8 Best Thermal Monoculars

April 1, 2023


Hey there, adventure seekers! Are you ready to take your outdoor experiences to the next level? Then you’re in the right place because we’re about to introduce you to the most incredible thermal monoculars on the market! Whether you’re an avid hunter, wildlife enthusiast, or just love exploring the great outdoors, a handheld thermal monocular is a game-changer.

So here’s the best part – we’ve done all the hard work for you! Our team has rigorously tested and evaluated the top models out there, so you don’t have to. But that’s not all – we’ve also put together an in-depth buying guide to help you make the best decision for your needs. And don’t worry if you’re a first-time buyer, we’ll provide you with all the technical information you need to know. So, get ready to unleash your inner adventurer, and let’s find your perfect thermal monocular!

Don’t wait – let’s get this hunt started!


ATN OTS-HD, Thermal Viewer with Full HD Video rec, WiFi, GPS, Smooth Zoom and Smartphone Controlling Thru iOS or Android Apps

ATN OTS-HD, Thermal Viewer with Full HD

Resolution: 640×480
3D Gyroscope

Check Price on Amazon

The ATN OTS – Thermal Advanced HD 640 Monocular is a top-of-the-line gadget that has earned high praise from shooters and wildlife enthusiasts alike.

One of the most impressive features of this monocular is its heat sensor, which boasts a remarkable resolution of 640 x 480 pixels, equivalent to that of a standard television pixel rating. This means you’ll be able to detect even the slightest temperature changes, making it ideal for night-time expeditions or any situation where visibility is low.

Thanks to its 3D gyroscope and E-compass, you can see in complete darkness without any difficulty. Moreover, zooming in and out is a breeze with just the touch of a button.

The ATN OTS – Thermal Advanced HD 640 Monocular is a must-have tool for those who value high-resolution footage and images. And with its enhanced Wi-Fi module, you can easily share your experiences with friends and family.

But that’s not all – this monocular has a built-in rangefinder, allowing you to quickly identify targets. And with the included SD card, you can store images with ease.

Adding geographic data to your photos is also a breeze with geotagging available on your smartphone. Weighing in at just 1.85 pounds and with a compact size, this monocular is easy to carry wherever you go.

All in all, the ATN OTS – Thermal Advanced HD 640 Monocular is a top-of-the-line gadget that has earned high praise from shooters and wildlife enthusiasts. Don’t settle for less – upgrade your outdoor experience today with this exceptional device.

  • Features of excellent quality
  • The price that is reasonable
  • A cutting-edge processor
  • 3D gyroscope and E-compass for clear visibility
  • The user interface is simple
  • Built-in rangefinder
  • Geotagging available on your smartphone
  • Lightweight and compact design
  • There are no mounting options

Pulsar Helion XP Thermal Monocular

The Pulsar Helion XP Thermal Monocular is an excellent choice for outdoor enthusiasts and hunters, boasting superior thermal characteristics. The 50mm lens of this infrared monocular is not only huge but also highly durable, ensuring long-lasting performance. With a magnification range of 2.5x to 20x and seamless zooming capabilities, this Pulsar monocular produces sharp and high-quality thermal images. The thermal sensor in the Helion XP boasts a resolution of roughly 640 x 480 pixels, resulting in stunning high-resolution thermal photographs. At 17m, the Helion XP has an uncooled micro-bolometric matrix, meaning you can capture thermal signatures up to 1800 meters away. The Helion XP monocular also comes with a 8GB internal memory and a built-in video recorder, allowing you to capture both photos and videos with ease. The great display and 50Hz refresh rate maintain excellent visual clarity, even when you’re on the move. The batteries in the Helion XP monocular last up to an impressive 7 hours, making it perfect for extended field excursions. Overall, the Pulsar Helion XP Thermal Monocular is a must-have for anyone looking for a reliable and high-performance thermal monocular that won’t let them down.

Are you looking for a thermal monocular that can take your hunting and outdoor activities to the next level? Look no further than the Pulsar Helion XP Thermal Monocular.

With its durable 50mm lens and seamless zooming capabilities, this monocular produces high-quality thermal images that are sure to impress. And with a thermal sensor resolution of roughly 640 x 480 pixels, you can capture stunning, high-resolution thermal photographs with ease.

The Helion XP monocular also features a 8GB internal memory and a built-in video recorder, allowing you to capture both photos and videos on the go. And with its impressive 7-hour battery life, you can take the Helion XP with you on extended field excursions without worry.

Not only that, but the Helion XP monocular can detect thermal signatures up to 1800 meters.

  • The image is bright and clear
  • Long range of detection (up to 1800 meters)
  • Comes with a built-in video recorder
  • Long-lasting battery
  • The 50mm lens is large and durable
  • 7-hour battery life
  • The cost is high
  • A limited field of vision

ATN OTS-HD 384 1.25-5x, 384×288, 19 mm, Thermal Monocular w/ High Res Video, Geotagging, Rangefinder, WiFi, E-Compass, E-Zoom, 3D Gyroscope, IOS & Android Apps

Outdoor enthusiasts, mountaineers, and hunters will appreciate the advanced features of the ATN OTS-HD 384 Thermal Smart HD monocular. This gadget combines thermal imaging with a high-definition display, making it a versatile and powerful tool for outdoor activities.

The monocular is powered by the OTS-HD Obsidian core processor, which uses cutting-edge technologies to provide a speedy and lag-free experience. This allows for complex functions that deliver precise data when hunting, with a user-friendly UI that makes it easy to use.

The OTS-HD monocular also incorporates a built-in smart rangefinder that aids in precise distance measurement, making ranging a target straightforward and precise in most circumstances.

One of the standout features of this monocular is the 3D gyroscope, which produces crisp photographs even when you’re on the move. You can then use the E-Zoom functionality to focus your attention on the target, with a seamless zooming procedure that makes it easy to get the perfect shot.

The ATN OTS HD 384 thermal monocular also includes advanced communication technologies like Bluetooth and Wi-Fi, allowing you to link it to your smartphone or tablet using the ATN Obsidian mobile app. This provides a wealth of information and options, including geotagging your photos and movies with the included GPS antenna.

In summary, the ATN OTS-HD 384 Thermal Smart HD monocular is a highly cost-effective option for your next outdoor excursion, with advanced features that provide accurate data and high-quality imaging. Whether you’re a hunter, hiker, or mountaineer, this monocular is sure to impress.

  • Rangefinder built-in
  • Zooming in and out with ease
  • Compatibility with Wi-Fi
  • Long-lasting battery
  • 3D gyroscope produces crisp photographs
  • Cost-effective
  • Learning how to use controls takes time
  • The range is limited

Pulsar Axion Key Thermal Monocular

Pulsar’s Axion series offers a range of excellent thermal monoculars, including the Axion Key XM30, which we will be reviewing in this post. This monocular is designed with a focus on hunting and offers a detection sensitivity of up to 1,300 yards, making it an excellent tool for spotting and reconnaissance.

The Axion Key XM30 is constructed with a lightweight yet durable Magnesium alloy, ensuring that it is both sturdy and portable. The monocular features eight color palettes, allowing you to observe in a variety of settings. The available modes include White Hot, Rainbow, Hot Black, Red Hot, and Ultramarine.

The Axion’s optics provide a high magnification range of 2.5x-10x, and include 4x digital zoom, uninterrupted zoom, and picture-in-picture zoom, providing flexibility and precision when spotting targets.

Despite its high-performance capabilities, the Axion Key XM30 is small enough to fit in the palm of your hand or a regular jacket pocket, making it ideal for on-the-go outdoor activities.

With its 16 GB internal memory, you won’t have to worry about running out of space for storing films and images. Additionally, the Axion Key XM30 supports the Stream Vision application, making it easy to transfer and view your photos and videos on a smartphone or tablet.

Overall, the Axion Key XM30 is an excellent value-for-money option in the thermal monocular market. Its thermal detection range of up to 180 meters makes it an excellent entry-level tool for hunting and outdoor enthusiasts alike.

  • Detection sensitivity of up to 1,300 yards,
  • Tough design
  • Exceptional presentation
  • Internal memory: 16 GB
  • Built to withstand the elements
  • In the dead of winter, this isn’t the best option

FLIR Scout TK Handheld Thermal Imaging Monocular Green, 6.0″ x2″x 2″ (L × W × H)

In the dead of winter, this isn’t the best option.

To be honest, the FLIR Scout line of thermal monoculars is among the greatest value for money on the market.

This pocket-sized monocular is not only easy to use, but it’s also perfect for tracking wildlife in the great outdoors. With microbolometers as part of its thermal imaging technology, the Scout TK provides exceptional performance while remaining lightweight and energy-efficient.

While it may not have the highest resolution sensor on the market, the quality of the FLIR Scout TK’s images is impressive for an entry-level device. Plus, with a 9-frame-per-second frame rate and 640 x 480 LCD screen with excellent clarity and brightness, this monocular is perfect for outdoor use.

Weighing only 6 oz and measuring 6.0′′ x 2′′ x 2′′, the FLIR Scout TK is one of the lightest and most portable options out there. Its user interface is also incredibly user-friendly, with only four simple buttons to control the device.

With a variety of color palettes to choose from and a rechargeable Lithium-Ion battery that can last up to five hours of working time, the FLIR Scout TK is a great value-for-money option for anyone in need of a reliable thermal monocular. So why wait? Invest in the FLIR Scout TK today and start exploring the great outdoors like never before!

  • Simple to use
  • A reasonable price
  • Pocket-sized and easy to use
  • Quick start-up time
  • Perfect for wildlife tracking
  • Great value for money
  • A slow rate of refresh
  • The range is limited

FLIR Scout TK Handheld Thermal Imaging Monocular Green, 6.0″ x2″x 2″ (L × W × H)

Are you in the market for a versatile and reliable thermal monocular? Take a look at FLIR Breach PTQ136. Originally designed for police enforcement, this device is perfect for house inspections and day/night hunting as well.

With a 12m Boson core and a 320 256 VOx Microbolometer, the FLIR PTQ136 boasts exceptional thermal sensitivity and consistently crisp and clear photos. And weighing in at only 7 ounces, this monocular is small and lightweight enough to be held or carried for extended periods.

But that’s not all. The FLIR PTQ136 also comes with a mounting rail on the right side of the device, allowing it to be connected to any rifle or helmet for even more versatile use. And with a tough and durable build, it can withstand drops and shocks with ease.

The CR123A 3V Lithium battery may have a battery life of only 90 minutes, but with all these amazing features, you won’t want to miss out on this fantastic device. So why wait? Get your hands on the FLIR Breach PTQ136, invest in the FLIR Breach PTQ136 now, and elevate your outdoor experience to a whole new level! Don’t miss the chance to have this versatile monocular at your disposal!

  • Image quality is excellent
  • High rate of refresh
  • Compact and lightweight
  • Simple to use
  • Battery life is short

Joon Digital Night Vision Monocular for 100% Darkness, 1.5″ TFT Inner Screen Travel Infrared Monoculars Save Photos & Videos for Outdoor/Surveillance/Security/Hunting/Hiking – 32GB Card Included

Looking for a thermal monocular that can withstand tough outdoor conditions? Then this monocular is something you shouldn’t miss! With its lightweight aluminum construction and Gorilla Glass cover, this little gadget is tough enough to handle even the most rugged outdoor adventures.

The circular display provides excellent clarity and contrast, with a 390 x 390 resolution that makes it easy to detect objects in complete darkness. And with a 6x digital zoom, you’ll be able to get a closer look at whatever you’re tracking.

Plus, with a strong infrared sensor that produces high-quality images even at the far end of the visible range, you’ll never miss a thing. And with eight color palettes to choose from, you can customize the display to suit your needs.

Just keep in mind that the Leupold LTO Tracker Thermal Monocular isn’t designed to withstand shooting recoil, so use caution when using it in conjunction with firearms. With all of these features and more, the Leupold LTO Tracker Thermal Monocular is the perfect tool for anyone looking to take their outdoor adventures to the next level!

  • Several color schemes are available
  • Controls are simple
  • Long-lasting battery
  • It is small and light
  • The range is limited

Bestguarder 6x50mm HD Digital Night Vision Monocular with 1.5 inch TFT LCD and Camera & Camcorder Function Takes 5mp Photo & 720p Video from 350m Distance for Night Watching or Observation

Have you heard about the Bestguarder Digital Night Vision Monocular? This device is top-notch! It’s got all sorts of cool features that’ll make your head spin.

First off, let’s talk about the high-res HD images and videos this monocular can capture. You can snap pics at different resolutions like 2592 x 1944, 1600 x 1200, and 640 x 480 pixels. And the videos? They come in 1280 x 720 and 640 x 480, with a whopping 30 frames per second.

But that’s not all! This bad boy has an infrared illuminator that’ll make your night vision a force to be reckoned with. With a range of 350 meters and 6x magnification, you’ll see things you never thought possible in the dark.

And get this, it’s got a built-in microphone for recording sounds, and you can even stream live video straight from the monocular to your laptop or smartphone! Plus, it’s super easy to set up with the two grooved 1/4′′-20 tripod mount gaps.

This versatile device is perfect for all sorts of outdoor activities like hunting, night fishing, bird watching, caving, and even surveillance. You won’t regret investing in this bad boy, trust me!

  • Digital zoom that works
  • Money well spent
  • An eyepiece that can be adjusted
  • The interface that is simple to use
  • There is no autofocus

Armasight Spark Multi-Purpose Night Vision Monocular CORE IIT 60-70 lp/mm

Have you seen the Armasight Multi-Purpose Spark thermal monocular? At first glance, you might mistake it for a standard video camera, but let me tell you, it’s anything but ordinary.

This bad boy features CORE technology with ceramic substances fused with specific metal alloys to take its performance to the next level. And with dynamic sensitivity of up to 70 lp/mm of double-resolution, it can draw an impressive 35 white and 35 black lines per millimeter! Mind-blowing, right?

But wait, there’s more! The monocular also includes a configured infrared illuminator for low-light situations, a 3x zoom, and a generous 20mm eye relief, all wrapped up in an ergonomic design that’s super easy to use.

You can power this bad boy with a CR-123 3V or a rechargeable CR123 battery that lasts almost 40 hours. Just don’t forget that while it’s moisture and fog-proof, it’s not entirely waterproof. So if you’re planning to use it near water or during the rainy season, think again.

The downside? Unfortunately, this item is currently unavailable, but don’t fret! We’ll keep you posted as soon as it’s back on the market.

  • Excellent optical clarity
  • Design with ergonomics in mind
  • Long-lasting battery
  • Two-year warranty
  • The infrared illuminator might be improved
  • It can be difficult to concentrate
  • Design with ergonomics in mind

What You Should Know Before Buying a Thermal Imaging Monocular?

Buying Guide

What Is a Heat Signature, and How Does It Work?

Did you know that everything around us gives off different types of radiation? And get this – each type of radiation is completely unique!

For example, us humans and certain animals emit radiation that falls within a specific range of wavelengths, from 0.75 to 1000 microns. That’s pretty cool, right? This type of radiation is known as infrared rays or the “infrared signature”.

Now, get ready for a mind-blowing fact – the amount of heat that an object gives off is known as its heat signature! However, even though our eyes are amazing, they do have some limitations. We can’t see infrared radiation with our naked eyes, so unfortunately we can’t see the cool infrared signature that we and other creatures emit.

What Is the Difference Between a Thermal Monocular and a Night Vision Monocular?

Have you ever stopped to think about how incredible it is that we can see in the dark and in harsh weather conditions? It’s all thanks to amazing technologies like thermal imaging and Night Vision.

But here’s the thing – did you know that these two technologies are actually different from each other? Yup, even though they both help us see in tough situations, they work in their own unique ways. How cool is that?

Monoculars for Thermal Imaging

Prepare to have your mind blown by the wonders of thermal imaging technology! Basically, this amazing tech works by detecting the heat signals that are naturally given off by humans, animals, and objects in the form of infrared radiation.

But wait, it gets even cooler! Not all objects emit energy at the same rate, so the responsive thermal imaging sensor in the monocular comes to the rescue. It captures the infrared radiation emitted by different objects and turns it into an accurate temperature pattern, or thermogram.

From there, the thermogram is transformed into electrical impulses which are then used to create an image. Usually, the images produced by these monoculars are grayscale, with heat-emitting objects appearing white and cold-emitting objects appearing black.

And if that wasn’t enough to blow your mind, some monoculars even use a range of colors to represent different temperature ranges. So if you see violet, blue, or green on the screen, it’s indicating colder temperatures, while red, orange, or yellow signify higher temperatures. How cool is that?

Monocular With Night Vision

Get ready to be amazed by Night Vision Devices (NVDs)! These remarkable devices let us see in the dark by enhancing the light that’s available, whether it’s natural or ambient.

NVDs are even known as Star/Moon devices because they’re capable of using the light from these celestial bodies to improve our nighttime visibility. It’s almost like having superpowers!

But here’s the thing – as impressive as NVDs are, they do have their limits. If there’s no light or heavy fog, they won’t be very effective. That’s where thermal imaging devices come in as a more dependable option in these challenging situations.

Best Thermal Monoculars Features: Buying Guide

Are you ready to take your outdoor adventures to the next level with a thermal monocular? That’s so exciting! But hold on a minute, with so many choices out there, how do you know which thermal monocular is the right one for you?

Don’t worry, we’ve got you covered. We know it can be overwhelming to navigate the crowded monocular market, so we’ve put together a guide to help you pick the perfect one for your needs. Get ready to discover the best characteristics to look for in a top-quality thermal monocular.


Are you looking for a thermal monocular that can handle the ruggedness of outdoor use? Well, the first and most crucial feature to consider is its durability, as it will be exposed to various stressors, pressures, and climate fluctuations.

To ensure your thermal monocular can handle the elements, it should have a sturdy structure and waterproof qualities. It should also be able to function seamlessly across a wide temperature range.

While you may be tempted to go for a low-cost option, keep in mind that these monoculars often lack the durability you need to meet your goals. On the other hand, a high-quality night vision monocular can last up to a decade with proper maintenance. And don’t forget to check for a strong warranty to protect your investment.

Magnifying Factor

When you’re shopping for a monocular, one of the most important things to consider is its magnification. Basically, this refers to how much bigger the image will appear compared to its actual size, and it’s determined by the distance between the object and the lens.

Magnification is typically expressed as two numbers, like 10 x 18. The first number (10) tells you how many times bigger the image will be, and the second number refers to the lens diameter in millimeters (in our example, an 18 mm lens).

But here’s the thing: the higher the magnification, the more any movement of the lens will be amplified. That means if you’re trying to look at something really far away with a magnification greater than 10x, even the slightest shake could make the image blurry or distorted. So, you might need to use a tripod or an image stabilizer to keep things steady.

The Rate of Refresh

So, here’s the deal – the refresh rate of your thermal monocular is a crucial factor that you can’t afford to overlook. Why, you ask? Because it determines the frequency at which the image on the screen is updated, and that affects the overall viewing experience.

The refresh rate is measured in Hertz, which basically means how many times per second the image is refreshed. Typically, monoculars come with refresh rates of 9Hz, 30Hz, 50Hz, and 60Hz. The higher the number, the faster the refresh rate, and the better the image quality.

If you’re planning to use your thermal monocular for activities like hunting or animal observation, a refresh rate of at least 30Hz is recommended. That’s because slower refresh rates can lead to visual blurring, which is definitely not what you want in these situations. Plus, higher refresh rates can make the image appear smoother and more pleasant to look at.


Choosing the right magnification for your monocular is important. But what exactly is magnification and how does it work?

Magnification is the degree to which the image is enlarged when viewed through the monocular. It’s usually expressed as two numbers, like 10 x 18. The first number, 10, refers to how many times larger the image appears compared to normal. The second number, 18, indicates the lens diameter in millimeters.

It’s worth noting that with greater magnification, any movement or shake will be amplified. This can make it difficult to maintain a steady image, especially if you’re observing from a distance.

To counteract this, you may want to consider a monocular with image stabilization or invest in a tripod to keep your image steady.

Another factor to consider when selecting a monocular is its refresh rate. This refers to how quickly the image on the screen is updated and is measured in Hertz (Hz).

For professional use, it’s recommended to have a refresh rate of at least 30Hz. This will help avoid visual blurring when observing fast-moving objects.

Finally, the resolution of the thermal sensor in the monocular is also important. Resolution is the number of pixels that make up the image and is usually expressed as two integers, like 2000 x 1000. Higher resolution means more pixels and therefore greater image clarity.

A minimum resolution of 480 x 640 pixels is recommended when selecting a monocular.


You don’t want your monocular to be a dud when you need it the most, and that’s why having the right power supply is crucial.

Imagine being out on a hunting trip and your monocular dies on you just when you need it the most – talk about a major bummer!

One thing to keep in mind is that Wi-Fi and Bluetooth connections can suck up a lot of battery juice. So, it’s important to choose a device that has a battery life that meets your needs.

Ideally, you should look for a monocular with a battery life of 7 to 10 hours for most purposes.

Portable and Recordable

So, when choosing a thermal monocular, you want to consider its portability. A good thermal monocular should be lightweight and compact, making it easy for you to carry it around without any issues.

Some monoculars can also be attached to tripods, which is great if you want to take steady pictures. However, you’ll need to bring a tripod with you and set it up before you can use it, which can be a bit of a hassle. On the other hand, if you want something that’s easy to use and doesn’t require any setup, a small and lightweight monocular that you can slip into your pocket or bag is the way to go.

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