6 Best Thermal Clip on - Outdoor Moran (2024)

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In a world where precision and efficiency are paramount, the best thermal clip on redefines what’s possible in thermal imaging. With its advanced features, rugged construction, and intuitive interface, it empowers users to see beyond the visible spectrum, uncovering hidden details, and increasing situational awareness.

Revered for their ability to detect heat signatures, these innovative devices stand as a testament to cutting-edge engineering and unparalleled performance. They are designed to seamlessly integrate with your existing equipment, whether it’s for outdoor adventures, tactical operations, or professional endeavors.

Among the myriad options available on the market today, discerning the best thermal clip-ons requires a keen understanding of their features, performance metrics, and real-world applications. We have done our homework and put together a list of the best thermal clip-ons and a comprehensive guide to help you choose right.

What is a Thermal Clip On?

A Thermal Clip-On is an optical device used together with a standard day optic, typically a riflescope, to add thermal imaging capability to it. It attaches in front of the existing optic and captures the thermal radiation emitted by objects in the environment, converting it into a visible image that the user can see through the eyepiece of the riflescope.

This allows the user to see heat signatures of objects, animals, or people even in complete darkness or through smoke, fog, or foliage. Thermal Clip Ons are commonly used by hunters, law enforcement, and military personnel for surveillance, target acquisition, and situational awareness in low-light or adverse condition

The 8 Best Thermal Clip-Ons

1. Rattler TC35-384 Thermal Imaging Clip-On

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  • Style: Tactical
  • Item Dimensions: 3.5 x 2.4 x 2.4 inches
  • Sport: Hunting
  • Item Weight: 1 Pound
  • Material: Polycarbonate
  • Magnification: 8x
  • Warranty: ‎5 year Manufacturer
  • Compatible Devices: Rifle
  • Refresh Rate: 50Hz
  • Night Vision: No

The Rattler TC35-384 Thermal Imaging Clip-On is by far the best thermal clip on. It is game-changer for hunters and outdoor enthusiasts looking to enhance situational awareness and gaining a tactical edge in any environment.

Its compact design and lightweight construction make it easy to attach to virtually any optical sight, transforming your existing scope into a powerful thermal imaging device. The high-resolution 384×288 thermal sensor provides crisp and clear imagery even in low-light conditions and delivers exceptional thermal detection capabilities with a detection range of up to 1,200 meters.

Another standout feature of the Rattler TC35-384 is its versatility. It is compatible with a wide range of riflescopes and equipped with multiple reticle options to seamlessly integrates into your existing setup without compromising accuracy or performance. Besides, the long battery life ensures extended use during extended hunting trips or surveillance missions, while the durable construction withstands the rigors of outdoor use.

Above all, this thermal clip on features user-friendly interface and intuitive controls that make it effortless to adjust settings on the fly, ensuring you never miss a moment of action in the field.


  • Robust and well-made to withstand the rigors of outdoor use
  • Resolution of 384×288 for high-quality imaging
  • High-performance 17μm uncooled microbolometer detector
  • 50Hz refresh rate for smooth image quality
  • 35mm lens with F/1.0 aperture for a wide field of view
  • 10.0° × 8.0° field of view for comprehensive imaging


  • No night vision

2. LEICA Calonox Thermal Imaging Monocular

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  • Style: 1 x 42 Sight
  • Item Dimensions: 5.3 x 7.8 x 9.5 inches
  • Sport: Hunting
  • Mounting Type: Picatinny
  • Item Weight: 2 Pounds
  • Material: Aluminum
  • Magnification: 7x
  • Objective Lens: 42mm
  • Night Vision: No

Here is a remarkable tool for outdoor enthusiasts and professionals alike. Its compact and lightweight design makes it easy to carry on hikes or during surveillance operations without adding unnecessary bulk.

The monocular is equipped with a high-resolution thermal sensor that delivers crisp images even in low-light conditions, allowing users to detect heat signatures from up to 1,400 meters away. The intuitive interface and ergonomic controls ensure quick and hassle-free operation, making it suitable for both novice and experienced users.

Moreover, the LEICA Calonox Thermal Imaging Monocular boasts advanced image processing technology, which enhances clarity and detail for precise target identification. Whether tracking wildlife in the wilderness or conducting nighttime surveillance, you can rely on the monocular to provide accurate thermal imaging with minimal distortion.

Additionally, the monocular is built to withstand harsh environmental conditions, with a rugged housing that is both water and shock-resistant. It also offers exceptional performance and reliability, making it an indispensable tool for anyone in need of reliable thermal imaging capabilities.


  • Large field of view for optimum overview at a long range
  • Impressive detail recognition at long range
  • Superior image quality with detailed color gradations, excellent contrast, and high detail resolution
  • One-piece construction that offers outstanding reliability and a consistently precise, repeatable point of impact


  • Big budget

3. Burris Optics BTC35 V2 Thermal Imaging Clip On

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  • Style: BTC35 V2
  • Item Dimensions: 5.9″L x 2.9″W x 2.5″H
  • Sport: Hunting
  • Item Weight: 1 Pound
  • Material: Magnesium Alloy
  • Magnification: 8x
  • Night Vision: Yes

The Burris Optics BTC35 V2 Thermal Imaging Clip On suits you is you are looking to take your shooting to the next high level. Built with versatility in mind, it is an ideal sighting tool for hunters and outdoor enthusiasts alike.

Its boasts cutting-edge features and advanced technology to deliver unparalleled performance in detecting heat signatures across various terrains and weather conditions. With a compact and lightweight design, it seamlessly attaches to any existing daytime scope, instantly transforming it into a thermal imaging device without compromising on accuracy or clarity.

More importantly, its exceptional thermal sensitivity and image resolution provides users with crisp and detailed visuals of their surroundings, even in complete darkness. The advanced image processing algorithms ensure that targets are easily distinguishable, whether they’re hiding behind foliage or camouflaged against the terrain. Additionally, its long battery life ensures extended usage during those extended hunting trips or surveillance operations.


  • Seamless adaptability whether you prefer a handheld thermal or want to turn your traditional hunting scope into a thermal optic
  • 1x, 2x, and 4x power zoom capabilities
  • Five-option color palette to enhance contrast & highlight heat signatures
  • Real-time video streaming and photo capture capability
  • Remote control of numerous device settings


  • Costly

4. Armasight Apollo Pro 1x50mm 640×512 30 Hz Thermal Imaging Rifle Scope

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  • Sensor Resolution: 640×512 pixels
  • Focus Range: 5 m to Infinity
  • Eye Relief: 45 – 55 mm
  • Refresh rate: 30 Hz
  • Color: Black
  • Item Dimensions: 3″W x 3″H
  • Item Weight: 2 lb
  • Magnification: 1x
  • Objective Lens Diameter: 50mm

The Armasight Apollo Pro 1x50mm 640×512 30 Hz Thermal Imaging Rifle Scope is our next pick of the best thermal clip on. It delivers exceptional performance, reliability, and versatility, making it a must-have tool for anyone serious about their hunting or tactical endeavors.

Its cutting-edge thermal imaging technology provides clear and precise imagery even in total darkness or adverse weather conditions. Besides, with a high-resolution display of 640×512 pixels and a refresh rate of 30 Hz, you are guaranteed crisp and fluid visuals, so you never miss a moment, whether tracking game or conducting surveillance.

This thermal clip on is built to last. It has a rugged construction, designed to withstand the demands of outdoor use. The aircraft-grade aluminum construction makes it both lightweight and durable so it is suitable for various environments.

What’s more, the scope’s intuitive interface and ergonomic design make it easy to handle and operate, even in high-pressure situations. Additionally, its long battery life ensures extended use without worrying about power drainage.


  • Simple and Quick conversion of daytime scope to Thermal Imaging
  • Mounts in front of any daytime scope, no re-zeroing required
  • High-resolution thermal imaging
  • Compact, lightweight, durable housing
  • Quick Release Mount make it easy to mount and remove from the firearm


  • Poor eye relief

5. Heimdall Fokus X350 Thermal Imaging Clip-on

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  • Sensor Resolution: 1024 – 768 pixels
  • Field of View, Linear: 36.1 – 26.9 m at 100 m
  • Field of View, Angle: 6.3 – 4.7 degrees
  • Focus Range: 5 m to Infinity
  • Item Dimensions: 2.8″W x 2.4″H
  • Item Weight: 16.8 oz
  • Water Resistance Level: IP67
  • Objective Lens Diameter: 32mm

Here is another compact, lightweight, and exceptional device for those seeking enhanced thermal imaging capabilities. It is designed to be easily attached to the front of a traditional scope, instantly transforming it into a high-performance thermal imaging scope.

The X350 boasts a high-resolution 384×288 thermal sensor, which provides clear and detailed images even in complete darkness. The device is user-friendly, with intuitive controls that allow for quick adjustments in the field. Furthermore, the lightweight design ensures that it does not add significant bulk to your equipment, making it a practical choice for hunters and wildlife observers who need to move stealthily and quickly.

Regarding construction, this clip-on’s build quality is robust, featuring a durable, weather-resistant casing that can withstand harsh environmental conditions. Other than that, its battery life is commendable, offering up to eight hours of continuous operation, which is sufficient for extended missions or outings. Additionally, the unit supports quick-detach mechanisms, allowing for swift and secure mounting and dismounting.

In terms of performance, the Heimdall Fokus X350 excels with its impressive detection range of up to 1,800 meters. This is particularly useful for long-range surveillance and tracking. The image clarity is enhanced by the advanced image processing algorithms, which help in distinguishing fine details and improving target recognition. Over and above that, the X350 also features multiple color palettes, enabling users to choose the best display mode for different environments and conditions.


  • High resolution OLED color display
  • Photo and video recording
  • Multifunctional interface
  • True FOKUS technology
  • Up to 8 hours battery life
  • Completely silent operation


  • Expensive but worth the investment

6. AGM Global Vision Rattler TC19-256 1x19mm 30mm Tube Thermal Imaging Clip-On

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  • Sensor Resolution: 256×192 pixels
  • Eye Relief: 45 mm
  • Exit Pupil: 22 mm
  • Attachment/Mount Type: Weaver, Picatinny
  • Operating Temperatures: -4 – 131 Fahrenheit
  • Objective Lens Diameter: 19mm
  • Item Dimensions: 6″L x 2.3″W x 2.4″ H
  • Item Weight: 0.92 lb
  • Material: Aircraft Grade Aluminum
  • Battery Quality: 2
  • Water Resistance Level: IP67
  • Body Tube Diameter: 30mm
  • Refresh Rate: 50 Hz

The AGM Global Vision Rattler TC19-256 1x19mm 30mm Tube Thermal Imaging Clip-On is our last recommendation of the best thermal clip on. It is an impressive addition to any avid hunter or outdoor enthusiast’s toolkit.

The compact and lightweight design of the Rattler makes it highly portable, ensuring it can be easily attached to various scopes without adding significant bulk. Its thermal imaging capability, boasting a 256×192 resolution, provides clear and detailed visuals even in complete darkness or adverse weather conditions. Furthermore, it is engineered with a 19mm objective lens that offers a wide field of view and a refresh rate of 25 Hz to ensure smooth imaging, which is crucial for tracking moving targets.

Durability is another standout feature of the Rattler TC19-256. It is built to withstand harsh environments with a robust, weather-resistant housing. The user-friendly interface, featuring simple button controls complements the robust construction and allows for quick adjustments and operation, even when wearing gloves.

To further enhances its versatility, This device’s offers integration with other AGM accessories and is compatibility with a variety of rifle scopes. Furthermore, it boasts a long battery life to ensure prolonged usage during extended hunts or expeditions.


  • Supports distance measurement
  • Adjustable color palettes
  • Wi-Fi data transmission
  • Waterproof, shockproof, and well-built to stand the test of time
  • Quick conversion of daytime optics into thermal imaging scope


  • Narrow eye relief

Criteria for Choosing the Best Thermal Clip On

When choosing the best thermal clip-on device, there are several critical factors to consider to ensure you select a product that meets your needs and provides high performance. Here’s a detailed guide on what to look for:

Image Quality

Higher resolution (e.g., 640×480 pixels) is recommended as it provides clearer and more detailed images. Additionally, the best thermal clip on should have a higher refresh rate, 50Hz or more to offer smoother motion and better performance in tracking moving targets.

Field of View (FOV)

A wider FOV is preferable for scanning large areas, while a narrower FOV is better for focusing on specific targets. Determine the kind of application you intend to use the clip-on for and choose accordingly.

Detection Range

This is the distance you can use the clip-on for accurate target identification. Some high-end models can detect human-sized targets over 2000 meters away. Consider your maximum detection range and make the right selection.

Compatibility and Mounting

Ensure the clip-on is compatible with your existing optics and mounting systems. Quick detach mounts can be beneficial for rapid attachment and detachment. On top of that, verify the availability of appropriate adapter rings for your scope’s objective lens size.

Battery Life and Power Options

A thermal clip-on with a longer battery life is critical for extended operations. You should also consider devices with multiple power options, such as replaceable batteries, rechargeable batteries, or external power sources.

Durability and Weather Resistance

Look for rugged, military-grade construction for durability in harsh environments. The best thermal clip on is also made to be operable in all weather conditions. So, ensure the device is waterproof and resistant to dust and extreme temperatures as well.

Ease of Use and Features

An intuitive user interface with easy-to-access controls and clear menus is crucial. Also consider additional features such as multiple color palettes, image and video recording capabilities, wireless connectivity, and integrated rangefinders.

Weight and Size

Last, but not least, consider the size and weight of the clip-on. A lightweight and compact design will be easier to handle and less cumbersome when mounted on a weapon or scope.

How to Attach a Thermal Clip-On to a Scope?

Attaching a thermal clip-on on a scope typically involves:

  1. Mounting: Aligning the clip-on with the objective lens of your existing optic.
  2. Clamping: Securing the clip-on in place using provided mounts or adapters.
  3. Calibration: Some models may require calibration to align the thermal image with the reticle of your scope. Follow the manufacturer’s instructions for best results.


  • Are thermal clip-ons legal to use?

Legality depends on the region and the intended use. In many places, thermal clip-ons are legal for civilian use, especially for hunting or wildlife observation. However, there may be restrictions in certain areas or for specific applications, such as hunting regulations or use by law enforcement. Always check local laws and regulations before purchasing or using a thermal clip-on.

  • Can I use a thermal clip-on during the day?

Yes. Thermal clip-ons can be used during the day as they detect heat, not visible light. However, their primary advantage is in low-light or no-light conditions where traditional optics fail to provide a clear view.

  • Can a thermal clip-on device be used with any scope?

While many thermal clip-ons are designed to be compatible with a wide range of scopes, it’s important to check the manufacturer’s specifications for compatibility. Factors like mounting systems, objective lens sizes, and eye relief can affect compatibility.

Final Words

Thermal clip-ons are generally compatible with a variety of rifle scopes and effective in a wide range of weather conditions, including complete darkness, fog, and light rain. All the models we have mentioned above are easy to mount, durable, and optimized for versatility and performance. Look at the features that make each clip-on the right purchase and choose accordingly.

6 Best Thermal Clip on - Outdoor Moran (2024)


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