ATN Mars 4 640 1.5-15x

• 640x480 thermal sensor: The higher-resolution sensor gives the ATN Mars 4 640 1.5-15x more detail to work with at distance, helping separate animals from background clutter and making target identification easier before taking a shot.
• 1.5-15x magnification range: A low starting magnification supports scanning and close-to-medium engagement, while the upper end gives enough image scale for more deliberate shot placement when the target is farther out.
• 25 mK NETD sensitivity: Strong thermal sensitivity helps the scope show smaller temperature differences, which improves scene contrast in humid weather, changing terrain, and other conditions where weaker thermal devices lose definition.
• Built-in recording and Wi-Fi connectivity: Video capture, image capture, and Wi-Fi support make it easier to document hunts, review shot placement, or stream the view to a second device without adding external accessories.
• 18-hour internal battery: The integrated Li-ion power system is designed for long sessions in the field, reducing the need for battery changes during night hunting or extended observation.

About the ATN Mars 4 Series

ATN Mars 4 is the company’s fourth-generation Smart HD thermal riflescope series, built for hunters and shooters who want a thermal sight that combines observation, aiming, and onboard digital tools in one unit. Across the series, ATN offered multiple sensor resolutions, objective lens sizes, and magnification ranges, allowing the platform to cover everything from closer woodland use to more open-country shooting. A defining part of the series is the Obsidian IV dual-core processor, which supports the digital feature set that made the Mars 4 line distinct within ATN’s thermal lineup.

Depending on model, Mars 4 scopes use 384x288 or 640x480 thermal sensors and share functions such as a ballistic calculator, one-shot zeroing, Recoil Activated Video, Wi-Fi streaming, and simultaneous recording. The series also incorporates tools such as a smart rangefinder, electronic compass, and profile manager, reflecting a design approach focused on practical field use rather than a simple thermal image alone. In ATN’s product history, the Mars 4 sits as an earlier Smart HD thermal family before the newer Mars 5 XD Evo generation, and it remains recognizable for combining thermal detection capability with a broad digital operating system in a conventional riflescope format.

About the ATN Mars 4 640 1.5-15x

The ATN Mars 4 640 1.5-15x is configured for shooters who need a thermal riflescope that can cover both scanning and more precise aiming without moving to a second optic. Its 1.5-15x magnification range gives it a broad working envelope: the lower end is useful when searching wider areas or following moving game at shorter distances, while the higher end provides more image scale for careful shot placement. Combined with a 640x480 thermal sensor and a stated 1050.00 m detection range, this model is suited to situations where early heat-signature detection matters but target detail also needs to hold up as magnification increases.

Thermal image quality is supported by a 25.00 mK NETD, which helps the scope show finer temperature differences and maintain separation between animals, vegetation, and background terrain when conditions are less than ideal. The 1280x720 Micro - HD display presents the processed image at a resolution that supports aiming and menu use without feeling overly coarse. ATN also equips this model with a Multi reticle, giving the user flexibility to match the sight picture to different rifles or shooting preferences.

In practical use, the scope’s digital functions are a major part of its appeal. It supports image capture and video recording at 1280x960 @ 60 fps, along with video output and WiFi connectivity, so the scope can serve as both an aiming device and a recording platform. The aluminium housing, waterproof and fogproof construction, and 18.00 h battery life make it better suited to long night sessions where weather resistance and operating time matter as much as image performance.

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 has built its reputation around electronic sporting optics that combine imaging hardware with onboard digital functions. Its catalog spans traditional image-intensifier night vision, digital night vision, thermal devices, and Smart HD optics for hunting and observation.

A key part of ATN’s development in this category was the introduction of the Obsidian 4 Dual Core platform in 2018, which underpinned many of its feature-rich digital and thermal products. ATN also became well known for digital day-and-night systems such as the X-Sight II HD and for expanding its thermal lineup with dedicated hunting models. In the thermal riflescope segment, ATN is particularly associated with combining thermal sensors, onboard recording, wireless connectivity, and ballistic software in a familiar riflescope-style housing.

Main Features

• Magnification: 1.50-15.00 x
• Objective lens diameter: 25.00 mm
• Field of view: 416.00 m/1000m
• Field of view (degrees): 24.00 °
• Minimum field of view: 330.00 m/1000m
• Maximum field of view: 416.00 m/1000m
• Eye relief: 90.00 mm
• Detection range: 1050.00 m
• Thermal sensor resolution: 640x480
• Thermal sensor pixel count: 0.31 MP
• NETD: 25.00 mK
• Refresh rate: 25.00 Hz
• Display type: Micro - HD
• Display resolution: 1280x720
• Reticle: Multi
• Image capture: Yes
• Image resolution: 1280x960 @ 60 fps
• Video recording: Yes
• Video resolution: 1280x960 @ 60 fps
• Video output: Yes
• Connectivity: Wifi
• Built-in rangefinder: No
• Battery life: 18.00 h
• Power supply: Li-ion Internal Battery
• Housing material: Aluminium
• Length: 343.00 mm
• Width: 76.00 mm
• Height: 76.00 mm
• Weight: 920.00 g
• Working temperature range: -28°C to 48°C
• Waterproof: Yes
• Fogproof: Yes
• Color: Black

Warranty

ATN covers this thermal riflescope for 3 years. That warranty period applies to the scope under normal use and gives clear long-term support for a digital thermal optic in this class.