ATN OTS LT 320 3-6x

• 320x240 thermal sensor: The higher-resolution 12 μm sensor gives this handheld thermal monocular a cleaner image and better target definition than entry-level thermal viewers, which helps when scanning tree lines, field edges, or recovery routes.
• 3-6x viewing range: The base 3x view offers useful reach for observation, while the 6x maximum setting lets the user inspect heat signatures more closely without carrying a larger device.
• 60 Hz refresh rate: A fast refresh rate keeps motion looking smoother when panning across terrain or following moving animals, making the image easier to interpret in real time.
• Compact weather-resistant housing: At 560 g and 195 mm long, the OTS LT remains easy to carry for long periods, while its waterproof and fogproof construction supports use in damp, cold, and changing outdoor conditions.
• 9-hour internal battery: The built-in Li-ion power system supports extended observation sessions without frequent charging stops, which is practical for night hunts, patrol work, and search tasks.

About the ATN OTS LT Series

The ATN OTS LT series was introduced as a handheld thermal scanner built for observation rather than weapon mounting, giving users a simpler and lighter way to add thermal imaging to hunting, recovery, and search work. First shown at SHOT Show 2020, the series sits in ATN’s lighter thermal lineup and focuses on practical field use with a compact body, straightforward controls, and a clean menu structure based on the Obsidian LT Core.

The range includes 160- and 320-resolution variants, allowing users to choose between a more basic entry point and improved image detail for longer or more demanding observation. Across the series, ATN uses an ergonomic housing that is easy to carry in one hand and simple to operate in the dark. The OTS LT family also offers White Hot and Black Hot viewing modes, which helps adapt the image to terrain, background temperature, and personal preference. ATN positions the series for game detection and recovery as well as search-and-rescue use, where quick scanning, reliable thermal contrast, and long battery endurance matter more than a large or complex feature set.

About the ATN OTS LT 320 3-6x

The ATN OTS LT 320 3-6x is a thermal monocular configured for users who need more reach and image detail than a basic scanner, while still keeping the unit compact enough for regular handheld use. Its 320x240 sensor with a 12.00 μm pixel pitch gives it the thermal resolution needed to separate heat sources more clearly, which is useful when checking whether a distant spot is game, a person, or background clutter. With a detection range of 910.00 m, it is suited to scanning open ground, field margins, and wider observation areas where early detection matters.

The viewing system combines 3.00x to 6.00x magnification with a 1280x960 Micro-HD display. In practice, that means the user can start with a wider view for searching, then move to higher magnification for closer inspection without changing devices. The 60.00 Hz refresh rate helps keep the image fluid during panning, which makes moving targets easier to follow and reduces the choppy feel that can make thermal observation tiring over time. Its 8.80 ° field of view still gives enough area coverage for scanning from a fixed position or while moving slowly through terrain.

Physically, this model is built for field carry. The 560.00 g weight and 195.00 mm length keep it manageable in one hand, while the waterproof and fogproof housing supports use in poor weather and shifting temperatures. A built-in Li-ion battery rated for 9.00 h reduces dependence on spare cells, making the monocular practical for long evening sessions, recovery work, and general thermal observation.

About ATN

ATN was founded in 1995 in Silicon Valley, California, and is a United States company headquartered in Doral, Florida. The company focuses on night-vision, thermal-imaging, and digital day-and-night optics, covering handheld viewers, weapon sights, and smart digital systems. Its product range spans traditional image-intensifier night vision as well as digital and thermal devices, which places ATN firmly in the field of observation and hunting optics.

ATN is also known for developing digital platforms that combine imaging hardware with onboard processing. Its Smart HD products include 4K-resolution digital optics for day-and-night use, and the company introduced the X-Sight II HD series in 2015. In 2018, ATN launched products built around its Obsidian 4 Dual Core platform, reflecting its emphasis on integrating sensors, displays, and digital control systems into practical field optics.

Main Features

• Product type: Thermal monocular
• Series: ATN OTS LT
• Magnification: 3.00 x - 6.00 x
• Objective lens diameter: 25.00 mm
• Field of view: 153.00 m/1000m
• Field of view (deg.): 8.80 °
• Min. field of view: 115.00 m/1000m
• Max. field of view: 153.00 m/1000m
• Eye relief: 19.00 mm
• Detection range: 910.00 m
• Thermal sensor resolution: 320x240
• Thermal sensor pixel count: 0.08 MP
• Pixel pitch: 12.00 μm
• Refresh rate: 60.00 Hz
• Display type: Micro - HD
• Display resolution: 1280x960
• Display pixel count: 1.23 MP
• Built-in rangefinder: No
• Battery type: Li-ion
• Battery life: 9.00 h
• Operating temperature: -28°C to 48°C
• Length: 195.00 mm
• Width: 75.00 mm
• Height: 66.00 mm
• Weight: 560.00 g
• Color: Black
• Waterproof: Yes
• Fogproof: Yes

Warranty

ATN provides a 3-year warranty for the OTS LT 320 3-6x, covering the product with a clearly stated manufacturer warranty period for this thermal monocular.

In the Box

• Soft Carrying Case
• USB-C Cable
• Lens Tissue
• Manual