7 Best Thermal Clip On

The best Thermal Clip On became more than just another hunting accessory the night I watched a coyote slip through our pasture fence line, invisible against the dark brush until a glowing heat signature appeared where my naked eye saw nothing. That moment completely changed the way I hunt after dark.

There is something genuinely exciting about attaching a single device to your favorite daytime scope and instantly viewing the world through heat instead of visible light. These night hunting optics reveal animals through fog, dense brush and complete darkness. They also let you keep the reticle and shooting setup you already know and trust. That level of flexibility is what separates a quality thermal clip on from one that falls short in the field.

After testing and researching these thermal scope attachments, I learned that the best models share several qualities in common. A high resolution thermal sensor, low NETD for improved image contrast, dependable battery life, rugged weather resistant construction, plus practical features such as video recording, wireless connectivity or a built in laser rangefinder all contribute to better performance when every shot counts.

In this guide, I’ll walk you through everything you need to know before making your purchase. I’ll cover the features that matter most and share my top picks after comparing their performance. I’ll also explain the key factors to consider before buying and answer the questions hunters ask most often. By the end, you’ll have everything you need to choose the thermal clip on that best matches your hunting style, budget and expectations.

See summary of the Best Thermal Clip On: 

• ATN TICO 6 1-15x50mm 640x512px Thermal Clip — Best Overall
• ATN TICO 6 1-8x25mm 256x192px Thermal Clip — Best Budget
• ATN TICO 6 1-12x35mm 384x288px Thermal Clip On — Best Mid-Range
• PARD Optics Predator 640 45mm Thermal Riflescope Clip-On — Best for Rangefinding
• Guide USA TB Series 1250 PRO Thermal Clip-On — Best Premium Option
• SIG SAUER ECHO CV25 1X25mm Thermal Clip-On — Best Compact / Best Battery Life
• Athlon Optics Cronus ATS Pro 35CL-640 6.4x Thermal Clip-on — Best for Connectivity

Best Thermal Clip On

1) ATN TICO 6 1-15x50mm 640x512px Thermal Clip

Hunters who want premium thermal performance without giving up their trusted daytime scope should take a close look at the ATN TICO 6 1 to 15x50mm. As one of the best Thermal Clip On options available, it lets you convert your existing optic into a thermal viewing system within seconds while preserving your familiar reticle and point of impact. That convenience is especially valuable during predator hunts, wildlife management or nighttime surveillance.

Image quality is one of its biggest strengths. The sixth generation thermal engine produces crisp thermal imagery with excellent sensitivity, allowing heat signatures to remain visible in darkness, fog or heavy cover. AI powered image processing further refines the picture by improving contrast while sharpening object edges, giving you greater confidence when identifying targets at longer distances. The full HD OLED display also delivers a comfortable viewing experience during extended sessions.

This model offers much more than thermal observation through a rifle scope. With an optional eyepiece, it quickly becomes a handheld thermal monocular for scanning fields before taking a shot. Built in video and audio recording, recoil activated recording, plus 64 GB of internal storage let you capture every outing without additional equipment. WiFi connectivity also provides convenient wireless streaming together with remote control through a compatible mobile device.

Built from magnesium alloy, the housing is ready for demanding environments with an IP67 weather resistance rating that protects against rain, dust, and harsh field conditions. A quick detach Picatinny mount simplifies installation, whereas the included tactical remote allows adjustments without breaking your shooting position. Although it sits in the premium price category, its advanced imaging, versatile operation and rugged construction easily justify the investment for serious hunters.

Specifications

• Magnification: 1-15x
• Objective Lens Diameter: 50 mm
• Sensor Resolution: 640 × 512 pixels
• Display Resolution: 1920 × 1080 OLED
• Refresh Rate: 50 Hz
• Detection Range: Up to 3500 m
• NETD: 18 mK
• Battery Type: Lithium Ion 18650
• Battery Life: Up to 7 hours
• Field of View: 8.8 to 7 degrees
• Water Resistance: IP67
• Housing Material: Magnesium alloy
• Weight: 1.24 lb

Pros

• Produces exceptionally detailed thermal images
• AI image enhancement improves contrast plus target definition
• Preserves your existing daytime scope setup
• Built in video plus audio recording with recoil activated recording
• WiFi connectivity supports wireless streaming plus remote control
• Durable magnesium alloy housing with IP67 weather resistance
• Long detection range for identifying distant targets
• Converts into a handheld thermal monocular with an optional eyepiece

Cons

• Premium price may exceed some budgets
• Slightly heavier than compact thermal clip on alternatives

2) ATN TICO 6 1-8x25mm 256x192px Thermal Clip 

Finding an affordable way to add thermal imaging to your existing daytime scope does not mean compromising on reliability. The ATN TICO 6 1-8x25mm provides a lightweight solution that installs within seconds, allowing you to continue using your familiar optic without changing its balance or point of impact. That combination of value, portability, plus dependable performance makes it one of the best Thermal Clip On options for budget conscious hunters.

Although it features a 256 × 192 thermal sensor, this model delivers clear heat signatures across darkness, light fog, or moderate vegetation. ATN’s sixth generation thermal engine enhances image quality, while AI assisted processing increases contrast to help separate animals from the background. The OLED display presents sharp visuals that remain comfortable to view during long evenings in the field.

Practical features add even more appeal for hunters who like recording their outings. Video recording, audio recording, recoil activated recording, plus 64 GB of internal storage provide plenty of space for capturing memorable shots. An optional eyepiece also allows the unit to serve as a handheld thermal monocular, giving you the freedom to scan an area before mounting it back onto your rifle. Built in WiFi makes wireless streaming plus remote operation quick and convenient.

Durability is another area where this clip on performs well. Its magnesium alloy housing is designed for demanding outdoor use, complemented by an IP67 weather resistance rating that helps protect it from rain or dusty conditions. A quick detach Picatinny mount speeds up installation, whereas the included tactical remote lets you adjust settings without shifting from your shooting position. While it cannot match the image detail or detection distance of premium models, it delivers excellent performance for its price.

Specifications

• Magnification: 1-8x
• Objective Lens Diameter: 25 mm
• Sensor Resolution: 256 × 192 pixels
• Display Resolution: 800 × 600 OLED
• Refresh Rate: 50 Hz
• Detection Range: Up to 1500 m
• NETD: 20 mK
• Battery Type: Lithium Ion 18650
• Battery Life: Up to 8 hours
• Field of View: 7 to 5.3 degrees
• Water Resistance: IP67
• Housing Material: Magnesium alloy
• Weight: 1.12 lb

Pros

• Budget friendly entry into thermal clip on optics
• Compact, lightweight design for comfortable carry
• AI image enhancement improves target visibility
• Video plus audio recording with recoil activated recording
• Built in WiFi for wireless streaming plus remote operation
• Durable magnesium alloy construction
• Up to 8 hours of battery life
• Optional eyepiece expands its functionality

Cons

• Lower sensor resolution than premium alternatives

3) ATN TICO 6 1-12x35mm 384x288px Thermal Clip On 

Stepping up to a higher resolution thermal sensor can make a noticeable difference when identifying targets in challenging conditions and the ATN TICO 6 1-12x35mm strikes an excellent balance between performance, versatility and price, giving hunters a dependable thermal attachment that works seamlessly with their existing daytime scope. It installs quickly while preserving your familiar reticle and shooting setup, making the transition from day to night both simple and efficient.

A 384 × 288 thermal sensor paired with ATN’s sixth generation thermal engine produces detailed imagery across darkness, fog, or dense vegetation. AI powered image enhancement improves contrast while sharpening target outlines, allowing heat signatures to stand out more clearly against the surrounding landscape. The Full HD OLED display further enhances the viewing experience with crisp visuals that remain easy on the eyes during extended hunts.

Its versatility extends beyond rifle mounting. Pairing the unit with an optional eyepiece converts it into a handheld thermal monocular for scanning fields before taking a shot. Video recording, audio recording, recoil activated recording, plus 64 GB of internal storage make it easy to document each outing, whereas built in WiFi supports wireless streaming together with remote control from a compatible mobile device.

Reliability is another strength of this model. The magnesium alloy housing is built for demanding environments, supported by an IP67 weather resistance rating that helps protect it from rain, dust, plus other harsh outdoor conditions. A quick detach Picatinny mount simplifies installation, while the included tactical remote allows fast adjustments without interrupting your shooting position. For hunters seeking a capable thermal clip on with improved image quality over entry level options, this model offers an appealing blend of features and field performance.

Specifications

• Magnification: 1-12x
• Objective Lens Diameter: 35 mm
• Sensor Resolution: 384 × 288 pixels
• Display Resolution: 1920 × 1080 OLED
• Refresh Rate: 50 Hz
• Detection Range: Up to 2710 m
• NETD: 18 mK
• Battery Type: Lithium Ion 18650
• Battery Life: Up to 8 hours
• Field of View: 7.5 to 5.7 degrees
• Water Resistance: IP67
• Housing Material: Magnesium alloy
• Weight: 1.15 lb

Pros

• Delivers sharper thermal images than entry level models
• AI image processing improves target definition
• Preserves the use of your existing daytime scope
• Supports video plus audio recording with recoil activated recording
• Built in WiFi enables wireless streaming plus remote control
• Rugged magnesium alloy construction
• Long battery life for extended hunting sessions
• Optional eyepiece adds handheld viewing capability

Cons

• Heavier than some compact alternatives

4) PARD Optics Predator 640 45mm Thermal Riflescope Clip-On

The PARD Optics Predator 640 45mm is built for hunters who want more than a traditional thermal clip on. Besides attaching to a daytime scope, it can also serve as a handheld thermal spotter or operate as a standalone thermal scope with a compatible mount. This versatility allows you to adapt to different hunting situations without carrying multiple thermal devices.

Its 640 × 512 thermal sensor delivers detailed thermal imagery with excellent sensitivity, helping you detect heat signatures at extended distances in darkness, fog, or dense vegetation. A 45 mm objective lens works alongside the high resolution OLED display to produce crisp visuals that are easy to interpret in the field. Because the optic uses a true 1x base magnification, it preserves the performance characteristics of your daytime scope rather than interfering with them.

The built in laser rangefinder adds another level of confidence by providing accurate distance measurements out to 1200 yards. Multiple color palettes, reticle styles, plus scene modes allow you to tailor the display to changing environments. If accurate ranging is high on your list of priorities, this model deserves consideration among the best Thermal Clip On options available. Recoil activated recording, photo capture, WiFi connectivity, firmware updates, plus removable Micro SD storage further expand its capabilities in the field.

An aluminum alloy housing keeps the unit lightweight without sacrificing durability, making it comfortable to carry during long hunts. Its IP67 weather resistance rating provides dependable protection against rain, dust, plus other challenging outdoor conditions, while recoil testing confirms it can handle powerful rifle calibers. Battery life reaches up to five hours, so packing an extra rechargeable 18650 battery is a practical choice for longer outings.

Specifications

• Objective Lens Diameter: 45 mm
• Sensor Resolution: 640 × 512 pixels
• Display Resolution: 1440 × 1080 OLED
• Refresh Rate: 50 Hz
• NETD: Less than 20 mK
• Magnification: 1x
• Detection Range: Up to 2100 yards
• Laser Rangefinder: Up to 1200 yards
• Battery Type: Lithium Ion 18650
• Battery Life: Up to 5 hours
• Storage: Supports up to 128 GB Micro SD card
• Water Resistance: IP67
• Housing Material: Aluminum alloy
• Weight: 424 g

Pros

• Functions as a clip on, handheld spotter, or standalone thermal scope
• High resolution thermal sensor produces detailed images
• Built in laser rangefinder improves ranging accuracy
• Supports photo plus video recording with recoil activated recording
• WiFi connectivity enables wireless control
• Lightweight yet durable aluminum alloy construction
• IP67 weather resistance for dependable outdoor use
• Multiple color palettes, reticle styles, plus scene modes

Cons

• Micro SD card is not included

5) Guide USA TB Series 1250 PRO Thermal Clip-On 

The Guide USA TB Series 1250 PRO is designed for hunters who demand exceptional image quality without adding unnecessary weight to their rifle setup. Its lightweight magnesium alloy housing is engineered to improve handling while maintaining the durability needed for demanding outdoor conditions. As a result, it remains comfortable to carry during extended hunts without compromising stability.

A high resolution 1280 × 1024 thermal sensor delivers outstanding image detail, making it easier to identify animals at long distances or in challenging weather conditions. The Full HD AMOLED display produces bright, lifelike visuals with a wide viewing angle, helping you maintain a clear view of your surroundings. Coupled with an impressive thermal sensitivity, the optic provides excellent target separation in darkness, fog or dense vegetation.

Designed as a dedicated clip on solution, this model preserves the performance of your daytime scope through its true 1x magnification. A detection range of up to 2800 yards gives hunters confidence when scanning large open areas, while multiple display color options allow the image to be adjusted for different environments or personal preferences. Its smooth 50 Hz refresh rate also contributes to a more natural viewing experience when tracking moving targets.

Built to withstand demanding field conditions, the TB Series 1250 PRO carries an IP68 weather resistance rating that offers excellent protection against water and dust. The rechargeable battery system provides up to six hours of runtime, with two 18650 batteries included for longer hunting sessions. Although this model represents a premium investment, its combination of advanced imaging, lightweight construction, plus rugged reliability makes it an excellent choice for serious hunters.

Specifications

• Magnification: 1x
• Objective Lens Diameter: 50 mm
• Sensor Resolution: 1280 × 1024 pixels
• Display Resolution: 1920 × 1080 AMOLED
• Refresh Rate: 50 Hz
• Detection Range: Up to 2800 yards
• NETD: 18 mK
• Battery Type: Lithium Ion 18650
• Battery Life: Up to 6 hours
• Field of View: 14 to 17.5 degrees
• Eye Relief: 20 mm
• Water Resistance: IP68
• Weight: 21.76 oz

Pros

• Exceptional 1280 × 1024 thermal resolution
• Full HD AMOLED display delivers sharp, vibrant images
• Lightweight magnesium alloy construction
• Wide field of view improves situational awareness
• Long detection range for spotting distant targets
• IP68 weather resistance for harsh environments
• Includes two rechargeable 18650 batteries
• Smooth 50 Hz refresh rate for tracking moving targets

Cons

• Premium price may not suit every budget

6) SIG SAUER ECHO CV25 1X25mm Thermal Clip-On 

If you’re searching for the best Thermal Clip On for a lightweight and highly portable setup, the SIG SAUER ECHO CV25 deserves serious consideration. Its compact five inch design attaches quickly to a daytime scope using a quick disconnect mount, allowing fast transitions between firearms while maintaining a familiar shooting experience. The optic can also function as a standalone thermal sight, giving users greater flexibility in the field.

Equipped with a 640 × 512 thermal sensor, the ECHO CV25 delivers detailed thermal imagery with excellent sensitivity for spotting heat signatures in darkness, fog, or light vegetation. A parallax free eyepiece helps maintain a clear sight picture, while the AMOLED display produces crisp visuals that are easy to interpret during extended hunting sessions. The true 1x optical design also preserves the natural performance of your daytime optic.

The integrated BDX 2.0 system expands its capabilities by allowing configuration through a compatible mobile app. Live video streaming, photo capture, plus video recording with audio make it easy to document hunts or review footage later. A removable rechargeable 18650 battery powers the optic for up to nine hours, reducing the need for frequent battery changes during long outings.

Despite its compact dimensions, this thermal clip on is built for demanding conditions. An IP67 waterproof rating provides dependable protection against rain and dust, while the quick disconnect mount allows rapid installation whenever thermal capability is needed. Hunters looking for a compact optic that combines modern connectivity, solid imaging performance, plus impressive battery life will appreciate what this model has to offer.

Specifications

• Magnification: 1-8x
• Objective Lens Diameter: 25 mm
• Sensor Resolution: 640 × 512 pixels
• Display Resolution: 1024 × 768 AMOLED
• Refresh Rate: 50 Hz
• NETD: 20 mK
• Battery Type: Rechargeable 18650
• Battery Life: Up to 9 hours
• Field of View: 17 degrees
• Water Resistance: IP67
• Weight: 18.8 oz (535 g)
• Length: 5 in (126 mm)

Pros

• Compact design is easy to carry and mount
• High resolution thermal sensor delivers detailed images
• Can be used as a clip on or standalone thermal sight
• Quick disconnect mount allows fast installation
• Records photos plus video with audio
• BDX 2.0 supports app configuration and live video streaming
• Up to 9 hours of battery life
• IP67 waterproof construction for dependable outdoor use

Cons

• Smaller objective lens limits light collection compared to larger models

7) Athlon Optics Cronus ATS Pro 35CL-640 6.4x Thermal Clip-on 

The Athlon Optics Cronus ATS Pro 35CL 640 is designed for hunters who want a thermal optic that combines reliable imaging with a wide range of modern features. It can be mounted directly to a compatible optic or attached to a Picatinny rail, giving users the flexibility to configure their rifle according to the task at hand. Its lightweight construction also helps maintain a comfortable balance during extended hunts.

A 640 × 512 thermal sensor produces detailed images that remain clear in low light, darkness, or adverse weather conditions. The matching display resolution delivers a sharp viewing experience, while the smooth 50 Hz refresh rate helps track moving targets with minimal lag. Seven color palette options, along with multiple detection sensitivity settings, allow you to tailor the image for changing environments and hunting conditions.

Convenience is another strength of this thermal clip on. Built in WiFi and Bluetooth simplify wireless connectivity, while the 32 GB internal memory provides ample space for storing recorded footage. Auto shot recording captures key moments without requiring manual activation, whereas One Shot Zero speeds up the sighting process. Eco Mode and automatic power off help extend battery life when spending long hours in the field.

The Cronus ATS Pro is built to withstand demanding outdoor use with waterproof, fog proof and shock proof construction. Despite its rugged design, it weighs only 17 ounces, making it easier to carry than many competing models. Although it offers fewer published specifications than some premium alternatives, its combination of dependable thermal performance, practical features, plus durable construction makes it an excellent option for serious hunters.

Specifications

• Magnification: 6.4x
• Objective Lens Diameter: 35 mm
• Sensor Resolution: 640 × 512 pixels
• Display Resolution: 640 × 512 pixels
• Refresh Rate: 50 Hz
• Battery Type: Lithium Ion
• Weight: 17 oz
• Eye Relief: 0.8 in

Pros

• High resolution thermal sensor delivers clear images
• Can be mounted directly to an optic or a Picatinny rail
• Built in WiFi plus Bluetooth connectivity
• 32 GB internal memory for storing recordings
• Auto shot recording captures important moments
• One Shot Zero simplifies sight adjustments
• Waterproof, fog proof, plus shock proof construction
• Lightweight design improves handling

Cons

• Internal storage is limited to 32 GB, which may fill quickly when recording frequent videos

Read more: 6 Best Arken Scopes for 22LR

Advantages of Using a Thermal Clip On

Enhanced Nighttime Visibility

One of the biggest advantages of using the best Thermal Clip On is the ability to detect heat signatures regardless of lighting conditions. Unlike traditional optics that rely on available light, thermal imaging reveals animals, people or other heat sources in complete darkness. This makes it easier to locate targets during night hunts or in areas with little to no ambient light.

Retains Your Existing Daytime Scope

A thermal clip on allows you to continue using your preferred daytime riflescope instead of replacing it with a dedicated thermal optic. Since your familiar reticle and shooting setup remain unchanged, the transition to thermal viewing is quicker and more comfortable. Many hunters appreciate this because they do not have to learn a new optic or significantly alter their rifle configuration.

Performs Well in Challenging Conditions

Thermal clip ons remain effective when visibility is reduced by fog, light rain, smoke or dense vegetation. Rather than depending on visible light, they detect temperature differences, helping you identify animals that might otherwise remain hidden. This added capability can improve confidence when hunting in unpredictable environments.

Quick to Install and Remove

Most thermal clip ons are designed for fast attachment using compatible mounting systems, allowing you to switch between daytime and thermal viewing with minimal effort. This flexibility is especially useful for hunters who do not require thermal imaging throughout an entire outing. Once daylight returns, the device can be removed just as quickly.

Versatile for Different Hunting Applications

Many thermal clip ons offer more than one way to use the device. Depending on the model, they may also function as a handheld thermal monocular or a standalone thermal sight with the appropriate accessories. This versatility reduces the need to carry multiple thermal devices, making them a practical choice for hunters who value convenience.

Advanced Features Improve the Hunting Experience

Modern thermal clip ons often include useful technologies such as video recording, photo capture, WiFi connectivity, laser rangefinders, multiple color palettes and recoil activated recording. These features not only enhance the overall experience but also allow hunters to document their outings, customize image settings, or estimate distances more accurately in the field.

Built for Demanding Outdoor Use

Quality thermal clip ons are engineered to withstand harsh hunting environments. Many feature durable metal housings, weather resistant construction, rechargeable battery systems, plus reliable performance across a wide range of temperatures. This rugged design helps ensure consistent operation during extended hunts, giving users confidence that their equipment will perform when conditions become challenging.

See more: 6 Best Handheld Monocular Telescopes

Factors to Consider when Choosing the Best Thermal Clip On

Thermal Sensor Resolution

Thermal sensor resolution is one of the first specifications to evaluate because it has a direct impact on image detail and target recognition. A higher resolution sensor produces sharper thermal images, making it easier to distinguish animals from their surroundings, especially at longer distances. If you are investing in the best Thermal Clip On, choosing a model with sufficient resolution for your typical hunting environment will provide a more confident viewing experience.

Detection Range

Detection range determines how far a thermal clip on can identify a heat source before it becomes visible to the naked eye. Hunters who spend most of their time in open fields or large agricultural properties may benefit from a longer detection range, while those hunting in wooded areas may not require the same level of reach. Matching the detection capability to your hunting style helps you avoid paying for performance you may never use.

Image Quality and Thermal Sensitivity

Image quality depends on more than sensor resolution alone. Thermal sensitivity, commonly measured as NETD, influences how well the optic distinguishes subtle temperature differences between objects. Lower NETD values generally produce clearer images with better contrast, particularly during poor weather or when temperatures between the target and the background are similar. A combination of good thermal sensitivity and image processing contributes to a more detailed viewing experience.

Compatibility with Your Daytime Scope

Not every thermal clip on is compatible with every riflescope, so it is important to confirm that the mounting system and dimensions match your existing optic. A properly fitted clip on helps maintain alignment while preserving your familiar reticle and shooting setup. When comparing the best Thermal Clip On options, selecting one that integrates smoothly with your current equipment can save both time and additional expense.

Battery Life and Power Options

Battery performance becomes increasingly important during long nights in the field. Some thermal clip ons rely on rechargeable batteries, while others use removable battery systems that allow quick replacements without ending a hunt. Considering average runtime, charging convenience, and battery availability helps ensure your optic continues performing whenever you need it most.

Durability and Weather Resistance

Outdoor conditions can change quickly, making durability an essential consideration. A well built thermal clip on should resist rain, dust, recoil, and fluctuating temperatures without affecting performance. Weather resistance ratings, quality housing materials and dependable construction all contribute to an optic that remains reliable throughout demanding hunting seasons.

Additional Features

Modern thermal clip ons often include features that improve convenience and overall performance. Video recording, wireless connectivity, laser rangefinders, multiple color palettes, recoil activated recording, and handheld viewing capabilities can all add value depending on your needs. Rather than choosing the model with the longest feature list, focus on the functions that will genuinely improve your hunting experience. Taking the time to compare these capabilities will help you identify the best Thermal Clip On for your budget, hunting style and long term expectations.

FAQs ( Frequently Asked Questions)