Pixfra® Draco D635N-4K 940 nm Multispectral Binocular

The Pixfra Draco D635N-4K 940 nm is a multispectral binocular designed for daytime, twilight, and nighttime observation. It combines a 640 × 512 thermal imaging channel, a 4K digital day/night channel, an integrated 1,000 m laser rangefinder, and a removable 940 nm infrared illuminator. Electronic image stabilization, Defog processing, GPS, a digital compass, and dual-channel viewing modes make it suitable for wildlife observation, terrain scanning, search operations, and extended field use.

640 × 512 Thermal Imaging Channel

The thermal channel uses an uncooled VOx sensor with a resolution of 640 × 512 pixels, a 12 μm pixel pitch, a refresh rate of 50 Hz, and NETD sensitivity of ≤15 mK. Combined with the 35 mm F1.0 objective lens, the sensor delivers detailed heat-signature detection and helps distinguish subtle temperature differences in low-contrast conditions.

The higher-resolution sensor provides greater image detail and a wider field of view than lower-resolution thermal detectors. This improves situational awareness when scanning woodland edges, open terrain, dense vegetation, or other complex environments.

Wide Field of View and Long Detection Range

The thermal channel provides 2.5× base magnification and a field of view of approximately 21.9 × 17.6 m at 100 m. This wide image makes it easier to scan large areas and locate heat signatures without constantly repositioning the binocular.

The maximum thermal detection range is up to 1,800 m, while digital zoom from 1× to 8× allows closer examination of the image. The stated detection range indicates the ability to detect a heat source and should not be interpreted as identification range.

4K Digital Day and Night Channel

The digital channel features a 1/1.8-inch CMOS sensor with a resolution of 3840 × 2160 pixels and a 55 mm F2.0 objective lens. It provides 5.5× base magnification and a field of view of approximately 14.0 × 8.8 m at 100 m.

While the thermal channel quickly reveals the presence of a heat signature, the 4K digital channel provides additional detail for assessing the observed object, surrounding terrain, vegetation, and obstacles. It can be used in full color during daylight or with infrared illumination in low-light and nighttime conditions.

Thermal, Visible, and Picture-in-Picture Modes

The Draco D635N-4K supports Thermal, Visible, and Picture-in-Picture viewing modes. This allows the user to switch between thermal imaging and the digital channel or display information from both channels at the same time.

Picture-in-Picture mode is particularly useful when maintaining a broad view of the surrounding scene while observing thermal detail in a selected area. Together with the integrated rangefinder, the dual-channel system provides detection, visual assessment, and distance measurement in a single device.

PIPS 3.0, EIS, and Defog Processing

Pixfra PIPS 3.0 image-processing technology enhances contrast, detail, and overall image readability across both the thermal and digital channels. It is designed to maintain a clear, usable image in conditions where temperature contrast or visible detail is limited.

Electronic image stabilization helps reduce image shake during handheld observation, improving comfort and readability over longer periods. The Defog function enhances contrast in fog, haze, and other conditions with reduced visibility.

940 nm Infrared Illuminator

The removable 940 nm infrared illuminator provides night-vision illumination at distances of up to 350 m. Compared with an 850 nm illuminator, the 940 nm wavelength produces a less visible red glow at the emitter, making it better suited to discreet wildlife observation and other applications where a less conspicuous light source is preferred.

Integrated Laser Rangefinder

The integrated Class 1 laser rangefinder measures distances out to 1,000 m with an accuracy of ±1 m. Ranging information is displayed directly in the image, eliminating the need to operate a separate handheld rangefinder.

Full HD OLED Display and Image Modes

The image is displayed on a 0.49-inch OLED screen with a resolution of 1920 × 1080 pixels. The thermal channel offers six color palettes: White Hot, Black Hot, Iron Red, Alarm, Green Hot, and Sepia.

The digital channel provides Color, Black and White, Green, Yellow, and Auto display modes. The 50 Hz refresh rate supports smooth image rendering when tracking moving objects, scanning terrain, or using the binocular handheld.

Recording and Navigation Functions

The Draco D635N-4K supports photo capture, video recording with audio, an onboard gallery, Hot Spot Tracking, GPS, a digital compass, standby mode, defective pixel correction, and automatic, semi-automatic, or manual flat-field correction.

Built-in 64 GB storage provides space for recorded photos and videos. A Wi-Fi hotspot allows connection to the Pixfra Outdoor app for live viewing, file transfer, and device management.

Ergonomic Binocular Adjustment

The binocular features diopter adjustment from -5 D to +5 D, 15 mm eye relief, and an adjustable interpupillary distance from 60 to 74 mm. These settings allow the eyepieces to be adapted to different users for more comfortable extended observation.

A multifunction control dial and four buttons provide direct access to the main functions, even when operating the device in darkness or while wearing gloves.

Replaceable Batteries and Durable Construction

Power is supplied by two replaceable 18650 rechargeable batteries. The device can also be powered or charged through its USB-C port using a 5 V power source. Battery life is at least 8 hours at 25 °C with Wi-Fi disabled.

The housing is rated IP67 for protection against dust and water and is designed to operate in temperatures from -30 °C to +55 °C. The binocular measures approximately 195 × 130.6 × 61.6 mm and weighs no more than 620 g.

Package Contents

The package includes the Pixfra Draco D635N-4K 940 nm multispectral binocular, a removable 940 nm IR illuminator, four rechargeable 18650 batteries, a battery charger, a USB-C cable, a neck strap, a lens cleaning cloth, a carry bag with chest strap, a quick-start guide, and product documentation.

Benefits You Need to Know:

• 640 × 512 VOx thermal sensor
• 12 μm pixel pitch
• NETD sensitivity of ≤15 mK
• 50 Hz thermal refresh rate
• 35 mm F1.0 thermal objective lens
• 2.5× thermal base magnification
• thermal field of view of 21.9 × 17.6 m at 100 m
• thermal detection range of up to 1,800 m
• 1/1.8-inch 4K CMOS digital sensor
• 3840 × 2160 digital resolution
• 55 mm F2.0 digital objective lens
• 5.5× digital base magnification
• 1× to 8× digital zoom
• Thermal, Visible, and Picture-in-Picture modes
• PIPS 3.0 image processing
• electronic image stabilization
• Defog image enhancement
• removable 940 nm IR illuminator with a range of up to 350 m
• integrated laser rangefinder with a range of up to 1,000 m
• rangefinding accuracy of ±1 m
• 0.49-inch OLED display with 1920 × 1080 resolution
• six thermal color palettes
• 64 GB of built-in storage
• photo and video recording with audio
• Wi-Fi connectivity and Pixfra Outdoor app support
• GPS, digital compass, and Hot Spot Tracking
• adjustable interpupillary distance from 60 to 74 mm
• diopter adjustment from -5 D to +5 D
• two replaceable 18650 batteries
• at least 8 hours of battery life
• IP67-rated construction
• weight of no more than 620 g