OURS
NIGHT OPERATORS, DIRECT
$8,299.95
Two Gen 2+ tubes, 1400-1550 FOM, 640 thermal built in. Battery pack, hard case and soft pouch in the box.
Pick your tier[NEW] DFB-31 Gen 2+ Dual Fusion Night Vision Binocular w/ 640 Thermal & G24 Mount
[NEW] DFB-31 Gen 2+ Dual Fusion Night Vision Binocular w/ 640 Thermal & G24 Mount
Two eyes under REAL Analog Gen 2+ night vision, with a 640 thermal built in.
FOM GUARANTEED W/ SPECS
640 x 512 THERMAL FUSED IN
BUILT TO ORDER / SHIPS WORLDWIDE
INTENDED USE WARNING: Observation use only. Not certified or intended for use by pilots in the operation of aircraft or ground vehicles on public roads.
Illustration, not a photo through that exact tube.
Built to order. Your tubes are fitted and the unit is tested after you order. It ships about 5 to 7 weeks from your order date.
Duty free to the USA: US orders pay no duties or import fees. Outside the USA, any duties or import fees are paid by the buyer.
17,000+ ORDERS SHIPPED SINCE 2023
Night vision onlyILLUSTRATION
Illustration. White hot and fire: seen in maker footage, not in the manual.
Night Operators DFB-31, Gen 2+ dual-tube night vision binocular with built in 640 thermal, direct from us
NEW · NIGHT OPERATORS DFB-31
$45,000+$8,299.95.OURS. DUAL TUBE. 640 THERMAL FUSED IN. DIRECT.
The military fused binocular lists from $45,188 at US dealers, read 13 Oct 2026.
Real Gen 2+ dual tube analog binocular with a 640 x 512 thermal sensor built into the bridge. Every warm body is laid over your tube image, so a person in the tree line or an animal in tall grass jumps out while you keep all the night vision detail. Battery pack, hard case and soft pouch included in the box. Built to order and tested before it ships, direct from us.
GET OUR DFB-31 HERE →
MILITARY FUSED BINOCULAR
$45,000+
NIGHT OPERATORS · DIRECT
$8,299.95
1400-1550 FOM · BATTERY PACK INCLUDED
We've been the civilian direct play for digital night vision since 2023. 17,000+ orders shipped. 5,000+ verified reviews. The DFB-31 is our first fused thermal plus tube binocular. Same direct supply chain economics.
Two real Gen 2+ tubes, one per eye, with a 640 x 512 thermal sensor built into the bridge. One goggle, one battery pack, nothing to clip on or line up. $8,299.95. Civilian direct. Built to order and tested before it ships.
This is the receipt for everything we've been telling you.
Without fusion. With it.
Left: the tube alone. Right: the same view with the DFB-31 thermal fused on top, so warm targets stand out. Pictures are illustrations.
WithoutWith DFB-31
Highlight mode, red
Drag to compare
WithoutWith DFB-31
Full fusion, fire palette (seen in maker footage)
WithoutWith DFB-31
Outline mode
Slide the tube grade.
The heat stays the same.
Four figure of merit tiers. Drag the handle and the tube picture gets cleaner as the figure of merit rises; the thermal layer does not change. Pictures are illustrations.
ILLUSTRATION
OUR DFB-31 $8,299.95DUAL TUBE + BUILT IN THERMAL
- 640 x 512 THERMAL BUILT IN
- TWO GEN 2+ TUBES
- L4 G24 INTERFACE
- 8 H FUSED / 80 H NV ONLY
- IP67
OUR DFB-31 $8,299.95DUAL TUBE + BUILT IN THERMAL
- 640 x 512 THERMAL BUILT IN
- TWO GEN 2+ TUBES
- L4 G24 INTERFACE
- 8 H FUSED / 80 H NV ONLY
- IP67
640 x 512
Thermal built into the bridge, 60 Hz
40° PER EYE
Two Gen 2+ tubes, 18 mm
UNDER 30 MS
Thermal blended over the tube picture
We're new in this tier.
Here's why that's not a problem.
We've been the civilian direct play for digital night vision since 2023: 17,000+ orders shipped, 5,000+ verified reviews. The DFB-31 is our first fused thermal plus tube binocular. Same direct supply chain economics, built to order and tested before it ships. Here is the basis for trusting us on a $8,299.95 purchase.
$8,299.95
DIRECT PRICE
Civilian direct. The military fused binocular lists from $45,188 at US dealers, read 13 Oct 2026. Our 1400-1550 tier is $8,299.95.
FACTORY
BUILT TO ORDER
Tubes are fitted and the DFB-31 is tested after you order. Battery pack, hard case and soft pouch are included.
GEN 2+
REAL ANALOG GEN 2+
Real analog Gen 2+ image intensifier tubes, 18 mm, one per eye. The thermal channel is built into the bridge.
14-DAY
RETURN WINDOW
If the unit isn't what we said it is, request a return within 14 days of delivery. Defects reported within 7 days of delivery: repaired or replaced at our choice. Personal-preference return: 30% restocking fee. The full policy is in the FAQ.
Night Operators DFB-31
against the higher class.
The fused binoculars that cost more than ours are the military class: two tubes and thermal in one goggle, sold through US dealers. Prices as listed on each seller's page, read 13 Oct 2026.
US DEALER LISTING
From $45,188
$36,888 MORE THAN OURSThe military fused binocular, two tubes and thermal in one goggle. Listed out of stock, contact the dealer.
See the listing
THE MILITARY FUSED BINOCULAR, LE AND GOVERNMENT ONLY
$55,000
$46,700 MORE THAN OURSListed for law enforcement and government buyers only, lead time over a year.
See the listingRead 13 Oct 2026. A third US dealer lists the same military binocular at $45,199.98 to $45,999.98 on back order (listing). DFB-31 1600-1800 FOM: $8,999.95. Same class does not mean the same specifications or package.
You're the buyer who did the homework on fused binoculars. You compared dealer listings, and what each one leaves out of the box. You looked at what was actually in the box. You want real analog night vision and thermal together, without something extra to clip on or line up. We built the DFB-31 for you.
Gen 2+ vs Gen 3:
same words, different tubes.
The DFB-31 uses real analog Gen 2+ tubes, not Gen 3. Its digital thermal channel is a separate layer blended over the tube image. Tube generation and thermal fusion are different things.
Gen 2+, what we ship, $8,299.95
REAL TUBE PHOTO- • Two analog image intensifier tubes
- • 18 mm tubes, one per eye
- • 40 degree night vision field of view
- • Built in 640 x 512 thermal
- • What we ship in the DFB-31
Gen 3, not the DFB-31 tube generation
REAL TUBE PHOTO- • Not the tube generation supplied here
- • No Gen 3 specifications implied
- • No Gen 3 tube option on this page
- • Check the required tube generation for your use
- • Real tube photo of the same scene, not DFB-31 footage
If you require Gen 3, this is not that product. The DFB-31 combines two real 18 mm Gen 2+ tubes with built in thermal, Highlight and Outline fusion, and a night vision only mode.
Heat on top of the tube picture.
Two fusion modes.
Highlight fills warm targets over the night vision image, the fastest way to spot a person or animal. Outline draws only their warm edges, keeping the night vision detail clear.
Highlight. Outline. Or night vision only.
The built in 640 x 512 thermal channel runs at 60 Hz and blends over the analog tube picture through a 1280 x 1024 OLED with under 30 ms of delay. One goggle, nothing to clip on or line up.
Mode
Thermal layer
Tube picture
Thermal on?
Highlight
Warm targets filled in
Tube scene stays visible
Outline
Warm target edges
Night vision detail stays clear
Night vision only
Thermal off
About 80 hours
Highlight
Layer
Warm targets filled in
Tube picture
Tube scene stays visible
Thermal
Outline
Layer
Warm target edges
Tube picture
Night vision detail stays clear
Thermal
Night vision only
Layer
Thermal off
Tube picture
About 80 hours
Thermal
Switch thermal off for night vision only and about 80 hours of runtime. With thermal on, runtime is about 8 hours from the external 2 x 18650 battery pack.
Why dual tube binocular
is the standard for helmet mounted ops.
Single tube monoculars (like our PVS-14) are the right call for handheld observation, entry tier helmet use, and buyers who prefer a single tube.
Dual tube binoculars are the right call when you need:
- →Depth perception in close quarter environments
- →Peripheral vision for threat awareness
- →Built in thermal fused over the tube picture
- →Both eyes under glass for natural scanning
The DFB-31 has two real 18 mm Gen 2+ tubes, one per eye, with a 40 degree night vision field of view. Its thermal channel is built into the bridge.
If you already own a PVS-14 or PVS-31, consider our ADV-COTI clip on first. The DFB-31 is for both eyes and thermal in one sealed unit from day one.
ILLUSTRATIONFIELD OF VIEW
40 degrees per eye
DFB-31: a 40 degree night vision field of view per eye. See how 40 degrees compares with 50 and 97 on the GPNVG-18 page.
Compare fields of viewWhat fused binocular buyers use the
Night Operators DFB-31 for.
Find the warm target. Keep the surrounding terrain readable.
ILLUSTRATIONTHE HUNTER WHO NEEDS TO FIND THE ANIMAL FIRST
Heat shows a hog or coyote in cover before tubes alone would. The night vision around it shows the ground, the fence and the backstop.
ILLUSTRATIONTHE PROPERTY OWNER WALKING THE LINE AT NIGHT
A warm body near the barn or fence stands out at a glance, with depth on both eyes.
ILLUSTRATIONTHE SEARCH AND RESCUE VOLUNTEER
A person in brush or snow shows as heat while the tubes keep the terrain readable.
ILLUSTRATIONNIGHT NAVIGATION ON FOOT
Walking trails and fields at night with both eyes under tubes and warm bodies lit up at a glance.
Already own our PVS-31 PRO?
Here's when the DFB-31 makes sense.
If you already own our PVS-31 PRO or PVS-14, a clip on thermal is often the better buy. Three ways to build your night setup, at the 1600 tier, prices as listed on our pages today.
PVS-31 PRO, 1600 FOM
$4,449.95
- Two Gen 2+ tubes, no thermal
- 50 degree night vision per eye
- The widest view for the money
PVS-31 PRO 1600 + ADV-COTI
$7,449.90
- 640 thermal in front of one tube
- Thermal moves to a PVS-14
- Kit price on the ADV-COTI page
DFB-31, 1600-1800 FOM
$8,999.95
- 640 thermal built in, both eyes
- 40 degree night vision per eye
- Nothing to mount or line up
Honest disqualification.
This product isn't for everyone. Here's when you shouldn't buy:
→You already own our PVS-31 or PVS-14. The ADV-COTI clip on adds heat to it for far less.
→You only want thermal. A standalone thermal like our PREDATOR is the simpler buy.
→You want the widest night vision view. The PVS-31 PRO gives 50 degrees per eye against 40 degrees on the DFB-31.
If you want both eyes and thermal in one sealed unit from day one, the DFB-31 is what we built.
Compare Gen 2+ with Gen 3The full spec sheet.
Nothing hidden.
Real analog Gen 2+ night vision, one image intensifier tube per eye. The built in thermal sensor feeds a 1280 x 1024 OLED and blends the thermal picture over the tube image with under 30 ms of delay. The specifications below follow the maker's spec sheet.
WHAT IS IN THE BOXTAP TO ZOOM
In the box: the DFB-31 binocular, the external battery pack with its coiled cable, the padded soft pouch and the hard shell carrying case. Picture made from the maker's renders and a real photo of the kit.
Product Features
- +Two analog tubes, one per eye
- +Thermal built into the bridge
- +Highlight and Outline fusion
- +Night vision only mode
- +Adjustable brightness gain
- +Bright light protection
- +Built in digital compass
- +Pod flip-up and side shutoff
Packing List
- Night Operators DFB-31 with built in thermal
- x1
- External pack (takes 2 x 18650) with coiled cable
- x1
- Padded soft pouch
- x1
- Hard shell carrying case
- x1
Performance index
NIGHT VISION
- Night vision
- Two Gen 2+ analog image intensifier tubes, 18 mm
- FOM
- FOM1400 / FOM1600 / FOM1800 / FOM2000 (our tiers: 1400-1550, 1600-1800, 1800-1950, 2000-2100)
- Gain
- Adjustable brightness gain
- Bright light protection
- Yes
- Night vision field of view
- 40 degrees
- Magnification
- 1x
- Focus range
- 250 mm to infinity, manual
- Exit pupil distance
- 25 mm
- Eye spacing range
- 55 to 72 mm
- Diopter
- -4 to +2
THERMAL AND FUSION
- Thermal resolution
- 640 x 512 pixels, 12 µm
- Thermal field of view
- 24 x 20 degrees
- Thermal refresh
- 60 Hz
- Fusion modes
- Highlight, Outline
- Fusion delay
- Under 30 ms
- Screen
- OLED, 1280 x 1024
BODY AND POWER
- Power
- External battery pack, 2 x 18650, on a coiled cable
- Runtime
- About 8 hours with thermal on, about 80 hours night vision only
- Auto power off
- Each pod shuts off when flipped up or turned on its side
- Dimensions (W x H x D)
- 105 x 110 x 87 mm
- Weight
- <540 g (no battery)
- Operating temperature
- -40C to +50C
- Water and dust
- IP67
INTERFACE
- Compass
- Built in digital compass
- Helmet interface
- L4 G24 pattern
Questions buyers ask before
ordering the Night Operators DFB-31.
Here's what happens
if you order today.
Real Gen 2+ tubes. 40 degree night vision field of view. Built in 640 x 512 thermal. Battery pack, hard case and soft pouch in the box. Pick your FOM tier, add the optional helmet if you need it.
- 01ORDER
Choose your FOM tier and receive your order confirmation. The delivery estimate shows before you pay.
- 02BUILD
The tubes are fitted and your DFB-31 is tested after you order.
- 03SHIP
Ships in about 5 to 7 weeks with tracking; we work to the estimate shown before you pay. Duty free to the USA; outside the USA, duties or import fees are paid by the buyer.
- 04EMAIL
Questions? Email info@nightoperators.com and a person answers.
IN THE BOX
WHICH TIER
Most start at 1400-1550: the thermal does the finding, the tubes give the scene.
- 1400-1550 FOM
- $8,299.95
- 1600-1800 FOM
- $8,999.95
- 1800-1950 FOM
- $9,999.95
- 2000-2100 FOM
- $11,699.95, sold out
Try it for 14 days. If it isn't what we said it is, request a return within 14 days of delivery. Defects reported within 7 days: we repair or replace it. Every order comes with our 3-month hardware warranty.
DUAL FUSION
BEST FOR:
Both eyes and thermal in one sealed unit from day one. One goggle, one battery pack, nothing to clip on or line up.
FOM (CLARITY)
Most start here. The thermal does the finding, the tubes give the scene.
MILITARY FUSED BINOCULAR AT US DEALERS: FROM $45,188
DUAL TUBE
40° NV
THERMAL + BATTERY
$8,299.95TOTAL
- Real analog Gen 2+ tubes, 18 mm, one per eye. 40 degree night vision field of view.
- Built in 640 x 512, 12 micron thermal at 60 Hz. 1280 x 1024 OLED, under 30 ms fusion delay.
- Highlight, Outline or night vision only. About 8 hours thermal on or 80 hours NV only.
- External 2 x 18650 battery pack with coiled cable, hard shell case and padded soft pouch included. L4 G24 pattern helmet interface.
- Built to order and tested. Ships about 5 to 7 weeks. Duty free to the USA. Outside the USA, duties or import fees are paid by the buyer.
COMPLETE YOUR SETUP, OPTIONAL
GEN II FAST SF VENTED HELMET+$149.95
Vented shell · Memory-foam pad · ARC rails · Non-ballistic
14-day return window. Defects reported within 7 days: repaired or replaced. Personal-preference returns: 30% restocking fee. 3-month hardware warranty.
L4 G24 pattern helmet interface. The same pattern as our PVS-31 PRO mount. Check your helmet mounting interface before ordering.
Other Night Operators Setups
Consider the ADV-COTI clip on to add thermal you can move between your night vision units.
Want thermal as a standalone?
Our PREDATOR is the simpler buy if you only want thermal.
Want the widest night vision view?
Our PVS-31 PRO gives 50 degrees per eye, compared with 40 degrees on the DFB-31.