Guide TU635LS Thermal Scope with LRF

The Guide TU635LS Thermal Scope with LRF lets you find the animal and confirm the range without picking up a second device. The thermal channel picks up heat out to 1800 m and the built-in lens laser rangefinder returns a distance to 1200 m, so a fox on the far side of a paddock goes from spotted to ranged in seconds. A quick release scope mount is included.

Range the target while you are still looking at it

The rangefinder is built into the lens housing, so the distance reading appears in the same sighting picture you are already holding. Out to 1200 m you get a number to dial or hold off, which matters most on the longer shots where a guess at the range is the difference between a clean result and a miss. The 35 mm lens runs 2.6x to 20.8x magnification with a 12.5° × 10.0° field of view, or 22 m × 18 m at 100 m, so you can scan wide at the base setting and then zoom once something moves.

Detail that holds up once the ground has cooled

The 640 × 512 detector on a 12 µm pixel pitch is paired with a NETD figure of 15 mK. A lower NETD means finer temperature discrimination, so when the paddock has given up its heat and a pig is only a degree or so warmer than the grass behind it, the shape still separates from the background instead of smearing. The 8 to 14 µm waveband and 50 Hz refresh keep panning smooth, and the 1.03 inch AMOLED display at 2560 × 2560 shows that detail clearly. Seven palettes are on board, and the shutterless design means no periodic freeze while the unit recalibrates.

Built to stay out all night and get rained on

Two built-in 18650 cells plus one external 18650 give 14 hours of run time, with USB-C for charging or running off a power bank. The housing is rated IP68 and works from -20°C to 50°C. It weighs 875 g and measures 420 × 89 × 80 mm, with a -5 to +5 diopter adjustment. Video and audio recording are built in, with a dual-band Wi-Fi hotspot for pulling footage off to a phone. Torque the quick release mount to no more than 2.5 N·m, or 22.13 in-lbs.

Ideal for

• Deer and pig hunters taking longer shots where the range is a genuine unknown
• Station and property managers running night pest control over open country
• Professional pest controllers who need to log and share footage of a job
• Shooters who want one scope that moves between rifles on a quick release mount