Guide TU650S Thermal Scope

The Guide TU650S Thermal Scope carries the 50 mm lens and 2600 m detection range of the flagship without the laser rangefinder, which makes it the value pick for open country shooting where you already know your distances. The imaging core is the same 640 × 512 sensor at 15 mK, so nothing has been given up on picture quality. A quick release scope mount is in the box.

Reach across open ground

Detection out to 2600 m means you can sweep a whole paddock or a cleared face from one position and pick up heat long before an animal is close enough to identify. 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. Work at the low end to find movement, then wind it up to sort a goat from a deer before you commit.

Picture quality that survives a cold, still night

The 640 × 512 detector uses a 12 µm pixel pitch and posts a NETD of 15 mK. That last number is the practical one. NETD is the smallest temperature difference the sensor can register, and a lower figure keeps animals separated from the background in the hours before dawn when everything has settled to the same temperature. The 8 to 14 µm waveband and 50 Hz refresh keep the image smooth while you pan, and the 1.03 inch AMOLED at 2560 × 2560 gives you a clean, bright view. Seven palettes are included and the shutterless design avoids the recalibration freeze.

Long nights, wet weather, no fuss

Battery life is 14 hours from two built-in 18650 cells plus one external 18650, with USB-C charging so a power bank in the pack covers a multi-night trip. The scope is IP68 rated and rated to work from -20°C to 50°C. It weighs 921 g and measures 421 × 89 × 80 mm. Diopter adjusts -5 to +5 so you can set it to your eye and leave it. Video and audio recording plus a dual-band Wi-Fi hotspot let you save and share footage, which is useful when you need to show a landholder what is actually on the place. Torque the quick release mount to no more than 2.5 N·m, or 22.13 in-lbs.

Ideal for

• Property and station managers running pest control across big open country
• Deer and pig hunters who range by landmark on familiar ground
• Goat and fox shooters wanting maximum thermal reach for the money
• Professional operators needing recorded evidence of a control job