Pulsar MERGER LRF XT50 Thermal Binoculars - 50mm <40mK 1280x1024px 12um
The Pulsar Merger LRF XT50 is about as premium as handheld thermal binoculars get right now—huge 1280×1024 HD thermal sensor, ultra-sensitive <40mK NETD, and a fast 50Hz refresh that delivers a seriously clean, stable image even at distance. The dual-eyepiece design makes long scanning sessions way more comfortable than monoculars, and the built-in image stabilisation helps keep everything steady when you’re tracking movement or zoomed in tight. Add a laser rangefinder, 50mm F1.0 lens, and detection out to roughly 2300m, and it’s basically a full long-range observation system in binocular form.
-Nathan (Technical Advisor)
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The Pulsar Merger LRF XT50 Thermal Binoculars combine cutting-edge thermal imaging with professional ergonomics and portability. Featuring a 1280×1024, 12µm, <40mK NETD HD thermal sensor, a 50mm f1.0 objective lens, and built-in image stabilisation, these binoculars deliver exceptional clarity and stability for long-range observation up to 2300m. Equipped with twin HD AMOLED displays, a 1500m precision laser rangefinder, eight colour palettes, dual rechargeable batteries providing up to 8 hours of operation, and Stream Vision 2 Wi-Fi connectivity, the Merger LRF XT50 is perfect for professional, long-duration, and high-accuracy thermal observation.
- Thermal Sensor 1280×1024, 12µm
- NETD <40 mK
- sNETD <20 mK
- Objective Lens 50mm f1.0
- Magnification 2.0–16.0×
- Detection Range 2300 m
- Field of View (FOV) 17.5°
- Eye Relief 15 mm
- Frame Rate 50 Hz
- Image Stabilisation Built-in
- Display 1280×960 HD AMOLED
- Audio/Video Built-in video recording (with audio) and still image capture
- Video Format .mp4
- Image Format .jpg
- Video/Photo Resolution 1280×960
- Rangefinder Built-in precision laser rangefinder
- Rangefinder Wavelength 905 nm
- Measuring Distance 1500 m
- Measuring Accuracy ±1 m
- Built-in Memory 64 GB
- Wi-Fi 2.4 / 5.0 GHz
- App Connectivity Stream Vision 2
- Body Material Magnesium Alloy
- Level of Protection IPX7 Waterproof
- Battery Life Up to 8 hours
- Power Source Dual rechargeable Li-Ion internal battery & rechargeable APS3 external battery
- Dimensions (HxWxD) 197 × 140 × 72 mm
- Weight 950 g
- Large Format HD Sensor – delivers superb image quality with minimal noise and exceptional long-range detection.
- Built-in Image Stabilisation – reduces motion blur and vibration, providing clear and steady images even at high magnification.
- Comfortably Wide FOV – 17.5° field of view expands observation area for faster scanning and situational awareness.
- Precision Laser Rangefinder – extended 1500m measurement range with ±1m accuracy, offering single-step or continuous scanning.
- Eight Colour Palettes – optimise thermal observation for object detection, recognition, and night-time comfort.
- Comfortable, Ergonomic Design – classic binocular aesthetics with magnesium alloy housing for durability and long-duration observation.
- Twin HD AMOLED Displays – high-resolution 1280×960 screens reduce eye strain and reveal fine thermal detail.
- Dual Rechargeable Batteries – internal Li-Ion + external APS3 battery provide up to 8 hours of observation.
- Built-in Video & Image Recording – capture still images and videos with audio, free from motion blur thanks to stabilisation.
- Stream Vision 2 Connectivity – remote control, real-time viewing, browsing, sharing, and firmware updates via smartphone or tablet.
- IPX7 Waterproof – protects against dust, rain, and temporary immersion in water.
- Wide Operating Temperature Range – reliable performance between -25°C and +50°C.
- Pulsar MERGER LRF XT50 Thermal Binoculars - 50mm <40mK 1280x1024px 12um
- Merger LRF XT50 thermal imaging binoculars
- APS3 battery pack (x2)
- APS battery charger
- Power adaptor
- USB Type-C cable with USB Type-A adaptor
- Carrying case
- Neck strap
- Lens cloth
- Quick start guide
- Warranty card
- Tripod adaptor
1. What resolution does it use?
It uses a high-end 1280×1024 thermal sensor with 12µm pixel pitch for very detailed imaging compared to standard 384 or 640 units.
2. How sensitive is the thermal sensor?
It has a NETD of under 40mK, with system sensitivity even lower (around <20mK effective), helping it pick up small heat differences in difficult conditions.
3. What is the detection range?
It can detect heat signatures out to approximately 2300 metres depending on target size and environmental conditions.
4. Does it have a laser rangefinder?
Yes, it includes a built-in precision laser rangefinder with a range up to about 1500m and ±1m accuracy.
5. What magnification does it offer?
It provides 2–16x magnification, and still retains strong detail across the zoom range thanks to the high-resolution sensor.
6. Why use binocular design instead of monocular?
Binocular viewing reduces eye strain and makes long observation sessions significantly more comfortable and stable for tracking targets over time.
7. Does it have image stabilisation?
Yes, it includes built-in image stabilisation to reduce shake and blur when zoomed in or tracking movement.
8. What display does it use?
It uses dual 1280×960 AMOLED HD displays for sharp, high-contrast viewing with less eye fatigue.
9. How long does the battery last?
Up to around 8 hours using a dual battery system (internal + APS3 external battery).
10. What’s the main advantage of the XT50 over lower Merger models?
The jump to a 1280×1024 sensor gives noticeably better fine detail, especially for identifying partially obscured targets or distant movement, plus stabilisation adds real usability improvements in the field.
- Pulsar 3 year warranty
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