10 Best Thermal Monoculars 2025 in the United States

The ATN BlazeTrek-619 is a solid choice for anyone looking for a thermal monocular that balances performance and features. It offers a high resolution of 640x512 with a 12-micron sensor, which means you get sharp and detailed thermal images. The 19mm lens supports a detection range of nearly 1,000 meters, making it useful for spotting heat signatures at a good distance. Its refresh rate of 50 Hz ensures smooth image updates, which is especially helpful if you’re tracking moving objects. The device is fairly lightweight at just over 11 ounces and compact enough to carry easily during outdoor activities. A strong point is its sensitivity rating (NETD <25mK), which contributes to clear temperature differentiation and better image quality.

The ATN BlazeHunter Thermal Imaging Monocular features a sharp 640x512 resolution sensor and a high-quality 0.41-inch OLED display, delivering clear, detailed thermal images that help spot even small temperature differences. This makes it ideal for hunters or outdoor enthusiasts who need reliable detection in various conditions. Its 35mm lens and 12-degree field of view provide a good balance between detail and a wide enough view to scan the environment effectively. The built-in laser range finder adds practical value by measuring distances quickly, which can be handy in the field.

The ATN BlazeTrek-319 Thermal Imaging Monocular stands out with its advanced 384x288 thermal sensor, offering a clear and high-quality image with a 50 Hz refresh rate. Its 19mm lens provides an impressive detection range of up to 990 meters, making it suitable for long-distance observations. The device’s NETD rating of <25mK ensures high sensitivity to temperature variations, resulting in better image clarity even in challenging conditions.