What sets the ThermTec Ibex apart
The Ibex 335L is ThermTec’s lightweight, high-value tube scope, offering premium capability in a package that handles like a day scope. At around 700 g it balances well on the rifle, points naturally, and makes the transition from daytime optics easy, which is why it suits hunters moving to thermal for the first time as well as experienced shooters who want to save weight.
The specification punches above the price. A 384×288 12 µm sensor with NETD <18 mK resolves subtle temperature differences for a clean image in fog and rain, and a large 1600×1200 OLED display shows that detail with two selectable viewing modes and comfortable eye relief. Thermal super resolution keeps digital zoom smooth up to 14.8x. The integrated 1,000 m laser rangefinder and ballistic calculator support accurate shot placement; the central turret focus system allows fast adjustments without leaving the target, and the AutoSight System returns to base magnification after a shot. With a recoil rating of 6,000 J and IP67 sealing, the Ibex is a genuinely capable sight at a fair price.
Core Features & Practical Benefits
NETD 18mK sensor and 1600×1200 OLED on the ThermTec Ibex
The sub-18mK sensor and high-resolution OLED display give a sharp, high-contrast image that resolves fine temperature differences in fog, rain and darkness.
Integrated 1,000 m laser rangefinder and ballistics
The built-in rangefinder measures distance without leaving the target, and the ballistic calculator provides a corrected aim point for the drop.
Lightweight tube design
At around 700 g, the Ibex balances well and handles like a day scope, easing the move to thermal and speeding target acquisition.
ThermTec AutoSight System and central turret focus
TASS returns to base magnification after a shot to keep the target in view, and the central turret focus allows fast, intuitive adjustment while aiming.
Thermal super-resolution zoom
TSR keeps digital zoom smooth and well-defined up to 14.8x, preserving image quality at higher magnifications.
Real-World Use Cases
- Night Hunting & Varmint Control: A light, user-friendly-handling sight for fox, hog, and coyote with ranged shots.
- Wildlife Observation & Management: Precise identification and engagement in poor visibility.
- Perimeter Security & Industrial Patrol: Detect and range contacts across dark ground.
- Search & Rescue Operations: Locate and range a heat source at a distance.
- Farm & Livestock Protection: Engage predators around stock at night.
Technical Performance Breakdown
- Optical & Thermal Engine: 384×288 12µm VOx sensor, 35mm F1.0 germanium lens, 50 Hz refresh, 8-14µm spectral range, and multiple palettes.
- Image Processing & Display: Thermal Super Resolution digital zoom to 14.8x, AI-enhanced processing, and a 1600×1200 0.5-inch OLED display with square and circular views.
- Media, Connectivity & Smart Features: RAV recoil-activated recording, 64GB memory, multiple reticles, multiple zeroing profiles, Wi-Fi and ThermTec app, ballistic calculator.
- Physical Build & Power Management: ~700 g aluminum/magnesium body, IP67, recoil to 6,000 J, replaceable 18650 (6-7 h).
What’s Included in the Box
- ThermTec Ibex 335L thermal scope
- Mount and 18650 battery
- Charger and cable
- Carry case and lens cloth
- User manual
System Compatibility & Accessories
- Mounting Systems: 30mm rings or Picatinny/Weaver mount; confirm ring size for your rail.
- Recommended Accessories: Spare 18650 batteries, external power bank, QD mount, carrying case.
- Software Compatibility: ThermTec mobile app for iOS and Android.
Expert Technical Summary
- Who Should Buy It: Hunters wanting a lightweight, easy-handling thermal scope with integrated ranging at a high-value price, and those moving to thermal from day optics.
- Who Should Look Elsewhere: Buyers needing a 640 sensor or the sharpest long-range image should look at the Oryx; those wanting dual FOV should consider the Ares 2.0.
- Key Technical Verdict: A lightweight, well-priced thermal scope with a sub-18mK 384 sensor, 1,000 m LRF and high-resolution OLED; strong value for general and mid-range hunting.
- Brand: ThermTec
- Complementary Product: ThermTec Cyclops thermal monocular
- Alternative Model: ThermTec Ares 2.0
- Guide: Best thermal scope for the money






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