The Guide TU635S Thermal Scope is built for long-range performance, combining a 640×512@12µm thermal sensor with NETD sensitivity of 15mK for clear, detailed imagery in darkness, fog and other challenging conditions.

Equipped with a 35mm objective lens, 2.8×–22.4× magnification and a detection range of up to 1,800 metres, the TU635S is suited to medium to long-range hunting and spotting. Guide’s advanced APEXVISION image-processing system further improves image clarity, motion smoothness and long-range detail.

A shutterless design delivers smooth, uninterrupted viewing free of image freezing, while its 0.49-inch AMOLED display and 60mm eye relief provide sharp, comfortable viewing during extended use. The scope runs on two built-in 18650 batteries plus a removable 18650 cell for up to 8 hours of operation, with USB-C charging and wireless hotspot connectivity for use with compatible mobile devices.

Rugged Construction: IP68-rated protection against dust and water.

Mounting: Includes a Quick Release Scope Mount, torque rated at <2.5N·m / 22.13 in-lbs.

Specifications

Sensor

Type: Uncooled VOx infrared detector, 8–14µm
Resolution: 640 × 512 @ 12µm
NETD: 15mK
Frame Rate: 50Hz

Lens

Objective Lens: 35mm
Field of View at 100m: 21m × 12m
Magnification: 2.8×–22.4×
Detection Range: Up to 1,800m

Display

Display Type: 0.49-inch AMOLED
Display Resolution: 1920 × 1080
Eye Relief: 60mm
Colour Palettes: White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia

Eyepiece

Diopter Adjustment: -5 to +5

Mount

Included Mount: Quick Release Scope Mount
Mount Torque Rating: <2.5N·m / 22.13 in-lbs

Hardware Interface

Interface: USB Type-C (Charge/USB2.0)
Wireless: Wi-Fi hotspot

System Features

Recording: Video capture, with audio
Image Processing: APEXVISION

Power and Battery

Battery Type: 18650×2 built-in batteries plus 18650×1 removable battery
Operating Time: Up to 8 hours
Charging: USB-C

Environmental and Durability

Operating Temperature: -20°C to 50°C
Protection Rating: IP68

Physical Dimensions

Weight: 745g
Dimensions: 374 × 89 × 76mm