Description
Pulsar built the Symbion LRF DXT50 to do the work of three devices at once. It pairs a high-resolution 1280×1024 thermal sensor with a 4K digital day and night channel, so you can detect a heat signature across a field, then flip over to the full-color digital view to actually identify what's standing there. Toss in a built-in laser rangefinder and you've got detection, identification, and ranging all living in one housing.
The thermal side runs a 12 micron pixel pitch with a system NETD under 20mK, which is the number that matters when you're trying to pull a soft heat signature out of fog, rain, or low-contrast conditions. A fast 50mm F/1.0 germanium objective feeds that sensor, and the thermal detection range reaches roughly 2,300 meters on a man-sized target. The wide 17.5 degree field of view is the real story on the DXT50 though, covering about 30.7 meters at 100 meters, which makes scanning brush and timber a whole lot quicker than squinting through a narrow optic.
What Sets the Symbion DXT50 Apart
The 2-16x thermal magnification keeps the base power low enough for fast, wide scanning without overzooming, while the digital channel steps up to a 4K CMOS sensor with 6.5-26x magnification and an 850nm IR illuminator for true darkness. The DUO Picture-in-Picture mode runs both channels at once, dropping your secondary feed into a window so you never lose the main view. Everything shows up on a crisp 1920×1080 AMOLED display.
Living With the DXT50 in the Field
The magnesium alloy body is IP67-rated against water and dust and shrugs off temperatures from -25C to +50C. Electronic image stabilization steadies the picture, and the built-in recorder captures photo and video with audio to 64GB of onboard memory. Wi-Fi and the Stream Vision 2 app handle streaming, file transfers, and firmware updates. The integrated rangefinder reaches out to 1,500 meters with accuracy around one meter, and the quick-change APS5 battery system gives you up to eight hours of runtime with a spare ready to swap. For hunters and guides who want one tool that works around the clock, this one earns its keep.
Key Specifications
- Manufacturer: Pulsar
- Model: Symbion LRF DXT50
- Manufacturer Part Number: PL77456
- UPC: 840284903044
- Thermal Sensor: 1280×1024 uncooled microbolometer, 12µm
- System NETD: Under 20mK
- Digital Sensor: 4K CMOS, 3840×2160
- Thermal Objective: 50mm F/1.0
- Thermal Magnification: 2-16x
- Digital Magnification: 6.5-26x
- Thermal Field of View: 17.5 degrees (30.7m at 100m)
- Thermal Detection Range: Approx. 2,300m
- Laser Rangefinder: Up to 1,500m, accuracy ±1m
- Display: AMOLED 1920×1080
- Frame Rate: 50 Hz
- Internal Memory: 64GB
- Battery: 2x APS5 quick-change, up to 8 hours
- Housing / Rating: Magnesium alloy, IP67
- Color: Black
What’s Included
- Pulsar Symbion LRF DXT50 multispectral binoculars
- APS5 rechargeable battery (2 pcs.)
- APS5 battery caps (2 pcs.)
- APS5 charger
- Power adapter
- USB Type-C cable with Type-A adapter
- Carrying case
- Binoculars harness
- Neck strap
- Optics cleaning cloth
- Tripod adapter
- Quick start guide
Frequently Asked Questions
What does multispectral mean on the Symbion LRF DXT50?
It means the DXT50 carries two separate imaging channels in one housing. You detect heat with the thermal channel, then switch to the 4K digital day and night channel to confirm what you're looking at. The DUO Picture-in-Picture mode even lets you run both feeds at once so you don't lose your main view.
How far can the Symbion DXT50 detect and range targets?
The thermal channel detects a heat source out to roughly 2,300 meters, which is past 2,500 yards on a man-sized target. The built-in laser rangefinder measures distances up to 1,500 meters with accuracy around one meter. That combination lets you spot something far off and get a precise distance on it in the same look.
How is the DXT50 different from the DXR50?
The DXT50 uses a higher-resolution 1280×1024 thermal sensor and a wider 17.5 degree field of view, so it shows more ground with more detail and runs 2-16x magnification. The DXR50 uses a 640×480 sensor with 4-32x reach and a longer 10-hour runtime. The DXT50 is the pick for detail and wide-area scanning in forest and mixed terrain.
How long does the battery last and can I run it on external power?
The Symbion DXT50 ships with two quick-change APS5 batteries and delivers up to eight hours of runtime, depending on temperature. When one runs low you can swap in the spare in seconds. It also accepts external power through the USB-C port, so a power bank keeps you going on long sits.





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