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Thermal Imaging Scope GUIDE TU650L 3.0 50mm is a professional electro-optical device featuring a high-resolution 640×512 pixel sensor and an integrated laser rangefinder, designed for observation, detection, and precise engagement at medium and long ranges. The updated 3.0 series combines an ergonomic body styled as a classic 30mm optical scope tube, a fast 50mm objective lens, and a highly sensitive uncooled detector, ensuring crisp detail retention even in severe meteorological conditions such as heavy rainfall, dense fog, or smoke.
Technical Specifications
| Parameter | Value |
| Model | GUIDE TU650L 3.0 |
| Sensor Resolution | 640×512 pixels |
| Pixel Pitch | 12 µm |
| Spectral Range | 8–14 µm |
| Thermal Sensitivity (NETD) | ≤ 20 mK |
| Objective Lens | 50 mm, F1.0 |
| Optical Magnification | 3.9x |
| Digital Zoom | 1x–8x (smooth, total magnification 3.9x–31.2x) |
| Field of View (FOV) | 8.8° × 7.0° |
| Display | 0.39-inch AMOLED, 1024×768 pixels |
| Integrated Laser Rangefinder | Yes, measurement distance up to 1000 m |
| Rangefinder Accuracy | ±1 m |
| Human Detection Range | Up to 2000 m |
| Mount Type | Standard 30 mm rings |
| Power Supply | Internal battery + removable 18650 battery |
| Battery Life | Up to 12 hours |
| Ingress Protection | IP67 |
| Operating Temperature Range | −30°C to +50°C |
| Dimensions | 410 × 88 × 72 mm |
| Weight | 990 g |
Commentary / Comments
The core advantage of the Thermal Imaging Scope GUIDE TU650L 3.0 50mm lies in its thermal sensitivity rating of NETD ≤ 20 mK coupled with a high-definition 640×512 sensor, registering subtle temperature gradients to render high-contrast images against cold foliage or background terrain. The integrated laser rangefinder operates up to 1000 meters, allowing immediate range calculation for accurate trajectory holds. Its dual-battery system utilizes both an internal cell and an external 18650 battery, yielding up to 12 hours of continuous operation in field conditions.
Constructed from heavy-duty aluminum alloy rated to IP67 ingress protection, the housing withstands water immersion and heavy recoil impulse from large-caliber systems. Mounting uses conventional 30mm scope rings, maintaining natural eye alignment and cheek weld similar to standard day optics. Onboard Wi-Fi and video recording features allow operators to capture engagements and stream real-time thermal feeds directly to mobile devices.
Target Audience / Suitable For
Designated marksmen and special operations personnel operating under complete darkness and extended engagement distances gain a reliable long-range thermal solution capable of detecting targets up to 2000 meters away. The integrated laser rangefinder delivers instantaneous distance data, significantly reducing time-to-target and enabling immediate elevation hold adjustments. Full IP67 weather sealing and an extended operating thermal envelope ensure dependable operation through severe weather, rain, and cold environments. The extended dual-battery power supply guarantees reliable continuous runtime throughout long nocturnal deployments.
Marksmanship and specialized tactical instructors conducting night engagement drills can leverage the device as an instructional thermal module by streaming live thermal feeds over Wi-Fi to student tablets or monitors. The high-resolution AMOLED display and thermal sensor resolution provide clear visual feedback for illustrating target signatures under varying environmental conditions.
Mobile observation and perimeter defense teams operating at night benefit from a versatile sighting system that fits standard 30mm ring mounts without needing specialized rail adapters. Smooth digital magnification and a balanced field of view allow operators to transition seamlessly from wide-area surveillance to high-magnification target inspection.