Thermal Scopes
The PIXFRA Ranger is a handheld thermal monocular range designed for outdoor observation and wildlife spotting. Compare all five models by thermal sensor resolution, lens, magnification, field of view and manufacturer-stated detection distance to find the best fit for your typical viewing conditions.
| Model | Thermal sensor | Lens / aperture | Optical magnification | Field of view at 100 m | Detection range* | Close-focus distance | Battery life (listed) |
|---|---|---|---|---|---|---|---|
| PFI-R425 | 384 × 288 | 25 mm / F1.0 | 2.34× | 18.4 × 13.8 m | 1,300 m | 0.5 m | ≥7.5 h |
| PFI-R435 | 384 × 288 | 35 mm / F1.0 | 3.27× | 13.2 × 9.9 m | 1,800 m | 2 m | ≥7.5 h |
| PFI-R625 | 640 × 512 | 25 mm / F1.0 | 1.46× | 30.7 × 24.6 m | 1,300 m | 0.5 m | ≥6.5 h |
| PFI-R635 | 640 × 512 | 35 mm / F1.0 | 2.05× | 21.9 × 17.6 m | 1,800 m | 2 m | ≥6.5 h |
| PFI-R650 | 640 × 512 | 50 mm / F1.0 | 2.92× | 15.4 × 12.3 m | 2,600 m | 1.5 m | ≥6.5 h |
*Detection distances are manufacturer-stated estimates, not guaranteed recognition or identification distances. Real-world performance varies with target size, weather, terrain and viewing conditions. Specifications may change; confirm the exact model and local availability before ordering.
The 25 mm lens and 384 × 288 sensor offer a practical option for general observation, with a close-focus distance listed at 0.5 m.
The 35 mm lens provides higher optical magnification and a narrower view than the R425, with a longer stated detection distance.
The 640 × 512 sensor with a 25 mm lens provides the widest field of view in the Ranger lineup, useful for scanning larger areas.
The 640 × 512 sensor and 35 mm lens balance higher resolution with increased magnification for more distant observation.
The 50 mm lens offers the longest manufacturer-stated detection distance in the series, with a narrower field of view than the 25 mm models.
All five models use 12 μm pixels, a 50 Hz thermal detector and stated NETD sensitivity of ≤30 mK at F1.0. Common features include a 0.41-inch 1440 × 1080 OLED display, 1×/2×/4×/8× digital zoom, six colour palettes, hot/cold-spot tracking, Wi-Fi, built-in 32 GB storage, USB Type-C connectivity and IP67 protection. Battery life is listed at ≥7.5 hours for the R425/R435 and ≥6.5 hours for the R625/R635/R650 under manufacturer test conditions.
Tell us what you plan to observe and the approximate distances involved. We can help narrow the options and confirm current South African availability and accessories.
REQUEST A RANGER QUOTE VIEW PRODUCT CATALOGUEManufacturer reference: PIXFRA Ranger Series official specifications.