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| Customization: | Available |
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| After-sales Service: | Shipping damage is refundable |
| Warranty: | 1 year |
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PVS31 is a high performance binocular night vision device. It is featured by high resolution optics, compact housing and ultra light weight. It can be installed with Gen2+ multi-alkali cathode or Gen3 gallium arsenide cathode intensifier tubes. The system image resolution can be as high as 72 lp/mm, and FOM as high as 3000, depending on tubes installed. Unlike similar legacy systems, the PVS31 lenses are designed with quick disassembly features. This innovation allows users to field-stripe the lenses and tubes for maintenance and trouble shooting. With optimized structure and patented material, the system weight is below 450g (w/ tubes and w/o battery). With the high image quality, ultra low weight and robust structure, the PVS31 allow its users to train and operate under complex scenarios and harsh conditions. It is especially helpful in improving situation awareness and combat effectiveness of special force units.

Shell Material: Matte black, corrosion-resistant, fibre reinforced nylon material
Weight: ≤450g
Dimensions:≤105*120*87mm(L*W*H)
Mount:Wilcox standard Dovetail
Image Intensifier Tube:Gen2+/Gen3 18mm MX10160/MX11769 tube (P20 Green/ P43 Green/P45 White)
Diopter:Replaceable diopter lenses
FOV:40°± 2°
Focus Length: 30cm to infinity
Magnification: 1.0x
Waterproof:IP67 (IP68 upgrade is available on user's demand)
Pivot Angle of Pods:≥130°
Environmental Adaptation: Working temperature: -40ºC ~60ºC; Storage temperature: -55ºC ~70ºC
Battery Life: Single AA≥15 Hours, or External Battery Pack≥50 Hours (normal temperatures) Universal Strobe Battery Pack: Fischer cable, 4 AA batteries
Smart Functions: Automatic sleep and wake-up Automatic flip-up power-off and flip-down power-on Personalizing default brightness of manual gain tubes Fast cancellation of function settings
1)Flip Up Power Off When the device is installed on a helmet or head mount, it will automatically turn off after it is completely flipped up over head. When the device is flipped down, it will automatically turn on. It will only turn off when it the flipping angle is greater than the predefined threshold, therefore, raising head will not turn off the device.
2)Dormancy The gravity sensor checks its posture all the time. If the device stay still for more than 100 seconds , it will automatically go dormant to save power and protect the tube from long-time burning damage until the device is waken up by new movements.
3)IR flood light After powering on, press the power button twice, the red LED on the right pod will flash twice, and the red LED on the left pod will keep shining. At the same time, the IR flood light will be turned on. Press the power button twice again, the IR flood light will be turned off and the indicator light in the pods will to turned off too.
4)Manual Gain Control After correctly installing different 37mm manual gain tubes (i.e. Photonis and NNVT three-pin tubes, US MX-11769 tubes and tubes with flying wires) according to our tube installation manual, the user can rotate the power switch clockwise and anti-clockwise to manually control the intensifier's gain features.

West Line Protection specialize in the production and sale of all kinds of ballistic helmets, including Fast Helmet, Mich Helmet, PASGT Helmet, Wendy Helmet and so on.
Our bullet proof helmets are design for Battlefield Protection, Corrections Officers, Law Enforcement, Counter Terrorism operations, Tactical purpose, Special Forces, Ground Troops, etc. You can choose various styles of helmets from West Line Protection.
FAST Helmet:
MICH Helmet:
PASGT Helmet:
Wendy Helmet:
→ Click to View More Ballistic Helmets and Tactical Gear!
West Line Protection are the professional supplier & manufacturer of various tactical vests/jackets, plates, helmets, anti-riot gear and logistics articles over teens years.
Our tactical vests are design for Battlefield Protection, Corrections Officers, Law Enforcement, Counter Terrorism operations, Special Forces, Ground Troops, etc. You can choose various styles of vests from West Line Protection.

→ Click to View More Vests and Tactical Gear!
The predecessor of West Line Protection is a manufacturer with over ten years' experience in synthesizing high-performance PE for industrial and tactical application in Hebei province. Thanks to the intimate relationship with local colleges and institution. West Line Protection mastered the technologies for PE fabrics and received orders from partner enterprises and customers. With the improvement of our technology and enrichment of partner members, we were invited in a collaboration to develop aramid fabrics and, later, co-founded aramid factory with peer enterprises to satisfy our customers domestic and overseas.
Now we have gained the mastery of both necessary fabrics, providing our customers protection in both prevalent products and customized tactical products (more lead time), anti-riot products, and even basic materials in ultra high molecular weight PE or aramid fabric. Still we are cultivating for more technology in protection industry.


Q1: Are you a factory or trading company?
A1: We are factory supplier.Our office located in Beijing.Welcome to visit us.
Q2: Which products do you manufacture?
A2: From tactical products, biochemical protection products, all kind of uniforms, boots & shoes, bags & backpack, tactical products to all kind of accessories.
Q3: What is the min. of quantity?
A3: The MOQ is one piece.
Q4: Can I just buy a sample before place an order?
A4: Of course. We accept any test of our products.Our mass production will be 100% same as the samples.
Q5: What is the payment method and payment term?
A5: We accept both T/T payment and L/C payment. If you have any other payment requirements,please leave message or contact us directly.
Q6: Can you provide OEM service?
A6: We have our own tailors and designers who can quickly pattern your products according to your requirements.
Q7: How can you ship the goods to my country?
A7: By Express, by Sea or Air. CIF is the better choice.
Q8: Do you have E-Catalogue?
A8: Yes, you can always contact us for the latest version.
Q9: What is the warranty of the goods?
A9: 5 years.