Guide TU435L 3.0 Thermal Riflescope with LRF

The Guide TU435L 3.0 brings an integrated 1,500-meter laser rangefinder and ballistic calculator to the sub-$2,500 price point — the most affordable entry to LRF-equipped thermal riflescopes in the Guide 3.0 lineup. Built on the same shutterless 3.0 platform as the flagship models, the TU435L pairs a 400 × 300 thermal sensor with a 35mm F1.0 lens, 128 GB of storage, and 12-hour battery life in a lightweight 780-gram package.

Key Features

• 400 × 300 thermal sensor, 12 μm pixel pitch — 120,000 thermal pixels with ≤20 mK NETD deliver clean, usable imagery in complete darkness, fog, rain, and smoke, with a thermal detection range of 1,800 meters. Shutterless 3.0 calibration keeps the display live at 50 Hz — no freeze frames during recalibration.

• 35mm F1.0 germanium objective lens — a fast, light-gathering objective that balances detection range with a practical field of view (7.4° × 4.4°) for medium-range hunting scenarios. The 35mm focal length keeps the scope compact without sacrificing thermal brightness.

• 1,500 m laser rangefinder with ballistic calculator — range targets instantly and get holdover corrections calculated on-screen. At this price point, built-in LRF is a rare feature — most competitors in the sub-$2,500 bracket require external rangefinders. Ballistic profiles are loaded via the TargetIR app.

• 1920 × 1080 AMOLED display — a crisp, high-contrast eyepiece display that renders thermal imagery with clean detail across the full 4.4x–17.6x magnification range.

• Recoil-activated recording — each shot automatically captures a 15-second video clip and 5 still photos, stored on 128 GB of internal memory. Instant playback lets you review shots without lowering the rifle.

• 12-hour battery with hot-swap capability — a built-in 18500 rechargeable cell plus an external 18650 bay provide extended runtime with field-swappable power. Standard 18650 cells are available anywhere.

• IP68 / 6,000J shock rating — fully sealed against dust and submersion, and rated for recoil up to .300 Win Mag. Built to perform in extreme cold (−4°F) through desert heat (122°F).

Ideal For

Budget-conscious hunters who need integrated LRF — the TU435L is the most affordable thermal riflescope in the Guide lineup with a built-in laser rangefinder and ballistic calculator, eliminating the need to carry and operate a separate ranging device.

Hog and predator hunters working at moderate distances who want reliable thermal detection and range-to-target data in a single optic. The 1,800-meter detection range and 1,500-meter LRF cover the vast majority of practical hunting scenarios.

First-time thermal scope buyers who want a modern, full-featured scope with the Guide 3.0 platform — shutterless calibration, recoil-activated recording, TargetIR app integration, and IP68 durability — without the price premium of 640-class resolution.

Weight-conscious hunters who want LRF capability in a compact package. At 780 grams, the TU435L is one of the lightest LRF-equipped thermal riflescopes available, making it a practical choice for extended carries and lightweight rifle builds.