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f Guide Thermal Imaging Rifle Scope TU420
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Guide Thermal Imaging Rifle Scope TU420

The Guide TU420 is a thermal imaging rifle scope with the same design as traditional optical riflescopes. The thermal riflescope has a 400x300 VOx detector (17μm), a 25mm lens and a zoom range of 1.5 to 6.5x. The Guide TU420 can detect a car from as far as 1.7 km and a person from as far as 700 meters. On the riflescope you can easily store 10 different zero profiles.

Properties of the thermal image 

  • 400x300 VOx detector (pixel size 17μm)
  • 50hz refresh rate (real-time image)
  • Projected onto 0.39" OLED display (1024x768)
  • Different color palettes, including White/Black/Red/Green Hot
  • Thermal image does not depend on the weather, you also have image during e.g. fog and rain
  • Detection distance: 1.7km (car) and 700m (person)
  • Field of view: 15,5 x 11,6 degrees

Properties of the reticle

  • Choice of 10 different reticles
  • Reticle available in 6 different colors and 10 levels of brightness
  • Reticle magnifies with the zoom, similar to First Focal Plane of optical rifle scopes
  • Save 10 zero profiles to use the rifle scope directly on different weapons without having to shoot again
  • Zero calibration distances: 50 / 100 / 200 / 300 / 500m
  • Easy manual elevation / width adjustment on the body

Attaching the scope to your weapon

  • Universal 30mm tube
  • With the help of 30mm mounting rings easy to use on many weapons
  • Mountings can be found under "optional accessories" or via this link
  • For Weaver/Picatinny, Dovetail (air gun) etc. 

Useful functions

  • Hot Track function, where animals / people with cursor are directly "pointed" at
  • Stadiametric range finder (calculates the approximate distance to an animal or person)
  • Picture-in-Picture mode to further magnify a small part of the image
  • Wi-fi and Bluetooth to share and view recordings
  • When a smartphone/tablet is connected to the scope, someone else can enjoy everything that you see
  • Free app (iOS and Android)

User convenience

  • Shock resistance: 500G/1ms
  • IP67 certified: waterproof, dustproof and shockproof
  • Ultra-long operating time of up to 10 hours using only one 18650 battery (charger + battery included)
  • Weighs only 930 grams
  • USB-C connection (cable included)
  • Certifications: RoHS, CE, FCC, EAC, UN38.3 (battery certificate)

Application Guide TU420

This thermal rifle scope is made for shooting at both short and medium distances. The most popular applications are hunting and tactical use. The advantage of thermal imaging is that you will always have an image no matter what the weather conditions are. With thermal imaging, animals can never hide. Because of their body heat, they will immediately light up on the display of your rifle scope. Even when they are behind bushes that you cannot see through with your own eye. The Guide TU420 is suitable for use at night, in twilight and also just during the day. Because you can store 10 zero profiles you can easily switch between various weapons.

Guide's TU series consists of three models. This Guide TU420 gives you the largest field of view in the series. Check out the overview below to see what differences there are between the models. Do you have any questions? Then of course you can contact us.

  Guide TU420
Guide TU430 Guide TU450
Diameter of the lens 25mm 35mm 50mm
Optical magnification 1,6x 2,3x 3,2x
Max. total zoom 6,4x 9,2x 12,8x
Max. detection (vehicle) 1.700 m 2.400 m 3.000 m
Max. detection (human) 700 m 1.000 m 1.400 m
Field of view (degrees) 15,5 x 11,6 11,1 x 8,3 7,8 x 5,8
Weight 930 grams 940 grams 950 grams



  • 1x Thermal Scope (25mm lens)
  • 1x Lens protection
  • 1x Eyepiece cap
  • 1x Storage pouch
  • 1x USB-C cable
  • 1x Micro-HDMI cable
  • 1x 186500 battery
  • 1x Battery charger
  • 1x Lens cloth
  • 1x User manual

This item is supplied on demand. Contact us for the delivery time.
Contact us for the delivery time.

Price incl. VAT: € 2.699,00

Item Number:Help503135
Detector type:Help400x300 TEC metal encapsulated (17 micron)
Display quality:Help1024x768 OLED (full-color)
Refresh rate:Help50 Hz
Lens diameter:Help25mm
Type of image focus:HelpManual focus
Field of view:Help15,5 x 11,6 degrees
Detection distance:HelpShort-range (max. 500m), Medium-range (max. 1.000m)
Application:HelpAirsoft / Paintball, Hunting, MIL-SIM, Tactical
Features:HelpHot Track, Picture-in-Picture, Rangefinder (stadiametric), Wi-fi, Bluetooth
Color palettes:HelpWhite hot, Black hot, Red hot, Green hot, Blue hot, Target highlight
Usage time:HelpUp to 10 hours
Recording Functionality:HelpPhoto, Video
Reticles:HelpYes (different types and colors)
Digital zoom:Help1x / 2x / 3x / 4x
Other functionalities:HelpAdjustable contrast, Adjustable brightness
Weight:Help930 grams
Dimensions:Help367 x 107 x 69mm
Mounts included?:HelpNo: mounting ring 30mm optionally available
Power supply:Help1x 18650 battery (battery + charger included)
Working Temperature:Help-30 to +50 degrees Celsius
Water and impact resistance:HelpIP67 (shock-resistant, submersible)
Warranty:Help2 years