The TD633L Gen3 LRF Series handheld thermal imaging monocular combines advanced thermal sensor technology with an integrated laser rangefinder in a lightweight, compact design. Its intuitive focusing roller enables fast, precise one-handed adjustments, while the ergonomic, ambidextrous body ensures comfortable use for both left- and right-handed users. Built to withstand tough outdoor conditions, this rugged device boasts a long-lasting 10-hour battery life and IP67-rated waterproof and dustproof protection. With seamless Wi-Fi and Bluetooth connectivity, the TD633L allows effortless streaming, data transfer, and remote control, making it the ideal thermal monocular for wildlife observation, tactical security, search and rescue, and outdoor adventures.
TD633L Handheld Thermal Imaging Monocular
Compact. Accurate. Rugged.
Guide TD633 Key Features
Built-In Laser Rangefinder
Seamlessly integrated 1000m rangefinder allows fast, accurate distance measurements, ideal for target acquisition or range estimation.
High-Sensitivity Imaging
With a 640×512 @12μm VOx infrared detector and ≤20mK NETD, the TD633L captures clear thermal imagery even in dense fog or darkness.
One-Handed Ergonomic Design
Left- or right-handed operation is effortless with the symmetrical layout and focusing roller for quick, tactile adjustments.
Extended Runtime
Runs up to 10 hours on a single 18650 battery. Replace it in seconds, even in the dark, with no need to check orientation.
Smart Video & Audio Recording
Capture thermal video with sound, store over 100,000 images on the 32GB internal memory, and transfer them easily via Wi-Fi or USB-C.
Built to Perform
IP67-rated, waterproof and dustproof. Operates in extreme environments from -20°C to +50°C.
TD Gen3 Series features 12μm infrared detector
High-sensitivity detector, NETD down to 20mK
The TD Gen3 LRF Series features 12μm infrared detector with 640×512 and 400×300 resolutions, and offers 35mm lens, delivering impressively crisp images even in complete darkness.
Fine-tuning focus, scroll with fingers
The mini focusing roller design offers a unique experience of fast and precise fine-tuning, allowing users to adjust the focus with a simple scroll of one finger.
Ambidextrous design, one-handed operation
The symmetrical housing design allows for easy operation with both left and right hands. Its button layout is ergonomically crafted to suit user habits, enabling one-handed operation.
Upgraded visuals, enlarged AMOLED Display
Building on the previous generation, the TD Gen3 LRF Series features a 0.36” AMOLED display with a 1280×960 resolution, delivering more vivid details and a more comfortable viewing experience.
Extended battery life, uninterrupted power
During observation, exploration, and stalking in the field, the TD Gen3 LRF Series offers an impressive 10-hour runtime. The replaceable 18650 battery supports blind installation in the dark, with no need to distinguish between the positive and negative terminals.
Smart recording, expanded built-in storage
The upgraded smart recording function can capture videos with sound. Its built-in storage of up to 32GB allows users to store over 100,000 pictures without worrying about running out of space.
Built-in LRF, precise target distance
The built-in laser rangefinder module is seamlessly integrated into the device design, enhancing portability and practicality, with a maximum range of 1000 meters for precise target location.
Technical Parameters
| Sensor | |
| Type | Uncooled VOx Infrared Detector, 8 to 14μm |
| Resolution | 640×512@12μm |
| NETD | 20mK |
| Frame rate | 50Hz |
| Lens | |
| Objective lens | 35mm, F1.0 |
| Field of view | 12.5°×9.4° |
| FOV m@100m | 22×17 |
| Magnification | 1.8x~14.4x |
| Detection range | 1800m/1950yd |
| Focus | Manual |
| Display | |
| Display type | 0.36'' AMOLED 1280×960 |
| Color palettes | White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia |
| Eyepiece | Eye relief: 20mm; Diopter: -6 to +6; Zoom: 13.8x |
| Hardware | |
| Laser rangefinder | 1000m/1090yd |
| WIFI | 2.4G, 5G |
| Interface | USB-C |
| Others | Microphone, Bluetooth |
| System | |
| Recording function | Photo/Video (Audio recording included) |
| Memory capacity | 32GB |
| Power | |
| Battery type | Single, Replaceable 18650 Battery |
| Operating time | 10 hours |
| Environmental | |
| Operating temp. | -20°C to 50°C / -4°F to +122°F |
| Encapsulation | IP67 |
| Physical | |
| Weight (g/oz) | 376/13.26 |
| Size (mm/in) | 159×54×74/6.26×2.13×2.91 |
| Standard | Device, Dust-Free Cloth, Hand Strap, Eye Mask, Battery Charger, 18650 Battery ×1, 5V 2A Adapter (US or UK or Australia or Europe), USB-A to USB-C Cable, Quick Start Guide, Warranty Card |
| Optional | Bluetooth Remote Control, 18650 Battery |
See Beyond the Visible
Unlock Your Vision with the TD633L
Whether you’re tracking wildlife, securing a perimeter, or exploring the wilderness, the TD633L empowers you to see further, react quicker, and stay one step ahead. Engineered for precision and durability, it’s more than just a device — it’s your ultimate thermal advantage.
Get a Quote
Please complete the form below to submit your quote request.
Unlock next-level thermal vision with the TD433L Gen3 LRF Monocular. Compact, rugged, and built for real-world conditions, it delivers crystal-clear thermal imaging, built-in laser rangefinding, and a full 12-hour runtime—so you never miss a moment, even in total darkness.
Get a Quote
Please complete the form below to submit your quote request.