The TN650LS uses Guide’s complete ApexVision S1 system architecture, combining the ApexCore S1 detector, Nexus 1.0 processing platform and Hyper-Light 2.0 imaging algorithm.

Together with its high-sensitivity 640 × 512 @ 12 μm detector and 15 mK NETD, the system helps reveal subtle temperature differences and improve target definition in low-contrast environments.

A smooth 50 Hz frame rate keeps moving targets clear, while the high-resolution thermal detector preserves greater detail when observing at longer distances or using digital magnification.

The TN650LS is designed for confident long-range thermal observation. Its 50 mm F1.0 lens provides detection at up to 2,600 metres, with a field of view of 8.2° × 4.9° and magnification ranging from 3.9× to 31.2×.

The integrated laser rangefinder measures distances at up to 1,500 metres, helping users assess how far away a detected subject is. Guide also includes a digital compass and gyroscope, while the official TN 2.0 product page identifies GPS as part of the platform’s positioning capabilities.

The TN650LS features multifunction rotary controls and customisable buttons designed to simplify operation in the field. Users can scroll through menu functions and click to confirm selections without moving their hands away from the natural binocular grip.

Manual focusing allows the image to be adjusted for different observation distances, while the streamlined button layout supports quiet and efficient operation.

The eyepiece system includes 20 mm eye relief, dioptre adjustment from −6 to +6 and interpupillary distance adjustment from 58 to 72 mm, allowing the binoculars to be configured for different users.

The TN650LS combines a customised built-in rechargeable battery with one replaceable external 18650 battery, providing up to seven hours of operating time.

The built-in battery supports 18 W fast charging and can reach approximately 80% charge in one hour. The external 18650 battery supports hot-swapping during operation, allowing a depleted battery to be replaced without shutting down the binoculars.

This flexible power system helps reduce downtime during security observation, search and rescue operations and extended field use.

The TN 2.0 Series features a slimmer housing inspired by traditional binocular design, providing a familiar grip and balanced handling.

The TN650LS weighs 720 g, making it easier to carry and hold during longer observation sessions. Its symmetrical body, adjustable interpupillary distance and intuitive controls help provide comfortable use for a wide range of operators.

Despite its streamlined design, the device retains an IP67 protection rating, helping protect it against dust, rain and demanding outdoor conditions.

The TN650LS features a 0.49-inch AMOLED display with a 1920 × 1080 resolution, providing a clear and detailed view of thermal imagery.

Seven thermal colour palettes allow users to adapt the display to the subject and surrounding conditions:

White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia.

Guide’s Hyper-Light 2.0 image-processing algorithm further supports improved contrast, image clarity and fine target detail.

The TN650LS supports Guide’s Auto Screen-Off function, which uses proximity sensing to turn the display off when the binoculars are moved away from the user’s eyes. This helps reduce unnecessary power consumption and unwanted screen illumination.

Guide also lists AI Tracking, which helps identify and follow moving targets within the viewing area. Dual-band Wi-Fi supports wireless connectivity through the compatible TargetIR application, while 64 GB of internal storage provides space for photographs and video recordings with audio.