GUIDE Thermal Imaging Handheld Device TD653L 3.0 Series

Powerful thermal imaging technology for precise observations at long distances
The Guide Wärmebild Monokular TD653L 3.0 Series combines modern sensor technology with thoughtful ergonomics and offers you a reliable solution for demanding observations in the field and in nature. Equipped with a high-resolution 640 × 512 pixel sensor and a thermal sensitivity of 20 mK, the device delivers detailed and high-contrast images even in difficult weather conditions.

Thanks to the powerful 50 mm optics, the monocular is particularly suitable for medium to long distances. The integrated laser rangefinder additionally allows for precise distance measurement up to 1000 meters and significantly expands the range of applications.
High-resolution sensor for maximum image details
The integrated VOx infrared sensor operates in the range of 8 to 14 µm and offers a resolution of 640 × 512 pixels with a pixel size of 12 µm. In combination with a frame rate of 50 Hz, this results in a smooth and clear image – ideal for dynamic observations. The high thermal sensitivity of 20 mK ensures that even the smallest temperature differences become visible.
Wide Range and Flexible Magnification
With an optical base magnification of 2.6x and a digital zoom of up to 20.8x, the device adapts flexibly to different observation situations. The field of view of 15 × 12 meters at 100 meters offers a good balance between overview and detail recognition. The maximum detection distance of up to 2600 meters makes the TD653L a powerful companion for open areas.
Integrated laser rangefinder for precise distance measurements
The integrated laser rangefinder reliably measures distances up to 1000 meters. This provides you with additional security in estimating distances and allows you to categorize your observations even more precisely.
Ergonomic Design and Easy Operation
The compact and symmetrical design allows for comfortable use for both left- and right-handed users. Focusing is achieved through a smooth focusing wheel that can also be operated with one hand. Weighing only 472 grams, the device feels pleasant in the hand and is ideal for longer deployments.
Modern equipment with Wi-Fi, storage, and audio function
The TD653L features integrated Wi-Fi (2.4 GHz and 5 GHz) and can be connected with the appropriate app. Photos and videos can be directly saved on the internal 32 GB storage – including audio recording thanks to the integrated microphone. Data transfer is quick and straightforward via the USB-C interface.
Long Runtime and Robust Construction
The interchangeable 18650 battery provides a runtime of up to 10 hours and can be quickly replaced if necessary – even in the dark. The IP67 certification reliably protects the device from dust and water, ensuring it remains operational even under adverse conditions. Operation is possible at temperatures ranging from -20 °C to +50 °C.
Technical Data at a Glance

SensorVOx, 640 × 512 pixels, 12 µm
NETD20 mK
Frame Rate50 Hz
Lens50 mm, F1.0
Field of View (100 m)15 × 12 m
Magnification2.6x – 20.8x
Detection Rangeup to 2600 m
Display0.36" AMOLED, 1280 × 960
Laser Rangefinderup to 1000 m
Storage32 GB internal
Battery18650, replaceable
Operating Timeup to 10 hours
Protection ClassIP67
Weight472 g

FAQ – Frequently Asked Questions about the Guide TD653L
What distances is the device suitable for?

The TD653L is particularly designed for medium to long distances due to its 50 mm lens and offers a detection range of up to 2600 meters.

Can the battery be replaced?

Yes, the 18650 battery is replaceable and can be quickly swapped out – ideal for longer operations.

Is it possible to connect to a smartphone?

Yes, via the integrated Wi-Fi function, the device can be connected to an app to transfer images and videos or to make adjustments.