GUIDE THERMAL RIFLESCOPE TU635S APEX VISION 640X512
Guide TU635S thermal riflescope from the APEX VISION range: a 15 mK 640×512 sensor behind a 35 mm F0.9 objective lens, for a wide field of view (11.8°) and more detail when zooming in. It weighs 745 g and detects up to 1800 m.
The Guide TU635S thermal riflescope puts the 640×512 pixel sensor of the APEX VISION range into a compact 35 mm body: it is the TU 3.0 series choice for those who want a wide field of view and a detailed image at short and medium distances. At 745 g and 374 mm long, it keeps the scope light on the rifle for night hunting.
Features
- 640×512 sensor at 12 μm, 15 mK NETD: the VOx detector of the ApexVision S1 architecture has 2.7 times as many pixels as the 400×300 of the TU435S. When using the digital zoom, the outline and coat of the animal stay sharper.
- Wide field of view: 11.8° × 7.1° with the 35 mm F0.9 objective lens, that is 21 × 12 m at 100 m. It makes it easier to find and follow a moving animal.
- 2.8x to 22.4x magnification: the lowest starting magnification in the TU 3.0 series, useful for scanning the ground, with headroom to zoom in up to 22.4x.
- 0.49-inch Full HD AMOLED display: 1920×1080, eyepiece with 48 mm eye relief, −5 to +5 dioptre adjustment and seven colour palettes.
- Continuous shutterless imaging: the 3.0 architecture avoids calibration pauses and the click during observation; the shutter is reserved for start-up and sudden temperature changes.
- Hyper-Light 2.0 algorithm: according to the manufacturer, it improves sharpness, reduces noise and optimises the contrast of fine details.
- Recording and app: 128 GB for photo and video with sound, recoil-activated recording (15 s video and 5 photos per shot), 2.4/5 GHz Wi-Fi and Bluetooth for the TargetIR app, with OTA firmware and ballistic calculation.
- Battery life and ruggedness: built-in 18500 battery plus an external, hot-swappable 18650, up to 8 hours; IP68, 6000 J impact resistance, −20 °C to 50 °C.
Why choose this model?
The TU635S is for those who put the field of view first. The 35 mm objective lens with the 640×512 sensor gives the widest field and the lowest starting magnification in the TU 3.0 series, which helps in enclosed terrain, along woodland edges and at short and medium distances.
Compared with the TU435S, it gains resolution for only 7 g more. Compared with the TU650S, it is 176 g lighter and 47 mm shorter, but has a 0.49-inch display and 8 hours of battery life instead of 14.
Technical specifications
| Specification | Value |
|---|---|
| Brand | Guide (Guide Sensmart) |
| Range / series | APEX VISION / TU 3.0 |
| Manufacturer reference | TU635S |
| Detector | Uncooled VOx, 8 to 14 μm |
| Resolution | 640×512 pixels, 12 μm |
| NETD | 15 mK |
| Refresh rate | 50 Hz |
| Objective lens | 35 mm, F0.9 |
| Field of view | 11.8° × 7.1° (21 × 12 m at 100 m) |
| Magnification | 2.8x to 22.4x |
| Detection range | 1800 m (1950 yards) |
| Focus | Manual |
| Display | AMOLED 0.49 inch, 1920×1080 |
| Eyepiece | Eye relief 48 mm; dioptre −5 to +5; magnification 14x |
| Colour palettes | White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia |
| Connectivity | Wi-Fi 2.4/5 GHz, Bluetooth, USB-C, microphone |
| Tube diameter | 30 mm |
| Memory | 128 GB |
| Battery | 1 × built-in 18500 + 1 × external 18650 |
| Battery life | Up to 8 hours |
| Operating temperature | −20 °C to 50 °C |
| Impact resistance | 6000 J |
| Protection | IP68 |
| Weight | 745 g |
| Dimensions | 374 × 89 × 76 mm |
In the box
- Guide TU635S riflescope
- Rubber eyecup
- Quick-release mount for the scope
- Carry pouch
- Lint-free cleaning cloth
- Battery charger and 2 × 18650 batteries
- 5 V 2 A adapter (US, UK, Australian and European plugs)
- USB-A to USB-C cable
- Quick start guide
How to choose
The focal length decides the trade-off between field and range. With 35 mm, the TU635S sees more ground at once; with 50 mm, the TU650S brings the image closer and reaches 2600 m of detection, but the field narrows to 8.8° × 7.0°. Between the TU635S and the TU435S, which share lens and body, the choice is resolution. If you want to measure distances and a 2560×2560 display, the rangefinder sibling is the TU635LS.
Frequently asked questions
What is the difference between the Guide TU635S and the TU435S?
The sensor: 640×512 on the TU635S and 400×300 on the TU435S. The 35 mm lens, display, battery and body are the same; the TU635S weighs 745 g and the TU435S 738 g.
Is the TU635S suitable for long distances?
The manufacturer states 1800 m of detection. For observing and identifying further away, the 50 mm objective lens of the TU650S is better suited.
How long does the battery last?
Up to 8 hours, with the built-in 18500 battery and an external 18650. The 18650 can be swapped without switching the scope off; two come in the box.
Does the scope connect to a phone?
Yes, via 2.4 or 5 GHz Wi-Fi to the TargetIR app, which updates the firmware and handles ballistic calculation.
