The ThermTec Wild 335L Thermal Monocular is a handheld thermal imaging device engineered for medium-to-long-range detection, game scouting, and nighttime observation. Featuring a 384 × 288 uncooled VOx sensor with a 12 µm pixel pitch and an NETD rating of ≤ 18 mK, the unit resolves subtle temperature differentials in difficult ambient conditions. It pairs a 35 mm focal length objective lens with a 3.3× optical base magnification to deliver a human-sized heat detection range of up to 1,800 m. An integrated 905 nm Class 1 laser rangefinder (LRF) provides instantaneous distance measurements up to 1,000 m with ±1 m accuracy. Powered by a replaceable 18650 Li-ion battery providing up to 8–10 hours of runtime, the Wild 335L features an IP67-rated magnesium alloy housing weighing 515 g, designed for reliable single-handed operation in field environments ranging from −20 °C to +50 °C.

Key Features

• High-Sensitivity Thermal Sensor: 384 × 288 VOx sensor with 12 µm pixel pitch, 50 Hz refresh rate, and sub-18 mK NETD thermal sensitivity.
• Integrated 1,000 m Laser Rangefinder: Built-in 905 nm Class 1 LRF with AI-assisted multi-target ranging accurate to ±1 m.
• High-Definition Display: 0.39-inch 1024 × 768 AMOLED screen supported by Electronic Image Stabilisation (EIS) and 6 colour palettes.
• Ergonomic Control: Designed for ambidextrous one-handed use featuring finger-wheel manual focusing and joystick menu navigation.
• Onboard Storage and Connectivity: 64 GB internal memory for photos and video recording, with USB-C output and Wi-Fi connectivity to the ThermTec Outdoor mobile app.
• Flexible Power Architecture: Operates on a removable 3.7 V 18650 Li-ion battery rechargeable via standard 5 V USB-C or external battery chargers.

Technical Specifications

• Sensor Resolution: 384 × 288 uncooled VOx
• Pixel Pitch & Spectral Range: 12 µm, 8–14 µm
• Thermal Sensitivity (NETD): ≤ 18 mK
• Frame Rate: 50 Hz
• Objective Lens: 35 mm
• Optical Magnification: 3.3× base magnification
• Digital Zoom: 1×–4× continuous
• Field of View: 7.5° × 5.6° (~13.1 m at 100 m)
• Detection Range: Up to 1,800 m (human profile)
• Laser Rangefinder Range: Up to 1,000 m (Class 1, 905 nm)
• Display: 1024 × 768 AMOLED (0.39-inch)
• Internal Memory: 64 GB
• Battery Type & Runtime: Replaceable 18650 Li-ion battery (3.7 V); up to 8–10 hours
• Ingress Protection & Drop Resistance: IP67 waterproof; 1 m drop rating
• Dimensions: 190.2 mm (L) × 69.3 mm (W) × 77.1 mm (H)
• Weight: 515 g (with battery)
• Mounting Interface: Standard 1/4"-20 tripod thread

Who is the ThermTec Wild 335L Thermal Monocular for?

• Mixed-terrain pest control operators — relies on the integrated 1,000 m laser rangefinder paired with a 384 × 288 uncooled VOx sensor to quickly confirm target distances across paddocks and undulating ground without carrying a standalone rangefinder.
• Hunters tracking shot game in low light — utilizes the 35 mm focal length lens and 3.3× optical base magnification to scan treelines and track lingering heat signatures across a 7.5° × 5.6° field of view during retrieval.
• Wildlife observers conducting nighttime surveys — benefits from a lightweight 515 g thermal monocular form factor with a single-handed finger-wheel focus that minimizes fatigue during multi-hour mobile observation sessions.

Less suitable for: Close-quarters scrub hunting requiring wider fields of view (better served by a 25 mm thermal monocular with lower base magnification), ultra-long-range target identification beyond 1,000 m (better served by a 640 × 512 thermal imaging unit), or direct firearm mounting (as this is a handheld observation unit not rated for weapon recoil).