The 6 Best Thermal Binoculars for Wildlife Watching After Dark

See nature in a whole new light—literally.

Thermal binoculars are changing the way we experience wildlife and nighttime observation. Unlike conventional lightweight binoculars that rely on light, thermal models detect heat, allowing you to spot animals in total darkness. These devices are ideal for nature-watchers, birders, search-and-rescue teams, and anyone exploring the outdoors when the sun goes down.

But not all thermal binoculars are created equal. Some models only offer thermal imaging, while others combine it with digital night vision—giving you more detail, better identification, and a full picture of your surroundings. If you’re looking for binoculars that also let you see in low light through a camera sensor, look for those with a dual-channel system or IR-assisted night vision.

In this guide, we’ve rounded up 6 of the best thermal imaging binoculars and highlighted which ones offer night vision modes in addition to thermal to help birders, nature lovers, and outdoor explorers find the right one for their needs. They’re not cheap—prices start around $1,500 and can go well above $4,000—but during big sales you might be able to snag a great deal.

Let’s take a look at how thermal imaging works, what makes a great pair of thermal binoculars, and which models are worth your attention.

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What’s the Difference Between Night Vision and Thermal Imaging?

Before we dive into the list, it helps to understand the tech.

• Night vision binoculars require at least a little ambient light—like moonlight or starlight. They amplify that light so you can see in the dark.
• Thermal imaging binoculars don’t need any light at all. They detect infrared radiation, which is essentially the heat emitted by warm-blooded animals, vehicles, or people. You’ll see a high-contrast image, often with heat sources appearing as white, yellow, red, or purple tones.

Both technologies have their uses, but for wildlife watching—especially in total darkness—thermal is king. It’s especially handy if you’re scanning for owls, foxes, deer, or other nocturnal creatures.

What to Look for in Thermal Binoculars

Here are a few key features that matter:

• Thermal resolution: The sharper the sensor, the more details you’ll see.
• Range: How far can it detect a warm object? Some models can spot heat signatures over 1,000 yards away.
• Digital zoom: Important if you want to get a closer look without moving.
• Battery life: Some models last just a few hours, while others can run all night.
• Weatherproofing: If you’re out in the field, waterproof and rugged housing is a must.
• Recording and streaming: Some high-end models let you capture photos or video or stream your view to your phone.

1. ATN Binox 4T 640 2.5–25x

Top-Tier Smart Thermal Binoculars with All the Extras

The ATN Binox 4T 640 is one of the most capable thermal binoculars on the market, and it’s easy to see why it’s a favorite among serious birders and outdoor enthusiasts. With its high-resolution 640×480 thermal sensor, you’ll get clear, detailed heat signatures even in complete darkness or thick brush. The 2.5–25x digital zoom offers both wide and close-range flexibility, allowing you to track movement from across a field or focus on specific wildlife up close. Whether you’re scanning for owls, deer, or nocturnal birds, this binocular gives you reliable thermal vision with sharp contrast.

But this binocular isn’t just about optics—it’s packed with smart features too. You can record HD video at 60fps directly to a microSD card and stream live footage to a smart device at the same time thanks to the Obsidian IV Dual Core processor. A built-in laser rangefinder measures distances up to 1,000 yards/meters, making it easy to judge how far away your target is. Plus, the onboard e-compass, 3D gyroscope, and IR illuminator provide extra support for navigation and team spotting in the field. The Ballistic Information Exchange (BIX) system also allows it to communicate with other ATN smart devices—though this is more useful for those who pair it with scopes.

The 16+ hour battery life is impressive, especially for extended night watching sessions or weekend outings. Comfort-wise, it’s thoughtfully designed with interpupillary adjustment and good eye relief, making it suitable for all users, even those who wear glasses. Multiple color modes (White Hot, Black Hot, and color palettes) help you adapt your view to different conditions. While it’s a larger and more premium model, the performance and technology packed into the ATN Binox 4T 640 make it one of the best investments you can make if you’re serious about thermal wildlife observation.

✅ What We Love

• Excellent image clarity with a high-resolution 640×480 thermal sensor
• Long detection range with precise 2.5–25x magnification
• Built-in 1,000-yard laser rangefinder for accurate distance reading
• Records HD video at 60fps and streams live to a smart device
• Built-in e-compass, 3D gyroscope, and IR illuminator
• Long-lasting battery with 16+ hours of operation
• Smart features like BIX communication with other ATN gear
• Comfortable to use with interpupillary adjustment

⚠️ Things to Consider

• Expensive – priced for serious users and professionals
• Slightly bulky and heavier than entry-level binoculars
• Weather-resistant but not fully waterproof
• Some features (like BIX) are more useful if paired with other ATN devices

Specifications – ATN Binox 4T 640 2.5–25x

Bottom Line

The ATN Binox 4T 640 is a professional-grade thermal binocular system that offers exceptional clarity, long-range accuracy, and a full suite of smart features. For those looking to explore nature beyond daylight hours, it’s one of the most complete packages you can buy—especially if found at a discount during major sales.

2. Pulsar Merger LRF XP50 Thermal Binoculars

Built for precision, comfort, and long nights in the field

The Pulsar Merger LRF XP50 thermal binoculars are made for those who take their observation seriously—whether you’re tracking wildlife through foggy hills, scanning woodlands at dusk, or simply watching nature after dark. These are not entry-level optics. They’re premium, professional tools that bring outstanding image quality, smart design, and long-range thermal power to your outdoor kit.

Unlike monocular-style thermal viewers, the Merger uses a dual eyepiece layout, which is far more comfortable for extended use. The human brain naturally prefers binocular vision—using both eyes—so this setup dramatically reduces fatigue, especially during long observation sessions. If you’ve ever felt strain using a single-lens thermal viewer for too long, you’ll immediately notice the difference with the Merger. Add in customizable interpupillary distance adjustment, and it fits most users comfortably without causing double vision.

Image quality is where the Merger XP50 truly shines. It uses a 640×480 thermal sensor with <25mK NETD sensitivity, allowing it to capture even minor differences in heat. That means animals hidden in brush, small birds in trees, or distant movements on cool backgrounds are rendered clearly—even in fog, light rain, or low contrast scenes. It also features a built-in laser rangefinder with up to 1,000 meters of accurate distance reading, making it easy to estimate how far away an animal is before you make a move.

With Stream Vision 2 and Wi-Fi, you can connect the binoculars to your phone to stream your view live, control settings remotely, or transfer photos and videos in real time. Battery performance is solid, too: a built-in 4 Ah battery plus a removable 3.2 Ah battery gives you up to 10 hours of continuous use—perfect for overnight birding or backcountry exploration.

And while it’s not the cheapest option, the Pulsar Merger XP50 is built to last, perform, and impress. If you’re looking for a professional-grade tool that helps you stay out longer, see more clearly, and get more from your night-time wildlife experiences, this is one worth considering.

✅ What We Love

• Exceptional thermal sensitivity and image clarity
• Dual eyepiece design reduces fatigue over long use
• Built-in laser rangefinder up to 1,000 m
• Detects heat signatures up to 1960 yards away
• High-quality thermal sensor with enhanced processing
• Comfortable fit with adjustable interpupillary distance
• Dual battery system for extended field sessions
• Stream Vision 2 app for wireless control and sharing

⚠️ Things to Consider

• High-end price—designed for advanced users
• Slightly heavy due to solid construction and large lenses
• Export restrictions apply (for U.S. buyers or international shipping)
• Not intended for casual or lightweight travel

Main Specifications – Pulsar Merger LRF XP50

Bottom Line

The Pulsar Merger XP50 isn’t for everyone—but if you’re serious about wildlife tracking, birding in low light, or want a rugged all-weather thermal solution with excellent visuals, this is one of the best you can get. The thoughtful design and premium internals make it a comfortable, powerful, and future-proof thermal binocular that truly earns its price.

3. ATN Binox 4T 384 2–8x Thermal Binoculars

Smart thermal imaging for nature lovers, families, and outdoor explorers

The ATN BinoX 4T 384 2–8x is a more affordable alternative to ATN’s flagship 640 model, offering many of the same powerful features—thermal imaging, HD video recording, laser rangefinding, and live streaming—but in a lighter, simpler package that’s easier to use and easier on your budget.

Built with a 384×288 thermal sensor, this binocular still delivers sharp thermal imagery and smooth digital zoom. The 2–8x magnification range allows you to track wildlife at mid-range distances without distortion or image lag. Whether you’re birding in the woods, spotting deer in a clearing, or just curious about what’s moving in the brush after sunset, this binocular gives you a clear view—even in complete darkness.

One of the standout features is the multi-purpose laser rangefinder. It’s incredibly handy for birders, wildlife photographers, or even golfers looking to judge distance. With just a single press, you’ll get an accurate read on how far away your subject is—no second-guessing or extra gear needed. For birdwatchers who want to keep track of how far out that hawk or egret really is, this feature is a game-changer.

Like its bigger sibling, this model supports full HD video recording and live streaming via built-in Wi-Fi. You can stream your view to a smartphone or tablet using the ATN app (available on iOS and Android), which is especially fun when birding or stargazing as a group. It also saves metadata like e-compass heading, zoom level, distance to target, and 3D orientation—helpful if you’re logging wildlife behavior or creating nature footage.

And despite all the tech packed in, the BinoX 4T 384 offers up to 16+ hours of runtime on a single charge. That’s more than enough for a long day hike, overnight camp, or dusk-to-dawn birdwatching session. Its interpupillary adjustment and comfortable eye relief also make it accessible for a wide range of users, including kids. That makes it a rare piece of advanced gear that the whole family can enjoy using together.

✅ What We Love

• Affordable way to experience thermal imaging
• Accurate laser rangefinder with one-click use
• Live streaming and full HD video recording
• App control via iOS/Android for remote viewing
• Metadata overlays: compass, gyroscope, zoom, distance
• Lightweight compared to high-end thermal models
• Long 16+ hour battery life for extended outdoor use
• Family-friendly design with adjustable eye spacing

⚠️ Things to Consider

• Lower resolution than the 640 model
• Zoom range (2–8x) is more limited
• Not waterproof—handle with care in heavy rain
• Best for mid-range spotting, not extreme long-distance

Main Specifications – ATN BinoX 4T 384 2–8x

Bottom Line

The ATN BinoX 4T 384 2–8x is a great option for birders and nature watchers who want to experience the power of thermal imaging without breaking the bank. It’s user-friendly, packed with smart features, and ideal for medium-range spotting, especially when paired with the convenience of smartphone control and live sharing. A fantastic tool for families, beginners, or anyone looking to take wildlife viewing to the next level—day or night.

4. AGM Global Vision Voyage 384 Thermal & Digital Day/Night Vision Binoculars

Fusion imaging and extreme-range performance in one powerful package

If you’re looking for a thermal binocular that doesn’t stop at nightfall, the AGM Voyage 384 might be the most versatile model in your gear bag. This high-tech fusion binocular combines thermal imaging, digital day/night vision, and precise GPS-based orientation into one powerful, weatherproof system. Designed for professionals but accessible to serious nature lovers, this unit is perfect for spotting, scanning, and recording wildlife across long distances—even in tough weather or low-contrast conditions.

At the heart of the Voyage 384 is a 384×288 thermal sensor with NETD sensitivity under 20 mK. That means you’ll be able to detect even faint heat differences—crucial when animals are camouflaged or conditions are foggy, rainy, or dusty. But what makes this model special is its dual-spectrum fusion capability: you can view thermal and visible-light imagery separately or blend them together. This is especially useful when thermal highlights a target, and the visible-light sensor helps you identify it more clearly.

The Voyage also includes a long list of tools for precision and documentation. A built-in laser rangefinder reaches up to 1,000 meters with 1-meter accuracy. You’ll also find GPS, a digital compass, an inclinometer, and an IR illuminator for better visibility at night. With 64GB of built-in storage, you can capture and replay video or images directly from the device, or connect via Wi-Fi using the AGM Connect app for easy viewing on your smartphone or tablet.

Battery life is solid, with up to 8 hours of continuous use on three rechargeable 18650 batteries (included), and a power-saving proximity sensor helps extend runtime. It’s also rugged and field-ready with IP67 waterproof protection, making it suitable for search-and-rescue missions, wet-weather hikes, or just long birding sessions in unpredictable weather.

Whether you’re watching wildlife, navigating dark terrain, or capturing footage for research or media, the AGM Voyage 384 gives you the clarity, range, and features you need to do it all confidently.

✅ What We Love

• Fusion imaging: switch between thermal, digital, or both
• Detects targets up to 2,600 meters away in thermal mode
• Built-in GPS, compass, inclinometer, and IR for full situational awareness
• 64GB storage for videos and photos—review right on the device
• Includes laser rangefinder with 1,000m reach
• Wi-Fi hotspot support via AGM Connect app
• Proximity sensor to extend battery life
• Fully waterproof IP67-rated housing for rough conditions

⚠️ Things to Consider

• Battery life (8 hours) is decent but shorter than some competitors
• Fusion imaging adds complexity—may be more than casual users need
• Heavier than standard optics due to rugged build and tech inside
• Learning curve for full feature set

Main Specifications – AGM Voyage 384 Thermal & Digital Day/Night Binoculars

Bottom Line

The AGM Global Vision Voyage 384 isn’t just a thermal binocular—it’s a do-everything imaging system for the outdoors. With the power to detect heat signatures across vast distances and the added context of digital day/night vision, it’s great for serious wildlife watchers, hikers, rangers, and anyone needing reliable performance in low-visibility situations. Add in rangefinding, GPS, and on-board storage, and you’ve got a feature-rich tool that’s ready for adventure, rain or shine.

5. AGM Global Vision ObservIR LRF 25-256 5.5–22x Thermal & Digital Binoculars

Affordable thermal & digital fusion with impressive range and rugged protection

If you’re looking for a compact and rugged thermal binocular that combines multiple technologies without the premium price tag, the AGM ObservIR LRF 25-256 might be your best value pick. With a dual-spectrum imaging system, long-range capabilities, and a full set of smart features, it’s built to handle both wildlife observation and more tactical or professional applications—without overwhelming your budget.

The ObservIR LRF features a 256×192 thermal sensor paired with a 3840×2160 ultra-low light CMOS day/night sensor, which gives you both thermal detection and digital clarity in one device. You can toggle between thermal and digital imaging depending on the conditions, or use them together for enhanced visibility. The 25mm f/1.0 Germanium lens keeps the image bright and responsive, while the 5.5–22x magnification gives you flexibility to adapt to changing distances and landscapes.

You’ll find a strong feature set packed inside: a built-in 1,000-meter laser rangefinder, IR illuminator, GPS module, digital compass, and a 64GB EMMC storage system for recording video and audio directly to the device. It even includes Wi-Fi hotspot capability and picture-in-picture mode for close-up inspection without losing your wider view. You can capture and replay images, or transfer them easily using the AGM app and USB-C connectivity.

Despite its affordable price, the ObservIR LRF doesn’t cut corners on durability. It’s IP67 waterproof and dustproof, rubber-armored, and built for real field use. Power-wise, you get up to 8 hours of battery life on standard 18650 rechargeable batteries (four included in the box), with an auto screen-off feature to save power when not in active use.

In short, this is a smart, capable binocular that works well for wildlife watching, trail monitoring, search-and-rescue, or just anyone who wants thermal plus digital night vision without spending $4,000. It’s not as high-res as premium models, but the features it offers at this price point make it one of the best-value thermal binoculars out there.

✅ What We Love

• Affordable dual-spectrum performance
• 5.5–22x zoom with long 3,937 ft detection range
• Day/night vision fusion with thermal and digital clarity
• Built-in 1,000 m laser rangefinder for precise distance measurement
• 64GB internal memory with video and audio recording
• Wi-Fi hotspot support for live viewing and downloads
• Fully waterproof and field-ready with IP67 rating
• Long-lasting operation with 8-hour battery life

⚠️ Things to Consider

• Lower thermal resolution (256×192) than high-end models
• Zoom and focus less refined at max range
• Shorter battery life compared to ATN models with internal power banks
• Requires some menu learning to make the most of dual-mode features

Main Specifications – AGM ObservIR LRF 25-256 Thermal & Digital Binoculars

Bottom Line

The AGM ObservIR LRF 25-256 is a feature-rich, dual-imaging thermal binocular that covers a wide range of needs—from wildlife tracking and nighttime navigation to more technical applications. It delivers a fantastic balance between affordability, smart features, and rugged usability, making it a top pick for adventurers, field workers, or hobbyists who want thermal and digital night vision in one tough, reliable unit.

6. Newcon Optik SENTINEL 640 9Hz Long Range Thermal Binoculars

Extreme-range thermal imaging for professionals and advanced users

The Newcon Optik SENTINEL 640 9Hz is in a class of its own. With a price tag just shy of $18,000, this isn’t your typical birdwatching tool. It’s a professional-grade thermal imaging binocular built for serious surveillance, security, border monitoring, and long-range reconnaissance—yet it has features that also appeal to advanced wildlife observers and expedition photographers who demand the best.

At the core of the SENTINEL 640 is a high-resolution 640×512 uncooled thermal sensor, delivering detailed, contrast-rich imaging even under the toughest conditions. Smoke, fog, total darkness, or heat haze—it doesn’t matter. The large Germanium lens gives this device an incredible detection range of over 2,500 meters, allowing you to spot movement far beyond what the naked eye or conventional optics could hope to reach.

The device uses a 9Hz refresh rate, which may sound low compared to 30 or 60Hz models, but is perfectly suited for steady long-range observation, target detection, and conserving battery life over prolonged missions. It’s optimized for accuracy, not speed—ideal when scanning terrain for long periods.

Comfort is also key. The SENTINEL offers long eye relief and adjustable diopter settings, so whether you’re wearing glasses or need custom focus, your view stays sharp and fatigue-free. Its 2x and 4x digital zoom lets you get closer to the target without losing clarity, and with 8 hours of continuous use, it won’t quit before you do.

Built to perform in extreme environments, the SENTINEL handles temperatures from -40°C to +50°C, making it a reliable choice for arctic fieldwork, high-elevation wildlife tracking, or desert night ops. Its silent operation and rugged housing ensure that you stay undetected and protected—whether you’re in tactical conditions or on a remote wildlife research trip.

✅ What We Love

• Long-range thermal detection up to 2.5 km
• Crisp image detail with 640×512 thermal sensor
• Designed for cold, harsh, and demanding environments
• Comfortable for long sessions with diopter adjustment and long eye relief
• Runs up to 8 hours on a single charge
• Quiet and discreet—no clicking or humming during operation

⚠️ Things to Consider

• Extremely expensive—aimed at defense and professional applications
• 9Hz frame rate limits fluid tracking of fast-moving targets
• No visible or fusion imaging—purely thermal
• Not designed for casual or entry-level use

Main Specifications – Newcon SENTINEL 640 9Hz Thermal Imaging Binoculars

Bottom Line

The Newcon SENTINEL 640 9Hz isn’t for everyone—but it’s exactly what some users need. If you’re working in border security, tactical operations, or managing long-distance observation in unforgiving environments, this binocular is built for you. Its clarity, reach, and durability are unmatched. For elite wildlife researchers or high-budget birding expeditions, it’s also a top-tier investment—especially when nothing but the best thermal view will do.

Comparing 6 Top Thermal Binoculars: Which One is Best for Wildlife Observation?

Choosing the right thermal binoculars for birding or wildlife watching depends on how and where you plan to use them. Some models offer just thermal imaging, while others include both thermal and digital night vision. That second group—called dual-channel binoculars—lets you spot heat, then switch to visible-light mode to get more detail. It’s a game-changer for foggy mornings, dense woods, or nighttime animal tracking.

If you want that versatility, go for models like the ATN BinoX 4T, AGM Voyage, or AGM ObservIR. These binoculars are great for locating heat signatures and then confirming what you’re seeing with night vision. On the flip side, if you just need thermal detection—especially at long distances—the Pulsar Merger XP50 and Newcon SENTINEL 640 focus solely on thermal performance and are built tough for all-weather use.

The ATN BinoX 4T 640 stands out as the best all-rounder. It offers smooth zoom, HD video recording, built-in GPS and compass, plus 16+ hours of battery life. Its more affordable sibling, the BinoX 4T 384, shares most of the same features, just with lower resolution—perfect for casual users or family nature trips. For serious field use, the Pulsar Merger XP50 adds waterproofing and next-level clarity.

Looking for value? The AGM ObservIR delivers dual-mode viewing, laser rangefinding, and GPS at a great price. The AGM Voyage 384 is a solid mid-tier pick, especially in tricky environments like misty forests. Meanwhile, the Newcon Optik SENTINEL 640 is ideal for professionals needing extreme range and rugged reliability, though it’s overkill for most hobbyists. Overall, for birders who want high performance without the bulk, ATN BinoX 4T 640 is hard to beat.

Comparison Table: Top Thermal Binoculars for Wildlife & Outdoor Use

Final Thoughts on the 6 Best Thermal Binoculars for Wildlife Observation

As someone who still enjoys the simple satisfaction of lifting a pair of classic 8x42s to my eyes on a peaceful morning walk, I’ll admit—thermal binoculars feel like a leap into another world. They’re not lightweight, and they don’t offer the crisp color views we’re used to. But they do offer something that traditional optics can’t: the ability to see when your eyes (and regular lenses) can’t.

That doesn’t make them a replacement, though. Instead, I see thermal binoculars as a smart companion to your existing gear—especially if you explore at dawn, dusk, or in shadowy places where wildlife hides. And if you go for one of the dual-mode models, like the ATN BinoX 4T, AGM Voyage 384, or AGM ObservIR, you’re not limited to heat signatures alone. These let you locate animals by their warmth, then switch to digital night vision to better ID what you’ve found—an incredibly helpful tool when detail matters.

If you just want pure thermal power and long-range spotting, the Pulsar Merger XP50 is one of the most rugged and refined options. And for professionals needing ultimate range and durability, the Newcon Optik SENTINEL 640 stands alone—though its price and purpose make it best suited to tactical or surveillance roles rather than casual birding. The ATN BinoX 4T 384 is a solid middle ground for budget-conscious users, and the AGM ObservIR, while entry-level by thermal standards, offers surprisingly capable dual-channel performance at a more accessible price.

Personally, I find the ATN BinoX 4T 640 the most balanced for real-world wildlife watching. It’s packed with smart features, runs for over 16 hours, and feels intuitive without trying too hard to be flashy. If you’re like me—more interested in the behavior of a bird than the buttons on a device—this model hits a sweet spot between old-school observation and modern capability.

In the end, thermal binoculars don’t need to replace your favorites. They just give you a new way to explore when the light fades, the fog rolls in, or the forest grows quiet. They don’t take the magic out of the moment—they help you find it.

Sure! Here’s a Q&A section that covers the six thermal binoculars for wildlife observation in a friendly, informative tone. It answers common questions readers might have when deciding between them:

Q&A: Choosing the Right Thermal Binoculars for Wildlife

Q: Which thermal binoculars offer both thermal and night vision?

A: The ATN BinoX 4T (640 & 384), AGM Voyage, and AGM ObservIR all include dual-mode viewing. That means they combine thermal imaging with a digital night vision channel, so you can spot heat signatures and then switch to a visible-light view for more detail. Great for identifying animals after dark or in foggy forests.

Q: Which model is best for rough weather and field durability?

A: The Pulsar Merger LRF XP50 stands out here. It’s IPX7 waterproof, built with a rugged armored casing, and designed for long sessions in rain, snow, or harsh environments. The Newcon SENTINEL 640 is even tougher—rated for temperatures as low as -40°C—but it’s geared more toward military and professional use.

Q: What’s the best thermal binocular for spotting animals at long distances?

A: The Newcon SENTINEL 640 has the longest detection range—up to 2,500 meters—making it ideal for large open landscapes. The Pulsar Merger XP50 also performs extremely well in long-range detection, with a range close to 2,000 meters.

Q: Which is the best all-rounder for birders and wildlife watchers?

A: The ATN BinoX 4T 640 offers the best overall balance. It combines a high-resolution thermal sensor, night vision, GPS, smooth zoom, HD video recording, and 16+ hours of battery life. It’s user-friendly and great for field use—whether you’re a wildlife pro or an enthusiast.

Q: Are there any budget-friendly options that still perform well?

A: Yes! The ATN BinoX 4T 384 delivers solid features at a more affordable price than the 640 model. If you’re looking for a true budget dual-channel device, the AGM ObservIR 25-256 offers impressive capabilities like thermal + night vision, laser rangefinder, and GPS, all under $1,500.

Q: Can I record video and share what I see?

A: All six models support video recording. The ATN BinoX 4T models even allow dual-streaming, so you can livestream to your phone while recording in HD on the SD card. The AGM models and Pulsar also offer built-in storage or Wi-Fi connectivity via apps for sharing and viewing footage.

Q: Which binoculars are best for observing wildlife at night?

A: For nighttime viewing with detail, go with a dual-mode model: ATN BinoX 4T, AGM Voyage, or AGM ObservIR. These let you locate heat and then switch to night vision to better see the animal. If you’re only concerned about movement and location, Pulsar Merger or Newcon SENTINEL will perform well with thermal alone.