Thermal binoculars have changed the way serious hunters and property managers operate at night. Instead of scanning with a monocular in one hand and a rifle in the other, a quality thermal bino lets you observe, identify, and plan your approach with both eyes — reducing fatigue and dramatically improving situational awareness. Two of the most talked-about options right now are the Pulsar Symbion and the Pulsar Merger. Both are excellent units, but they're built for different hunters. Here's how they stack up.
Pulsar Symbion – Overview
The Pulsar Symbion is Pulsar's latest-generation thermal binocular, built around a high-resolution sensor and designed for hunters who want the best possible image quality in a binocular form factor. It's a purpose-built observation tool — not a clip-on, not a monocular — and it shows in the ergonomics and optical experience.
Key Specs
- Sensor: 640×480, 12µm pixel pitch
- Objective lens: 35mm (LRF models available)
- Base magnification: 2.5x (up to 20x digital zoom)
- Detection range: Up to 1,800m
- Display: Dual AMOLED eyepieces for true binocular viewing
- Battery life: Up to 9 hours
- Recording: Built-in video recording + Stream Vision 2 app
- Weight: Approx. 700g
What Makes the Symbion Stand Out
The Symbion's dual AMOLED eyepiece design gives you a genuinely comfortable binocular viewing experience — both eyes open, natural field of view, and significantly less fatigue on long scanning sessions compared to a monocular. The 640-sensor delivers exceptional image clarity, and the 12µm pixel pitch means you're getting more detail at distance than older 17µm sensor units.
For hunters covering large areas of open country — scanning paddocks, creek lines, and scrub edges from a vehicle or elevated position — the Symbion is a serious upgrade in comfort and capability.
Pulsar Merger – Overview
The Pulsar Merger was Pulsar's first dedicated thermal binocular and quickly became a benchmark in the category. Available in LRF (laser rangefinder) variants, the Merger is a well-rounded, field-proven unit that has earned a strong reputation among Australian hunters and property managers.
Key Specs (Merger LRF XP50)
- Sensor: 640×480, 17µm pixel pitch
- Objective lens: 50mm
- Base magnification: 2.5x (up to 20x digital zoom)
- Detection range: Up to 1,800m
- Display: Dual AMOLED eyepieces
- Battery life: Up to 8 hours
- LRF range: Up to 1,000m (LRF models)
- Recording: Built-in video recording + Stream Vision 2 app
- Weight: Approx. 900g
What Makes the Merger Stand Out
The Merger's 50mm objective lens gives it a light-gathering advantage in challenging conditions, and the larger lens diameter contributes to a wider field of view at base magnification. The LRF variant adds integrated laser rangefinding — a genuinely useful feature when you're trying to call distance on animals in open country without breaking your observation.
The Merger is also a more established platform with a proven track record in Australian conditions. If you're buying second-hand or want a unit with a strong support network, the Merger has the edge simply through time in the market.
Head-to-Head Comparison
| Feature | Pulsar Symbion | Pulsar Merger LRF XP50 |
|---|---|---|
| Sensor resolution | 640×480 | 640×480 |
| Pixel pitch | 12µm | 17µm |
| Objective lens | 35mm | 50mm |
| Detection range | Up to 1,800m | Up to 1,800m |
| Base magnification | 2.5x | 2.5x |
| Laser rangefinder | Optional (LRF model) | Yes (LRF model) |
| Battery life | ~9 hours | ~8 hours |
| Weight | ~700g | ~900g |
| Image detail at distance | ★★★★★ (12µm advantage) | ★★★★ |
| Low-light performance | ★★★★ | ★★★★★ (50mm lens advantage) |
| Portability | ★★★★★ | ★★★★ |
Which One Should You Choose?
Choose the Pulsar Symbion if…
- You prioritise image detail and resolution over raw lens size
- You're doing a lot of walking or stalking and want a lighter, more packable unit
- You want the latest sensor technology from Pulsar
- You're scanning at moderate ranges (under 1,000m) where the 12µm sensor really shines
Choose the Pulsar Merger if…
- You're scanning large open areas where the 50mm lens gives a wider, brighter image
- You want an integrated laser rangefinder for calling distance on animals
- You're operating from a vehicle or fixed position where the extra weight isn't a factor
- You want a proven, field-tested platform with strong resale value
Pair Your Thermal Bino With the Right Training
A thermal binocular is only as effective as the hunter using it. Knowing how to read heat signatures, identify species at distance, and coordinate between a spotter and shooter takes practice. Our Thermal Scope Basic Training and Advanced Thermal Training sessions cover exactly this — and the skills transfer directly to binocular-based spotting setups.
Interested in the Symbion or Merger?
Both units are exceptional thermal binoculars and either will transform your night hunting capability. If you'd like to discuss which one suits your property, hunting style, or budget, get in touch with us — we're happy to talk through the options and help you make the right call.