Guide TB650S Thermal Clip-On

The Guide TB650S Thermal Clip-On combines high-resolution thermal imaging, long-range detection and a compact clip-on design developed to integrate with compatible daytime optics while maintaining natural handling and balance.

Featuring a 640×512 12μm thermal sensor with 15mK NETD thermal sensitivity, the TB650S delivers detailed thermal imagery and strong target definition across challenging environmental conditions. Its 50mm objective lens provides a detection range of up to 2600 metres, giving the unit substantial long-range thermal capability despite its compact dimensions.

Guide's ApexVision S1 thermal imaging architecture, Hyper-Light image processing and G-Zero shutterless technology work together to provide enhanced image clarity, contrast and smooth operation.

At just 485g, with a high-resolution 1920×1080 AMOLED display, replaceable 18650 battery, Wi-Fi connectivity, video and audio recording and an IP68 protection rating, the TB650S provides a powerful thermal clip-on platform in a compact package.

ApexVision S1 Image Processing

The TB650S is powered by Guide's ApexVision S1 image processing architecture, designed to enhance thermal image clarity, detail and overall viewing performance.

Advanced processing works alongside the high-resolution detector to improve contrast, reduce unwanted image noise and retain finer thermal detail.

This is particularly beneficial during longer-range observation and in environmental conditions where differences in temperature across the scene are relatively small.

High-Resolution 640×512 12μm Thermal Sensor

At the heart of the Guide TB650S is a 640×512 thermal detector with a 12μm pixel pitch.

The high-resolution sensor provides detailed thermal imagery across the viewing area, helping users distinguish subjects and surrounding terrain with greater definition.

Combined with 15mK NETD thermal sensitivity, the TB650S is capable of detecting subtle temperature differences within a scene, helping maintain useful detail in challenging weather and low thermal-contrast conditions.

A 50Hz frame rate provides smooth imagery while scanning or observing moving subjects.

50mm Lens & 2600m Detection Range

The TB650S features a 50mm objective lens, providing strong performance for longer-range thermal detection.

Paired with the 640×512 detector, the optical system delivers a stated detection range of up to 2600 metres.

This makes the TB650S particularly suited to users wanting substantial detection capability across larger properties and open terrain while retaining the convenience of a compact clip-on system.

1× Optical Configuration

The Guide TB650S uses a 1× optical configuration, allowing it to function as a thermal clip-on in front of a compatible daytime optic without introducing substantial optical magnification of its own.

This helps preserve the familiar viewing characteristics and handling of the existing optical system while adding thermal imaging capability.

Optimised for Day Optics up to 15×

The TB 2.0 platform is designed for use with compatible daytime optics providing magnification up to 15×.

Fine zeroing adjustment of approximately 1.22cm at 100 metres allows precise alignment when configuring the thermal clip-on with the host optic.

This helps maintain accurate alignment while allowing users to retain the familiar controls, reticle and ergonomics of their existing daytime scope.

G-Zero Shutterless Technology

The TB650S incorporates Guide G-Zero shutterless technology, designed to provide continuous thermal viewing without the regular image freezes associated with conventional shutter-based calibration.

Reducing calibration interruptions helps maintain a smoother viewing experience while also minimising operational noise in the field.

Hyper-Light Image Processing

Guide's Hyper-Light algorithm works alongside the high-sensitivity thermal detector and ApexVision architecture to improve image contrast, detail and overall clarity.

The processing system helps reduce unwanted image noise while enhancing finer thermal features, particularly during longer-range observation or in lower-contrast environments.

1920×1080 AMOLED Display

The Guide TB650S features a 0.39-inch 1920×1080 AMOLED display, providing a clear and high-resolution thermal image.

Available colour palettes include White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia, allowing users to select the image presentation best suited to the environment and their personal preference.

Lightweight 485g Design

At approximately 485g, the TB650S is designed to minimise additional weight when mounted in front of a compatible daytime optic.

Its compact dimensions of approximately 139 × 86 × 79mm help maintain a balanced overall setup while providing high-resolution thermal imaging capability.

The smaller footprint also makes the unit easier to transport and carry when not installed.

Replaceable 18650 Battery

The TB650S is powered by a single replaceable 18650 rechargeable battery, providing up to 5 hours of operating time.

A replaceable battery system allows compatible spare batteries to be carried for extended field use.

The device also supports USB-C external power, providing an additional option when a suitable power source is available.

Video, Audio & Wi-Fi Connectivity

The Guide TB650S supports video and audio recording, allowing thermal observations to be captured directly through the device.

Built-in Wi-Fi hotspot functionality provides wireless connectivity with compatible external devices for supported viewing, sharing and device functions.

IP68 Weather Protection

With an IP68 protection rating, the TB650S is designed for demanding outdoor environments where exposure to dust, water and changing weather conditions may occur.

Its specified operating temperature range of -20°C to 50°C provides reliable operation across a broad range of field conditions.

Guide TB650S Specifications

Why Choose the Guide TB650S?

The Guide TB650S Thermal Clip-On is designed for users wanting high-resolution thermal capability while retaining the familiar characteristics of a compatible daytime optic.

Its 640×512 12μm thermal sensor, 15mK NETD sensitivity, 50mm lens and 2600m detection range provide strong long-distance thermal performance, while its 1× clip-on configuration is designed to integrate with compatible day optics without replacing the existing optical system.

At only 485g, the TB650S adds relatively little weight while still delivering ApexVision S1 processing, Hyper-Light enhancement, G-Zero shutterless operation, a 1920×1080 AMOLED display, recording functionality, Wi-Fi connectivity, replaceable 18650 power and IP68 protection.

For users wanting to add high-resolution thermal imaging capability to a compatible daytime optical setup, the TB650S provides a compact and highly capable solution.