{"product_id":"guide-tu435s-thermal-scope","title":"Guide TU435S Thermal Scope","description":"\u003cp\u003eThe \u003cstrong\u003eGuide TU435S Thermal Scope\u003c\/strong\u003e is designed for medium- to long-range thermal observation, combining a high-sensitivity 400×300 thermal detector with a 35mm objective lens and Guide's latest ApexVision S1 image processing technology.\u003c\/p\u003e\u003cp\u003eFeaturing a \u003cstrong\u003e400×300 12μm thermal sensor\u003c\/strong\u003e with \u003cstrong\u003e15mK NETD thermal sensitivity\u003c\/strong\u003e, the TU435S provides detailed thermal imagery across challenging environmental conditions. Its \u003cstrong\u003e35mm objective lens\u003c\/strong\u003e delivers a detection range of up to \u003cstrong\u003e1800 metres\u003c\/strong\u003e, making it well suited to users who prioritise longer-range observation.\u003c\/p\u003e\u003cp\u003eGuide's \u003cstrong\u003eApexVision S1 image processing architecture\u003c\/strong\u003e and Hyper-Light algorithm work together to improve image clarity, contrast and definition, while \u003cstrong\u003eShutterless 3.0 technology\u003c\/strong\u003e helps maintain smooth, uninterrupted viewing during use.\u003c\/p\u003e\u003cp\u003eWith a high-resolution \u003cstrong\u003e1920×1080 AMOLED display\u003c\/strong\u003e, \u003cstrong\u003e4.4×–17.6× magnification\u003c\/strong\u003e, up to \u003cstrong\u003e8 hours of battery operation\u003c\/strong\u003e, Wi-Fi connectivity and an IP68 protection rating, the TU435S offers a robust thermal optic for demanding field conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIncludes quick-release scope mount.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eApexVision S1 Image Processing\u003c\/h2\u003e\u003cp\u003eThe TU435S features \u003cstrong\u003eGuide's ApexVision S1 image processing architecture\u003c\/strong\u003e, designed to enhance thermal image clarity, detail and overall viewing performance.\u003c\/p\u003e\u003cp\u003eAdvanced processing works alongside the thermal detector to improve image definition and contrast, helping users distinguish heat signatures and surrounding terrain across changing conditions.\u003c\/p\u003e\u003cp\u003eThis is particularly useful during longer-range observation where retaining image detail becomes increasingly important.\u003c\/p\u003e\u003ch2\u003e400×300 12μm Thermal Sensor\u003c\/h2\u003e\u003cp\u003eAt the heart of the Guide TU435S is a \u003cstrong\u003e400×300 thermal detector with a 12μm pixel pitch\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eWith \u003cstrong\u003e15mK NETD thermal sensitivity\u003c\/strong\u003e, the sensor is capable of detecting subtle temperature differences within a scene, helping maintain useful thermal detail in low-contrast and challenging environmental conditions.\u003c\/p\u003e\u003cp\u003eA \u003cstrong\u003e50Hz frame rate\u003c\/strong\u003e provides smooth imagery while scanning or observing moving subjects.\u003c\/p\u003e\u003ch2\u003e35mm Lens \u0026amp; 1800m Detection Range\u003c\/h2\u003e\u003cp\u003eThe TU435S features a \u003cstrong\u003e35mm objective lens\u003c\/strong\u003e, giving it stronger longer-range performance than shorter focal-length models in the TU range.\u003c\/p\u003e\u003cp\u003eThe optical system provides a stated \u003cstrong\u003edetection range of up to 1800 metres\u003c\/strong\u003e, making the scope particularly well suited to observing across large properties and open terrain.\u003c\/p\u003e\u003cp\u003eIts \u003cstrong\u003e4.4× base magnification\u003c\/strong\u003e provides a closer initial view of distant subjects, with magnification extending up to \u003cstrong\u003e17.6×\u003c\/strong\u003e when additional detail is required.\u003c\/p\u003e\u003ch2\u003eMedium- to Long-Range Observation\u003c\/h2\u003e\u003cp\u003eWith its 35mm lens and higher base magnification, the TU435S is designed to favour longer-distance observation while still retaining a practical field of view.\u003c\/p\u003e\u003cp\u003eIts field of view measures approximately \u003cstrong\u003e7.4° × 4.4°, or 13 × 8 metres at 100 metres\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThis makes it particularly suitable for users who prioritise detail and detection at distance rather than an extremely wide scanning view.\u003c\/p\u003e\u003ch2\u003eHyper-Light Image Processing\u003c\/h2\u003e\u003cp\u003eGuide's \u003cstrong\u003eHyper-Light algorithm\u003c\/strong\u003e is designed to enhance image contrast, reduce unwanted noise and improve finer thermal detail.\u003c\/p\u003e\u003cp\u003eWorking alongside ApexVision S1 and the high-sensitivity detector, the processing system helps produce a clearer and more defined image across varying field conditions.\u003c\/p\u003e\u003ch2\u003eShutterless 3.0 Technology\u003c\/h2\u003e\u003cp\u003eThe TU435S incorporates \u003cstrong\u003eGuide Shutterless 3.0 technology\u003c\/strong\u003e, designed to reduce the image freezing and audible clicking associated with traditional thermal calibration cycles.\u003c\/p\u003e\u003cp\u003eThis provides smoother, more continuous viewing during normal operation.\u003c\/p\u003e\u003cp\u003eA shutter module is still retained for startup calibration and use in extreme temperature conditions to help maintain image quality.\u003c\/p\u003e\u003ch2\u003eErgonomic Focus \u0026amp; Zoom Controls\u003c\/h2\u003e\u003cp\u003eThe TU435S features an ergonomic control arrangement developed around easy access to focus, zoom and commonly used functions.\u003c\/p\u003e\u003cp\u003eThe focus wheel and zoom controls are positioned for intuitive adjustment in the field, allowing users to quickly fine-tune the image while maintaining a comfortable grip.\u003c\/p\u003e\u003ch2\u003e1920×1080 AMOLED Display\u003c\/h2\u003e\u003cp\u003eThe Guide TU435S features a \u003cstrong\u003e0.49-inch 1920×1080 AMOLED display\u003c\/strong\u003e, providing a clear and detailed view of the thermal image.\u003c\/p\u003e\u003cp\u003eAvailable thermal palettes include \u003cstrong\u003eWhite Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia\u003c\/strong\u003e, allowing the image presentation to be adapted to different environments and viewing preferences.\u003c\/p\u003e\u003cp\u003eA \u003cstrong\u003e-5 to +5 diopter adjustment\u003c\/strong\u003e allows the eyepiece to be fine-tuned for individual eyesight requirements.\u003c\/p\u003e\u003ch2\u003eUp to 8 Hours Battery Runtime\u003c\/h2\u003e\u003cp\u003eThe TU435S uses a multi-battery system consisting of \u003cstrong\u003etwo built-in 18650 batteries and one external 18650 battery\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe system provides up to \u003cstrong\u003e8 hours of operating time\u003c\/strong\u003e, supporting extended observation periods in the field.\u003c\/p\u003e\u003cp\u003eUSB-C charging and data connectivity provide a convenient option for powering and connecting the device.\u003c\/p\u003e\u003ch2\u003eVideo, Audio \u0026amp; Wi-Fi Connectivity\u003c\/h2\u003e\u003cp\u003eThe Guide TU435S supports \u003cstrong\u003evideo and audio recording\u003c\/strong\u003e, allowing thermal observations to be captured directly through the scope.\u003c\/p\u003e\u003cp\u003eBuilt-in Wi-Fi functionality provides wireless connectivity with compatible external devices for supported viewing, sharing and device functions.\u003c\/p\u003e\u003ch2\u003eIP68 Weather Protection\u003c\/h2\u003e\u003cp\u003eWith an \u003cstrong\u003eIP68 protection rating\u003c\/strong\u003e, the TU435S is designed for demanding outdoor environments where exposure to dust, 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mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose the Guide TU435S?\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGuide TU435S Thermal Scope\u003c\/strong\u003e is designed for users wanting stronger longer-range performance from the TU 3.0 platform.\u003c\/p\u003e\u003cp\u003eIts \u003cstrong\u003e400×300 12μm thermal sensor, 15mK NETD sensitivity, 35mm lens and 1800m detection range\u003c\/strong\u003e provide capable thermal observation across larger properties and open terrain, while its \u003cstrong\u003e4.4× base magnification\u003c\/strong\u003e provides a closer initial view of distant subjects.\u003c\/p\u003e\u003cp\u003eWith ApexVision S1 processing, Hyper-Light image enhancement, Shutterless 3.0 technology, a 1920×1080 AMOLED display, up to 8 hours of battery operation, recording functionality, Wi-Fi connectivity, IP68 protection and an included quick-release mount, the TU435S delivers a strong combination of 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