• Pulsar Symbion LRF DXT50 front right perspective showing objective lenses, housing ergonomics, and built-in laser rangefinder
  • Top-down right perspective of the Pulsar Symbion LRF DXT50 highlighting top panel controls, laser rangefinder port, and mounting layout
  • Front perspective of the Pulsar Symbion LRF DXT50 multispectral binocular displaying both objective lenses and the central laser rangefinder aperture
  • Front left angled view of the Pulsar Symbion LRF DXT50 multispectral thermal and digital binocular chassis
  • Front angled down perspective of the Pulsar Symbion LRF DXT50 multispectral binocular showing the dual objective lenses, upper housing contour, and integrated laser rangefinder aperture
  • Rear left view of the Pulsar Symbion LRF DXT50 displaying the dual eyepiece eyepupil assembly, diopter adjustment ring, and strap mount
  • Rear direct view of the Pulsar Symbion LRF DXT50 multispectral binocular showing the dual eyepieces, diopter adjustment rings, and top-mounted control button layout.
  • Top-down left perspective of the Pulsar Symbion LRF DXT50 multispectral binocular showcasing the complete top control button layout and optical focus wheel structure
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Pulsar Symbion LRF DXT50 Multispectral Binoculars

  • Thermal Resolution: 1280 x 1024
  • Thermal Lens: 50mm
  • Pixel Interval: 12µm
  • NETD: < 40mK
  • Thermal FOV: 17.5x30.7°
What do these specs mean?

Understanding Thermal Specs

Thermal Resolution

Think of this like a TV screen (e.g., 1280x1024). A higher number means more pixels. More pixels give you a sharper, more detailed image, allowing you to digitally zoom in much further before the image gets blurry or pixelated.

Thermal Lens

Similar to a camera lens, measured in millimeters (e.g., 50mm). A larger lens gathers more thermal energy and "sees" further, giving you a longer detection range. However, larger lenses typically result in a narrower field of view.

Pixel Interval (Pitch)

The physical distance between pixels on the sensor, measured in microns (e.g., 12µm). A smaller number means the pixels are packed tighter together, which produces a crisper image and extends your optical magnification without needing a massive lens.

NETD (Thermal Sensitivity)

Measures how tiny of a temperature difference the device can detect. Lower is better (e.g., < 15mK beats < 25mK). A lower NETD means you get a much clearer picture in terrible weather (rain, thick fog, high humidity) and superior contrast between the animal and its surroundings.

Thermal FOV (Field of View)

How wide of an area you can see at once. A wider FOV is excellent for scanning large areas quickly to spot movement. A narrower FOV usually means the device has higher magnification, perfect for identifying specific targets at long distances.

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SKU: 77456

Detection Range

Pig
Kudu
Elephant
1353mDetection
694mRecognition
347mIdentification
2029mDetection
1042mRecognition
521mIdentification
4059mDetection
2083mRecognition
1042mIdentification

Understanding the Math

We believe in honest, real-world field specifications.

Detection ranges are calculated by taking the manufacturer's baseline testing and physically scaling it to the average height of the target animal.

Recognition & Identification are calculated using Johnson's Criteria—the military standard for thermal optics. By analyzing the physical properties of the camera's lens and sensor pitch, we calculate exactly when the target will take up enough pixels on your screen to be clearly identified.

Note: High humidity, thick coats, and environmental background temperatures will reduce these maximum optical distances in the field.
Key Features & Highlights

Pulsar Symbion LRF DXT50 Key Features:

  • Multispectral HD Channels: Flagship 1280x1024 thermal core (12 um pitch) alongside a 3840x2160 4K digital CMOS sensor.
  • Sub-20mK System NETD: Isolates subtle heat variances in harsh weather conditions like fog, rain, or high humidity.
  • Integrated 1500m Laser Rangefinder: Measures distance out to 1,500m with +/-1m measurement accuracy.
  • 2300m Thermal Detection Range: Extended detection for game tracking, wildlife observation, and perimeter surveillance.
  • Stream Vision Ballistics Integration: On-board trajectory calculations supported via the Stream Vision Ballistics App.
  • Dual APS5 Battery System: Up to 8 hours of continuous operation with dual external quick-change APS5 battery packs.
  • Rugged IP67 Housing: Completely dust-tight and submersible waterproof housing operating from -25°C to +50°C.
  • Multimedia & Connectivity: Integrated 64GB memory with 1440x1080 photo/video recording and dual-band 2.4/5 GHz Wi-Fi.
Product Overview

The Pulsar Symbion LRF DXT50 is a premium multispectral imaging binocular that combines uncooled HD thermal imaging, 4K digital night vision, full-color daytime observation, and an integrated laser rangefinder into a single optic. Built for scanning expansive forests, open fields, and mixed terrain, the Symbion DXT50 delivers rapid target detection and image detail in daylight, darkness, or twilight.

Unrivaled Multispectral Imaging Performance

HD 1280x1024 Thermal Sensor & Wide Field of View

Driven by a flagship 1280x1024 microbolometer sensor with a fine 12 um pixel pitch and a system NETD under 20mK, the Symbion DXT50 captures thermal detail even during heavy fog, rain, or low thermal contrast scenarios. Its fast F50/1.0 objective lens provides a wide 17.5 degree field of view (30.7m at 100m) and a 2,300-meter thermal detection range, making terrain scanning fast and efficient.

Ultra-HD 4K Digital Channel & Integrated 850nm IR

For target identification, the digital channel features a 3840x2160 (4K CMOS) sensor paired with an F50/1.8 objective lens, delivering clear full-color visuals during daytime and detailed digital night vision in dark environments. Supported by a built-in 850nm LED IR illuminator, the digital channel offers a 6.5x to 26x optical-digital zoom range to isolate target details at long distances.

Tactical Precision & All-Weather Ergonomics

Integrated Laser Rangefinder & On-Board Ballistic Solver

Equipped with a built-in 905nm laser rangefinder (Class 1), the Symbion DXT50 accurately measures distance to targets out to 1,500 meters with +/-1 meter precision. Direct compatibility with the Stream Vision Ballistics App allows real-time holdover calculations and trajectory adjustments directly within the viewing interface.

Dual-APS5 Power Architecture & Rugged Build

Housed in a magnesium alloy body rated IP67 waterproof, the binocular operates continuously from -25°C to +50°C. Powered by two external quick-change APS5 rechargeable batteries (4900 mAh capacity), it yields up to 8 hours of continuous operation. Integrated 64GB storage records 1440x1080 videos and photos, while dual-band 2.4/5 GHz Wi-Fi enables live streaming via the Stream Vision 2 App.

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Technical Specifications

While we strive for absolute accuracy, manufacturer specifications and hardware configurations are subject to change without prior notice. For mission-critical applications, we recommend consulting our team to verify current technical data.

Thermal Specifications
Sensor TypeUncooled Microbolometer
Thermal Resolution1280 x 1024
Pixel Pitch12 µm
NETD< 40 mK
Thermal Lens50 mm
Focal Ratio (Aperture)F1.0
Dual FOV SystemNo (Independent fixed fields of view for thermal and digital optical channels)
Field of View17.5x30.7
Magnification2x – 16x | Digital: 6.5x – 26x (with digital zoom up to 8x)
Min. Focusing Distance3 m
Focus ModeRear Objective Focus Ring
Frame Rate50 Hz
Spectral Range8 um to 14 um (Thermal channel)
Detection Range (1.7m Subject)2300 m
Optical & Night Vision
Optical Sensor4K Digital CMOS (3840x2160)
Optical Resolution3840x2160
Optical LensThermal F50/1.0 | Digital F50/1.8
Optical Focal RatioF50/1.0 (Thermal) / F50/1.8 (Digital)
Min. Illumination0.001 lux (Night vision mode)
IR Wavelength850 nm
IR Emitter TypeLED
IR Beam AngleAdjustable (via built-in 850nm LED IR illuminator)
Smart IR TechnologyYes
Night Viewing Range400 m
Visible WavelengthFull-color daytime visible spectrum
Interpupillary RangeAdjustable (62.5 mm – 74 mm)
Precision, Optics & Lasers
LRF Safety ClassClass 1 (according to IEC 60825-1:2014)
LRF Wavelength905 nm
LRF Max Range1500 m m
LRF Min Range10 m
LRF Accuracy± 1 m
Projectile Mass InputSupported via Stream Vision Ballistics App
Initial Velocity InputSupported via Stream Vision Ballistics App
Aerodynamic CoefficientSupported via Stream Vision Ballistics App
Spindrift CalculationYes
Twist Rate InputSupported via Stream Vision Ballistics App
Environmental CalibrationAutomatic, Semi-Automatic, Manual (Flat Field Correction)
Shock ResistanceHigh-durability magnesium alloy housing
System & Display
Display InfoMicroLED (AMOLED) Display, 1920×1080 resolution
Screen BrightnessYes
Screen ContrastYes
Digital ZoomThermal: 1x – 8x | Digital Channel: up to 4x (Total combined zoom up to 26x)
Color Palettes9 Color Display Palettes, White hot, Black hot, Green, Red Hot, Red Monochrome, Rainbow, Ultramarine, Violet, Sepia
Image EnhancementAdvanced Thermal Processing Algorithms, Sensitivity Amplification Levels, Smoothing Filter
Flat Field CorrectionYes (3 Calibration Modes: Automatic, Semi-Automatic, Manual)
Image ModesMultispectral Duo Mode, Thermal Mode, Digital Channel Modes (Day Color, Twilight Color, Night B&W, Night Green)
Eye Pupil5 mm (Exit Pupil Diameter)
Eye Relief13 mm
Diopter Range-5 / +5 D
Display FunctionsDisplay Dimming, Picture-in-Picture (PiP), Auto Display-Off Proximity Sensor, Screen Shape Selection
Storage Capacity64 GB Internal EMMC
Media Capacity64 GB Built-In Storage
Media Format.mp4 (Video), .jpg (Photo)
Recording CapabilitiesVideo and Photo Recording with Audio Capture (1440x1080 resolution)
Built-In MicrophoneYes
Battery Type2x External APS5 Rechargeable Li-Ion Batteries (4900 mAh)
Battery LifeUp to 8 hours continuous runtime
Power Supply3.7 V DC output / External 5V/9V USB Type-C Power Delivery
Power Saving FeaturesAuto Power-Off / Proximity Display-Off Sensor / Power Saving Mode
Power Consumption3.7 V Operating Voltage (Powered by 2x external APS5 rechargeable Li-ion batteries / 5V, 9V USB Type-C Power Delivery)
Battery Indicator HUDYes
Polarity ProtectionYes
Overvoltage ProtectionYes
Connectivity & Software
Wi-Fi HotspotYes (Dual-Band 2.4 GHz / 5 GHz, IEEE 802.11 b/g/n/ac)
BluetoothYes (BLE 4.2)
Video StreamingYes (Real-time video streaming to mobile device)
Video CompressionH.264
USB ConnectivityUSB Type-C (Power delivery and data transfer)
Supported OSiOS, Android
Software & AnalysisStream Vision 2
Multilingual SupportYes
Android AppDownload App
iOS AppDownload App
Physical & Environmental
Protection Level (IP Rating)IP67
Operating Temperature-25°C to +50°C
Storage Temperature-25°C to +50°C
Relative HumidityUp to 95%
Dimensions & Weight207 × 132 × 72.5 mm
Tripod MountingYes (1/4" tripod socket with ARCA-SWISS mount support)
Safety CertificationsCE, UKCA, RoHS, IEC 60825-1:2014 (Class 1 Laser)
EMC CertificationsCE, UKCA, FCC, EN 55032:2015
Other Hardware FeaturesMultispectral Duo Mode, Integrated 1500m Laser Rangefinder, Stream Vision Ballistics Calculator, Haptic Vibro Feedback, Tactile 3-Position Power Switch, Electronic Image Stabilization
What's in the Box
Box Contentsulsar Symbion LRF DXT50 Multispectral Binoculars
2x External APS5 Rechargeable Li-Ion Batteries
APS5 Battery Caps
APS5 Charger & Power Adapter
USB Type-C Cable
Carrying Case
Binoculars Harness & Neck Strap
Optics Cleaning Cloth
Quick Start Guide & Warranty Card
Tripod Adapter (with ARCA-SWISS mount support)