ATN OTS LT 320 4-8x

• 320x240 thermal sensor: The sensor gives this monocular enough detail for reliable heat-source detection while keeping the image clean and easy to interpret during scanning, game recovery, and general observation.
• 4-8x viewing range: The base magnification provides a practical balance between area coverage and target detail, while the higher setting helps inspect distant heat signatures more closely without carrying a larger device.
• 60 Hz refresh rate: A faster refresh rate makes panning smoother and helps moving animals, people, or vehicles appear more natural when tracking across the scene.
• Compact handheld design: At 560.00 g and 195.00 mm long, the monocular remains easy to carry on foot and comfortable to use for repeated checks during long outings.
• Weather-ready construction: The waterproof and fogproof housing supports dependable use in rain, damp air, and changing temperatures, so the optic stays usable when conditions are less than ideal.

About the ATN OTS LT Series

ATN introduced the OTS LT thermal monocular at SHOT Show 2020 as a compact handheld thermal scanner built for straightforward observation rather than a long list of menu-driven extras. In the ATN range, the OTS LT sits as a lighter, simpler thermal option for users who want fast heat detection for field use, game recovery, and search tasks. The series is built around the Obsidian LT Core, paired with a simple graphical interface that keeps operation direct and easy to learn in low-light conditions.

The family includes 160- and 320-resolution variants, giving users a choice between basic detection capability and improved image detail. Across the range, ATN uses a compact ergonomic body intended for handheld scanning, with display modes such as White Hot and Black Hot to help adapt the image to terrain, vegetation, and target contrast. The OTS LT concept focuses on practical thermal observation: a monocular that is easy to carry, quick to deploy, and suited to users who need thermal imaging for spotting and locating rather than for mounting on a rifle.

About the ATN OTS LT 320 4-8x

The ATN OTS LT 320 4-8x is a handheld thermal monocular designed for users who need more image detail than entry-level thermal scanners while still keeping the system compact and uncomplicated. Its 320x240 sensor with 12.00 μm pixel pitch gives a clearer thermal picture than lower-resolution options, which helps separate animals, people, and background heat sources more confidently at distance. Combined with a 1510.00 m detection range, it is well suited to scanning open ground, checking tree lines, and locating heat signatures before moving closer for confirmation.

The 4.00 x to 8.00 x magnification range gives this model a useful middle ground between wider-area observation and closer inspection. At the lower setting, the 110.00 m/1000m field of view helps cover ground efficiently, while the higher setting makes it easier to study shape and movement without changing position. The 60.00 Hz refresh rate keeps motion smoother during panning, which is especially helpful when following moving targets or scanning from a vehicle or elevated position.

ATN pairs the sensor with a 1280x960 Micro - HD display, giving the user a crisp viewing image that makes prolonged observation less fatiguing. The monocular also remains practical in the field thanks to its Li-ion power supply, 9.00 h battery life, and a housing that is both waterproof and fogproof. With dimensions of 195.00 mm in length and a weight of 560.00 g, it stays portable enough for regular handheld use while still offering the reach expected from a 35 mm thermal monocular.

About ATN

ATN was founded in 1995 in Silicon Valley, California, and it focuses on night-vision, thermal-imaging, and digital day-and-night optics. The company is now headquartered in Doral, Florida and is known in this segment for building electronic optics that combine observation capability with digital imaging technology. Its product range covers traditional image-intensifier night vision as well as digital and thermal systems, giving ATN a broad presence across hunting, observation, and field-use optics.

A notable part of ATN’s development has been its move into digital platforms such as the Obsidian 4 Dual Core platform, introduced in 2018, and its wider Smart HD product concept. ATN also introduced the X-Sight II HD digital day-and-night sight line in 2015 and later expanded its thermal lineup with products such as the ThOR LT series in 2020. That background is directly relevant to the OTS LT, which reflects ATN’s emphasis on practical electronic optics with compact housings and straightforward field operation.

Main Features

• Series: ATN OTS LT
• Magnification: 4.00 x - 8.00 x
• Objective lens diameter: 35.00 mm
• Field of view: 110.00 m/1000m
• Field of view (angular): 6.30 °
• Minimum field of view: 82.00 m/1000m
• Maximum field of view: 110.00 m/1000m
• Eye relief: 19.00 mm
• Detection range: 1510.00 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
• 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
• Waterproof: Yes
• Fogproof: Yes
• Built-in rangefinder: No
• Image stabilizer: No
• Color: Black

Warranty

ATN covers the OTS LT 320 4-8x with a 3-year warranty. This gives the thermal monocular a clearly stated manufacturer warranty period for normal ownership and field use.

In the Box

• ATN OTS LT thermal monocular
• USB Type-C charging cable