is around app. 30000 up to 55000 times, the photosensitivity of the cathode is around 900 – 1600 µA/Lm at 2850K and the resolution of the line pairs is 32 – 64 lp/mm (omnibus 1 and omnibus 2 where developed end of the 70s, omnibus 3 and omnibus 4 is a further development of the late 80s. Omnibus 7 is currently* the most powerful Gen. III tube with a FOM value of app. 2300). The performance of Gen. III tubes may vary, depending on type and specifications (omnibus 1 up to currently* 7 Pinnacle), by circa 300%. The life expectancy is around 10000 up to 15000 hours, which is 3 – 4 times longer than the Gen. II tubes. Devices with Gen. III tubes are operating excellent in extremely low ambient light (residual light). The observation image is saturated, sharp, with excellent contrast and recognition of also smallest details. ECHO, XD-4™ and XR5™ tubes with an AUTO-GATING function are excellent suitable for operations in urban area.

Photonis 4G NIGHT VISION Standard defines the minimum performance specifications giving end-users the capability to operate MULTI-MISSION NIGHT VISION. 4G NIGHT VISION Standard also implies a modification of the Military Standards of Night Vision testing. From the lowest light levels of desertic areas in Afghanistan (defined at Night Level 6 or less than 100µlx) up to the very demanding aerial applications.
4G NIGHT VISION Standard is not about Technology, it is all about performance and capabilities delivered to end-users. Challenging the Complexity of Light.
1 - An Extended Bandwidth
An Extended Bandwidth of photon collection to deliver a consistently high image quality in all environments (from below 400nm to above 900nm)

2 - High FOM
A FOM (figure of merit being Signal to Noise Ratio times the Resolution : SNR* R) above 1800.

3 - High resolution
A Resolution always superior to 57 lp/mm even in the most polluted light environments such as urban areas or when entering a building where the light is suddenly switched on

4 - Small halo
A Halo size never larger than 0.7mm around the brightest objects seen in the image to provide the highest details around the light sources

Elite : High Figure of Merit (FOM) 2200+ resolution option
ONYX : Black & white vision, white phosphor option

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GSCI PVS-31C-4B Tactical Dual-Tube Night Vision Goggles with Push Button Controls

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