Guide TU650LS Thermal Scope with LRF

The Guide TU650LS Thermal Scope with LRF is the long reach option in the TU 3.0 range, pairing a 50 mm lens with a 2600 m detection range and a built-in laser rangefinder good for 1200 m. It is aimed squarely at open country, where you spot an animal well beyond the distance you would ever shoot and need the extra glass to work out what it is. A quick release scope mount is included.

Detection to 2600 metres, ranged to 1200

The 50 mm lens is what buys the extra reach over the 35 mm models, taking detection out to 2600 m. The lens laser rangefinder gives you a distance reading to 1200 m in the same sighting picture, so on the long shots you are working from a number rather than an estimate. Magnification runs 3.7x to 29.6x with a field of view of 8.8° × 7.0°, or 15 m × 12 m at 100 m. That is a tighter view than the shorter lens gives, which is the trade you make for reach.

A cold paddock is where the 15 mK sensitivity earns its keep

Behind the lens sits a 640 × 512 detector on a 12 µm pitch with NETD of 15 mK. The lower that NETD figure, the smaller the temperature difference the scope can pull apart, which is exactly the problem after midnight when a deer standing in wet grass is barely warmer than what is behind it. Response waveband is 8 to 14 µm at 50 Hz, and the 1.03 inch AMOLED display at 2560 × 2560 means the detail the sensor captures reaches your eye. Seven palettes are available, and the shutterless design keeps the image live rather than pausing to recalibrate.

All night run time in rough conditions

Two built-in 18650 cells and one external 18650 deliver 14 hours of use, charged or powered over USB-C. Sealing is IP68 and the working range is -20°C to 50°C. The scope weighs 935 g and measures 421 × 89 × 80 mm, so it suits a rifle that lives on a bipod or rests more than one carried all night. Diopter adjustment is -5 to +5. Video and audio recording and a dual-band Wi-Fi hotspot make it easy to keep a record of a night out or a control job. Torque the quick release mount to no more than 2.5 N·m, or 22.13 in-lbs.

Ideal for

• Station and property managers covering large open paddocks and station country
• Deer hunters working cleared valleys and long sight lines
• Professional pest controllers doing contracted overnight work
• Shooters who want thermal reach and a rangefinder in a single mounted unit