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Guide TD633 LRF Thermal Monocular (640 Core, 35mm, Laser Rangefinder)
The Guide TD633 LRF is a versatile thermal monocular that combines a 35mm lens with an integrated laser rangefinder for fast scanning and reliable detection. Its lightweight build and one handed operation provide long runtime for extended hunts.
The Guide TD633 LRF thermal monocular is a versatile 640×512 handheld thermal built for fast scanning and reliable detection across a wide range of environments. From Guide Thermal USA, this compact unit features a 35mm lens, an integrated laser rangefinder, and supports one handed operation—making it easy for hunters to quickly locate targets in the field.
Why the Guide TD633 LRF Stands Out
The TD633 LRF focuses on speed and field of view.
Its 35mm lens delivers a wider viewing area, letting you scan more ground and pick up movement faster. This makes it especially effective in mixed terrain where quick target acquisition is critical.
Key Features
- 640×512 Thermal Sensor (12µm, ~18mK NETD) – Proven detection performance
- 35mm Objective Lens – Wider field of view for faster scanning
- Integrated Laser Rangefinder – Instant distance confirmation when needed
- High-Resolution AMOLED Display – Clean, easy-to-read image
- Strong Detection Range (~2200–2500 yards) – Reliable in real-world conditions
- Compact Handheld Design – Lightweight and portable for all-day carry
- Replaceable 18650 Battery – Long runtime with consistent, dependable power
Real-World Use
The Guide TD633 LRF is ideal for scanning and locating animals quickly. Its wider field of view makes it easier to track movement and maintain situational awareness.
The lightweight build and intuitive one handed operation mean you stay focused on the target—not the tool. The replaceable 18650 batter delivers consistent, dependable power throughout your hunt. Whether you're covering open fields or tight terrain, the TD633 keeps up.
Bottom Line
The Guide TD633 LRF is a fast, easy-to-use thermal monocular built for efficient scanning and target detection. With its 640 core, 35mm lens, integrated laser rangefinder, and long runtime powered by a replaceable 18650 battery, it delivers dependable performance in a compact, user-friendly package.
Would you like more field of view check out the 50 MM lens version here.
5 Year Device Warranty And 10 Year Sensor Warranty Best In The Business
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°×10° |
| FOV m@100m | 22×17 |
| Magnification | 2.0x~16x |
| Detection range | 1800m/1950yd |
| Focus | Manual |
| Digital Zoom | 8x |
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, UK, Australia, and Europe), USB-A to USB-C Cable, Quick Start Guide, Warranty Card |
| Optional | Bluetooth Remote Control, 18650 Battery |
Guide USA Manufacturer's Warranty
Guide Sensmart is pleased to offer an industry-leading warranty on all thermal sensors. Our core components, including detectors and sensors, are backed by a 10-year warranty, ensuring your product will remain a reliable companion for years to come.
We also offer:
- A 5-year warranty on all other components.
- A 2-year warranty on accessories such as batteries, chargers, and cables.
Products purchased from Guide Sensmart Company, the official US online store, and authorized dealers qualify for our standard after-sales services. These services include a free warranty, returns and exchanges, and original factory repairs, provided you present a sales certificate or receipt.
Our after-sales service guarantee does not cover the following situations:
- Unauthorized modifications, disassembly, or repairs not approved by Guide Sensmart.
- Malfunctions or damages due to misuse, improper environments, or poor maintenance.
- Accidents caused by force majeure events like fires, floods, earthquakes, or lightning.
- Normal wear and tear during product use.
- Alteration, replacement, or damage to the original serial number label, absence of a serial number, or discrepancies between the product model or number on the warranty certificate and the actual product.
- Consumable accessories, such as batteries or protective films, that wear out naturally unless failure is due to material or process defects.
- Product completeness and appearance issues not raised upon acceptance.
- Failures or damages caused by third-party products, software, services, or actions.
Our warranty ensures repair of manufacturer defects during the specified period if the item has been used according to the user manual. The warranty excludes any external damage to the device, its casing, or adjustable parts' movements.
During the warranty period, Guide Sensmart will, at its discretion, repair or replace any optic that becomes defective from normal use. If repair is not possible, we will provide a replacement in equal or better condition.
Our warranty follows the product, not the original owner, and is tied to the sale date to the dealer or end user registration. It covers normal use and excludes cosmetic damage, normal wear, intentional damage, theft, loss, acts of God, or improper use. Any product that is modified, opened, or tampered with will void the warranty. Altered or damaged serial numbers will also void the warranty.
- Customers must fullfill an RMA before sending their unit. Customers must ship products to Guide Sensmart USA at their own expense. Guide Sensmart USA will return the product at no cost. Returns without an RMA will not be accepted. Guide Sensmart USA is not liable for damages or loss during shipping to our facility. Products returned under warranty should be packaged securely to prevent transit damage and must include:
- A detailed description of the problem and error conditions.
- A copy of the original receipt showing the purchase date and location.
- Return shipping information, including the return address and contact person.
For any questions, please contact us and we will get back to you shortly.
Please note:
The period during which repair services are provided starts from the day of sale or, if undetermined, from the date of production. The warranty period for rechargeable batteries/units, including those in the package, is two years.
Begining of warranty is linked to your purchase date, therefore keep your invoice in order to justify a warranty request.
Our after-sales department is located in Dallas, Texas, ensuring a fast and hassle free replacement or repairement process.
How to make a warranty claim:
Please fill out a RMA form on this page or contact the support team repair.us@guideir.com in event of an issue that would need a warranty claim.