Guide TB650LS Thermal Clip-On

The Guide TB650LS Thermal Clip-On combines high-resolution thermal imaging, integrated laser rangefinding and a compact clip-on design developed for use with compatible daytime optics.

Featuring a 640×512 12μm thermal sensor with 15mK NETD thermal sensitivity, the TB650LS 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, while the integrated 1200m in-lens laser rangefinder provides fast and accurate distance measurement directly through the device.

Guide's ApexVision S1 thermal imaging architecture, Hyper-Light image processing and G-Zero shutterless technology work together to enhance image clarity, contrast and smoothness while reducing interruptions during operation.

At just 485g, with a high-resolution 1920×1080 AMOLED display, replaceable 18650 battery, Wi-Fi connectivity, recording functionality and IP68 protection, the TB650LS combines long-range thermal performance and integrated ranging in a compact clip-on platform.

ApexVision S1 Image Processing

The TB650LS 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 preserve finer thermal details across the scene.

This is particularly beneficial during longer-range observation and in environmental conditions where natural thermal contrast is reduced.

High-Resolution 640×512 12μm Thermal Sensor

At the heart of the Guide TB650LS 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 detector is capable of recognising subtle temperature differences within a scene, helping maintain useful image detail in challenging weather and low thermal-contrast environments.

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

50mm Lens & 2600m Detection Range

The TB650LS features a 50mm objective lens, providing strong longer-range thermal performance.

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

This combination makes the TB650LS particularly suited to users wanting detailed thermal observation across large properties and open terrain while retaining the convenience of a compact clip-on system.

Integrated 1200m In-Lens Laser Rangefinder

One of the defining features of the TB650LS is its 1200m laser rangefinder integrated directly into the objective lens assembly.

Positioning the LRF close to the optical axis helps minimise parallax between the ranging system and viewed image while maintaining a streamlined device profile.

The integrated rangefinder allows users to locate a thermal signature and determine its distance through the same device, removing the need to switch to a separate handheld rangefinder.

1× Clip-On Configuration

The Guide TB650LS uses a 1× optical configuration, allowing it to add thermal capability to a compatible daytime optic without introducing significant optical magnification of its own.

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

Optimised for Compatible Day Optics up to 15×

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

Fine adjustment of approximately 1.22cm at 100 metres allows accurate alignment during setup.

This configuration allows the existing daytime optic to remain part of the viewing system while the TB650LS adds high-resolution thermal imaging in front of it.

G-Zero Shutterless Technology

The TB650LS features 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 provide a smoother viewing experience while also minimising operational noise.

Hyper-Light Image Processing

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

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

1920×1080 AMOLED Display

The Guide TB650LS features a 0.39-inch 1920×1080 AMOLED display, providing a clear and high-resolution presentation of the 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 personal preference.

Lightweight 485g Design

At approximately 485g, the TB650LS is designed to minimise additional weight when installed with a compatible daytime optic.

Its compact dimensions of approximately 139 × 86 × 79mm help maintain a relatively balanced overall setup while still providing high-resolution thermal imaging and integrated laser ranging.

The compact footprint also makes the device easier to transport and carry when not installed.

Replaceable 18650 Battery

The TB650LS is powered by a single replaceable 18650 rechargeable battery, providing up to 5 hours of operating time.

The 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 power option when a compatible source is available.

Video, Audio & Wi-Fi Connectivity

The Guide TB650LS 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 TB650LS 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 TB650LS Specifications

Why Choose the Guide TB650LS?

The Guide TB650LS Thermal Clip-On is designed for users wanting high-resolution thermal imaging and integrated distance measurement while retaining a compatible daytime optical setup.

Its 640×512 12μm thermal sensor, 15mK NETD sensitivity, 50mm lens and 2600m detection range provide strong long-distance thermal performance, while the built-in 1200m in-lens laser rangefinder adds convenient ranging capability directly through the device.

At only 485g, the TB650LS remains relatively compact while also providing ApexVision S1 processing, Hyper-Light image enhancement, G-Zero shutterless operation, a 1920×1080 AMOLED display, recording functionality, Wi-Fi connectivity, replaceable 18650 power and IP68 protection.

For users seeking a high-resolution thermal clip-on with integrated ranging capability, the TB650LS provides a powerful and versatile solution.