Longot TR42L is the compact, affordable thermal riflescope , engineered to give hunters premium imaging technology at the best price point. With a 384 × 288, 12 μm thermal sensor and <18 mK NETD sensitivity, the TR42L provides clear imagery and dependable detection in real-world hunting conditions.
A high-resolution 2560 × 2560 AMOLED display ensures sharp, high-contrast visuals, while the 42mm F/1.0 Germanium lens provides a balance of wide field of view and a 2,400-yard detection range — making this the perfect scope for hog hunters, predator callers, and anyone wanting a lightweight thermal solution.
Compact Performance for Mid-Range Hunts
With a 4.0× base magnification and stepped digital zoom up to 4×, the TR42L is tuned for mid-range versatility. Its 6.3° × 4.7° field of view provides wide situational awareness, helping hunters quickly acquire targets in open fields, pastures, and wooded edges.
Integrated LRF & Ballistic Calculator
The built-in 1,200-yard laser rangefinder (LRF) feeds directly into the onboard ballistic calculator, giving instant distance readings and holdover solutions for ethical long-range shots. No extra devices, no guesswork — just reliable shot data when you need it.
Rugged, Lightweight Build
Weighing only 31.75 oz, the TR42L is the most compact optic in the lineup. A magnesium alloy housing with IP67 waterproof protection ensures durability in the field, while the recoil rating supports .300 Win Mag / 7mm Mag calibers. The QD Picatinny mount makes attaching and detaching fast and repeatable.
