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Description
Manufacturer warranty information
The Pulsar Merger Duo Multispectral Binoculars are designed for professionals conducting nocturnal field surveys. By combining high-performance thermal imaging and digital night vision in a single device, they offer versatility and reliability in challenging conditions. With an integrated recording function, they are well suited for nocturnal monitoring and identification tasks.
The binoculars feature a <25 mK NETD thermal sensor (640 × 480 resolution) and a 1200p digital CMOS night vision sensor. Users can switch between - or view simultaneously -thermal and digital imaging channels. This dual-channel design supports enhanced detection, recognition, and identification in complex, low-light environments.
Picture-in-Picture mode enables concurrent display of both streams, allowing thermal tracking while maintaining visual context through digital optics. Advanced contrast processing further refines image clarity by distinguishing background elements such as foliage, sky, and water, and enhancing colour in twilight conditions.
The ergonomic design and dual HD AMOLED displays reduce eye fatigue during prolonged observation. Powered by a dual-battery system (internal 4,000 mAh and replaceable 3,200 mAh), the binoculars offer up to 10 hours of operation. A proximity sensor conserves energy by switching to standby mode when not in use.
Compared to standard thermal devices with average run times of 4–6 hours, the Merger Duo delivers extended performance in rugged field conditions. Its IPX7 rating and magnesium alloy housing provide resilience against harsh weather and terrain.
Specifications
| Feature | Specification |
|---|---|
| Thermal Sensor | Uncooled microbolometric, 640 × 480 @ 17 µm |
| Digital Sensor | Full-HD CMOS, 1920 × 1200 |
| NETD (thermal / system) | <25 mK / <18 mK |
| Objective Lens (thermal / digital) | F50/1.0 / F50/1.4 |
| Magnification (thermal / digital) | 3–24× / 2–16× |
| Field of View @100 m (thermal / digital) | 21.8 m / 30.7 m |
| Field of View (degrees) | 12.4° (thermal), 17.5° (digital) |
| Detection Range | Up to 1800 m |
| Diopter Adjustment | –4 to +3 D |
| Eye Relief | 12 mm |
| Display Type | Dual AMOLED HD |
| Display Resolution | 1280 × 960 pixels |
| Video / Photo Format | .mp4 / .jpg |
| Built-in Memory | 64 GB |
| Infrared Illuminator | 940 nm LED, 500 mW, beam adjustable |
| Wi-Fi Protocol | IEEE 802.11 b/g/n/ac (WPA), 2.4/5 GHz |
| Body Material | Magnesium alloy |
| Dimensions (mm) | 207 × 140 × 73 |
| Weight (including batteries) | 1.2 kg |
| Waterproof Rating | IPX7 |
| Operating Temperature | –25°C to +50°C |
| Battery System | 4,000 mAh built-in + 3,200 mAh replaceable |
| Battery Life | Up to 10 hours (7.5 h typical) |
Features
- Thermal and digital night vision can be viewed independently or in combination for improved detection and context.
- Picture-in-Picture mode enables concurrent monitoring of thermal heat signatures and visible details without switching views.
- Detects subjects at up to 1,800 m, supporting observation across large or open landscapes.
- Binocular format and dual AMOLED displays minimise eye fatigue during extended field use.
- Dual battery system provides up to 10 hours of operation, with standby functionality to conserve energy.
- 940 nm IR illuminator enhances low-light digital performance without disturbing wildlife.
- Magnesium alloy body and IPX7 waterproofing support reliable use in challenging environments.
Additional Information
The Merger Duo is especially suited to survey conditions requiring multispectral imaging, such as the presence or behaviour of nocturnal or crepuscular species. Its combined viewing modes offer enhanced certainty when species identification is critical.
The Pulsar Merger Duo Multispectral Binoculars align well with the Thermal Imaging: Bat Survey Guidelines (BCT, 2021) in several key areas. The guidelines recommend devices with a thermal resolution of at least 640 × 480 and a NETD of ≤50 mK for effective bat detection - both of which the Merger Duo meets or exceeds with its <25 mK NETD and 640 × 480 thermal sensor. Its dual-channel functionality (thermal and digital night vision), Picture-in-Picture mode, and high detection range (up to 1,800 m) offer flexibility and precision in nocturnal survey work. The inclusion of a 940 nm IR illuminator ensures covert operation without disturbing bats, in line with BCT’s emphasis on non-intrusive methods. Moreover, its ability to record and store footage meets the guidelines' recommendations for documentation and review, supporting robust ecological reporting and licence submissions.
In practical terms, the Merger Duo is capable of detecting small bats such as pipistrelles at distances of approximately 30–50 metres, depending on ambient conditions and background contrast. Overall, it exceeds the minimum technical specifications set out by BCT and is well suited to professional bat survey applications.
Please see the Thermal Imaging: Bat Survey Guidelines published by the Bat Conservation Trust for more advice on how to choose your thermal imaging equipment for bat surveys.