Guide Orion O635CS Thermal Clip-On

The Guide Orion O635CS Thermal Clip-On combines high-resolution thermal imaging with an exceptionally compact and lightweight design, delivering powerful thermal capability while adding minimal size and weight to a compatible daytime optical system.

Featuring a 640×512 12μm thermal sensor with 15mK NETD thermal sensitivity, the O635CS delivers detailed thermal imagery and strong target definition across challenging environmental conditions. Its 35mm objective lens provides a detection range of up to 1800 metres, while Guide's ApexVision technology and Hyper-Light 2.0 processing enhance image clarity, contrast and fine thermal detail.

Despite its high-resolution detector, the Orion O635CS weighs only 285g and measures just 99 × 73 × 68mm. Combined with a 1× optical configuration, Full HD 1920×1080 AMOLED display, replaceable 18500 battery and IP67 protection, the O635CS provides premium thermal performance in an extremely portable clip-on platform.

ApexVision Thermal Imaging Technology

The Guide Orion O635CS incorporates ApexVision thermal imaging technology, combining advanced sensor performance with intelligent image processing to produce clear, smooth and highly detailed thermal imagery.

ApexVision works alongside the 640×512 detector to improve image definition, contrast and thermal detail across changing terrain, weather and temperature conditions.

This processing helps retain useful environmental detail around detected heat signatures rather than displaying the target in isolation, providing a more informative thermal viewing experience.

High-Resolution 640×512 Thermal Sensor

At the heart of the O635CS is a 640×512 thermal detector with a 12μm pixel pitch.

Compared with lower-resolution thermal sensors, the 640×512 detector provides significantly greater thermal image detail, helping users distinguish finer features within both detected heat signatures and the surrounding environment.

With 15mK NETD thermal sensitivity, the sensor is capable of recognising subtle temperature differences across a scene, helping maintain image definition in low thermal-contrast environments.

A 50Hz refresh rate provides smooth imagery when scanning terrain or observing moving subjects.

35mm Lens & 1800m Detection Range

The Guide Orion O635CS features a 35mm objective lens, providing a strong combination of field of view and longer-range thermal detection.

The system offers a stated detection range of up to 1800 metres, making it suitable for scanning and observation across open terrain while retaining a highly compact physical design.

Combined with the higher-resolution 640×512 detector, the 35mm lens provides strong detail without requiring the size and weight associated with larger objective lenses.

Wide 12.5° Field of View

One of the advantages of combining the 640×512 detector with a 35mm lens is the relatively wide field of view.

The O635CS provides approximately 12.5° × 9.4°, or 22 × 17 metres at 100 metres.

This allows a substantial area to remain visible while scanning, making it easier to locate heat signatures and maintain awareness of the surrounding terrain.

Ultra-Light 285g Construction

Despite its 640×512 detector, the Guide Orion O635CS weighs just 285g.

Measuring only 99 × 73 × 68mm, its compact housing minimises the additional bulk introduced to a compatible optical setup.

Lower weight helps preserve the balance and handling characteristics of the overall system and can reduce fatigue during extended periods of use.

1× Thermal Clip-On Configuration

The O635CS uses a 1× optical configuration, allowing thermal imaging capability to be introduced while retaining the characteristics of a compatible host optic.

The clip-on configuration provides users with the flexibility to add thermal capability without replacing their existing daytime optical system.

This makes the Orion O635CS a versatile solution for users wanting both conventional daytime optics and high-resolution thermal capability from the same setup.

Hyper-Light 2.0 Image Enhancement

Guide's Hyper-Light 2.0 image processing technology works with the high-resolution thermal detector to enhance image quality in real time.

The algorithm intelligently adjusts image contrast, brightness, fine detail, target definition and tonal balance to provide a clearer and more informative thermal scene.

This processing is particularly useful when environmental conditions produce limited temperature differences between objects and their surroundings.

Fast 3-Second Startup

The Orion C platform features a rapid startup system capable of bringing the device into operation in approximately three seconds.

Fast startup allows the thermal attachment to remain powered down when not required while still being quickly available when thermal observation is needed.

This also assists with battery management during longer periods in the field.

Full HD 1920×1080 AMOLED Display

The Guide Orion O635CS features a 0.49-inch AMOLED display with 1920×1080 resolution.

The Full HD display complements the 640×512 thermal sensor by providing a detailed, high-contrast presentation of the processed thermal image.

Available thermal palettes include White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia, providing multiple viewing options for different environments and user preferences.

Replaceable 18500 Battery

The O635CS is powered by a single replaceable 18500 rechargeable battery, providing up to 7 hours of stated operating time.

The replaceable battery design provides additional flexibility during extended use, as compatible spare batteries can be carried and exchanged when required.

The device also features USB-C connectivity for convenient charging and external power functionality.

Efficient Power Consumption

The Orion C platform has been designed to provide extended operating time while maintaining its extremely compact dimensions.

Efficient power management allows the O635CS to operate from a single replaceable battery without requiring a larger integrated battery system that would increase overall size and weight.

IP67 Weather Protection

The Guide Orion O635CS carries an IP67 protection rating, providing protection against dust and water exposure encountered during outdoor operation.

Its specified operating temperature range of -20°C to 50°C allows the device to perform across a broad range of environmental and climatic conditions.

Guide Orion O635CS Specifications

Why Choose the Guide Orion O635CS?

The Guide Orion O635CS Thermal Clip-On stands out by combining a 640×512 high-resolution thermal sensor with an exceptionally compact 285g design.

Its 12μm detector and 15mK thermal sensitivity provide detailed thermal imagery, while the 35mm objective lens and 1800m detection range deliver strong performance across both scanning and longer-range observation.

The 640×512 detector also provides a wider 22 × 17 metre field of view at 100 metres than the lower-resolution O435CS, giving the O635CS excellent situational awareness while retaining substantial thermal detail.

Combined with ApexVision technology, Hyper-Light 2.0 processing, a Full HD 1920×1080 AMOLED display, 3-second startup, replaceable battery system and IP67 protection, the Guide Orion O635CS delivers high-resolution thermal performance in an extremely lightweight clip-on platform.