Guide TD635LS Thermal Monocular with LRF
Guide TD635LS Thermal Monocular with LRF
The Guide TD635LS Thermal Monocular has been upgraded with the latest ApexVision technology from Guide Sensmart. Equipped with a highly sensitive 640 × 512 @12μm thermal detector with an impressive NETD of <15mK, it provides clear thermal imagery and enhanced target detection in challenging weather and low-visibility conditions.
Featuring an integrated 1200m laser rangefinder, the TD635LS allows users to accurately measure distances while maintaining a lightweight and ergonomic design. The intuitive focusing roller enables smooth one-handed operation, while the symmetrical housing ensures comfortable use with either hand.
Combining advanced thermal performance, long battery life, laser rangefinding capability, and a compact form factor, the Guide TD635LS LRF is an ideal solution for wildlife observation, pest control, search and rescue, security applications, and general outdoor exploration.

Complete ApexVision S1 System Architecture
Guide Sensmart's next-generation thermal imaging solution that redefines the infrared core of outdoor optics from the ground up. Engineered for any condition, ApexVision delivers ultra-clear visuals with smooth, ghost-free motion, high-fidelity imaging, and razor-sharp detail at long range.
Powerful 12μm Detector for Sharper Images
The TD Gen3 LRF Series features a 12μm infrared detector, available in 640×512 and 400×300 resolutions, paired with a 35mm lens to deliver crisp, detailed images even in complete darkness.
Ambidextrous Design, Effortless One-Handed Operation
Designed for ambidextrous use, the symmetrical housing ensures equal comfort for left- and right-handed users. The ergonomic control layout enables smooth, one-handed operation
Fine Focus Control, Fingertip Precision
The mini focusing roller allows for fast, precise adjustments with a simple one finger scroll.
Large AMOLED Display for Upgraded Visuals
Building on the previous generation, the TD Gen3 LRF Series features a 0.49" AMOLED display with 1280×960 resolution, delivering sharper detail and a more comfortable viewing experience.
Built-in LRF For Precise Target Identification
Seamlessly integrated into the design, the built-in laser rangefinder enhances both portability and functionality, offering precise distance measurement up to 1200 metres.
Specifications
| Product Name | Guide TD635LS Thermal Monocular with LRF |
|---|---|
| Laser Rangefinder | 1200m |
| Type-C Power Supply | USB-C (Power supply/USB2.0) |
| Battery Operating Time | 10 Hours |
| Battery Type | Single, Replaceable 18650 Battery |
| Audio Recording | Yes |
| Standby Mode | - |
| Hotspot | Yes |
| Capture Snapshot | - |
| Record Video | Yes |
| Working Temperature | -20°C to 50°C |
| Dimension | 171×54×74mm |
| Weight | 374g |
| Protection Level | IP67 |
| Image Pro | N/A |
| HSIS | N/A |
| Zoom Pro | N/A |
| Diopter | -6 to +6 |
| Exit Pupil | - |
| Palettes | White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia |
| Display | 0.49'' AMOLED 1440×1080 |
| Magnification | 2.03x~16.24x |
| Field of View (Degrees/m @ 100m) | 22×17 |
| Detection Range | 1800m |
| NETD | 15mK |
| Response Waveband | 8 to 14μm |
| Pixel Interval | 12μm |
| Frame Rate | 50Hz |
| Sensor Resolution | 640×512 |
| Lens (Focal Length) | 35mm |