Guide TU431 Gen2 LRF Thermal Scope 35mm


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Guide TU431 Thermal Rifle Scope

The TU Gen2 Series thermal scope is equipped with a high-sensitivity thermal sensor of 12µm and a 1440×1080 HD AMOLED display. Paired with the robust PureIR image algorithm, it provides users with a more vivid and detailed visual experience.

With the laser rangefinder seamlessly integrated into a slim-design scope, the TU Gen2 LRF Series thermal rifle scope enables precise detection of targets at distances of up to 1,500 meters, empowering hunters with a reliable perception of distance at the hunting site to make accurate shots. The TU Gen2 Series 35mm thermal scope has undergone meticulous optimization in its detailed design, elevating user-friendly operation. Furthermore, the battery life has seen a substantial extension, resulting in a 20% increase in duration.

High Definition Thermal Sensor

High-quality thermal imaging with 400×300@12µm resolution with clear distinctions allows for improved recognition of animals, their body parts, and even minute elements such as branches, leaves, grass, and the landscape.

1440×1080 AMOLED Display

The heat signature captured by the thermal image can be shown on the display using the picture-in-picture (PIP) feature, significantly enhancing the comfort of observation.

PureIR Adaptive Dynamic Filtering Algorithm (PureIR)

The PureIR combining 3DNR and PureIR adaptive filtering algorithms delivers high-sensitivity thermal images, reducing image distortion and enriching detail even for distant targets.

Fast Detection 1000m LRF

The compact ranging module, which has been recently created, offers accurate and rapid detection, allowing you to identify targets at distances of up to 1500 meters during nighttime hunting, thus enhancing your hunting efficiency.

Infrared detector

• Detector type: Uncooled VOx Infrared

• Detector resolution and pitch: 400 × 300, 12 µm

• Spectral range: 8 to 14 µm

• NETD: =30 mk

• Frame rate: 50 Hz


• Focal length: 35 mm; F1.0

• Focus: Manual

• Field of View: 7.8° × 5.9°

• Optical zoom: 2.65x

• Digital zoom: 1x ~ 4x 


• Display type: 0.39" AMOLED

• Resolution: 1440 x 1080

• Eyepiece: Exit pupil distance= 48mm; Diopter: +/- 4 to; Zoom: 14x

• Video output: Digital video


• Battery type: Single Replaceable 18650 battery

• Battery life: = 12 hours


• USB: Type C

• Video Interface: Micro HDMI

• Tube Diameter: 30mm

• Memory Capacity: 128 gb

• Language Settings: English / Russian / German / French / Italian / Spanish / Japanese / Korean / Polish

Range Performance

• Detection range: 1000 m

Laser rangefinder   

• Max. measuring range: 1000m


• Scene modes: Enhanced, Highlight and Natural

• Color palettes: Black Hot, White Hot, Red Hot, Iron Hot, Blue Hot

• PIP: Available

• Hot spot tracking: Available

• WIFI: 2.4 G

• Supported Application: TargetIR

• Firmware OTA: Upgrade device firmware via app connection


• Operating temperature range: -30°C to 50°C

• Storage temperature range: -40°C to 70°C

• Humidity: 10 % to 95 % non-condensing

• Shock: 800 G at 1 ms half-sine pulse

• Encapsulation: IP67

• Certification: FCC, CE, RoHS, EAC, un38.3


• Weight: = 1250 g

• Dimensions: 377 × 107 × 99 mm

Included in box...

• Device

• Lens cap

• Eye masks

• 5V2A adapter (US, Britain, Australia and Europe)

• Desktop charger

• Customized battery ×2

• Extended clip ×2

• USB Type-C cable

• Micro HDMI cable

• Quick start guide

Gun City is NZ's largest firearms dealer. We have been selling, importing, exporting, manufacturing, customising and repairing firearms & accessories since 1978. We have the largest range of guns, ammo, thermal riflescopes & accessories available now, online in New Zealand. 

Please call our shop for more information on +64 3 379-8888 in Christchurch, New Zealand.