AGM Secutor LRF-C 75-640 Thermal Image Clip-On Scope

Transform Your Hunt With Professional Thermal Rangefinding

AGM Secutor LRF-C 75-640 Thermal Image Clip-On Scope delivers uncompromising long-range detection when every yard matters. At 2 AM, a cautious coyote moves through thick brush 600 yards out. Your daylight scope sees nothing, but the Secutor LRF-C makes that predator light up like a beacon. The integrated laser rangefinder instantly confirms 587 yards for a clean, ethical shot—the reality for hunters who refuse to compromise when darkness falls.

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Built for long-range precision and serious night hunters. Predator hunters engaging coyotes beyond 400 yards, law enforcement requiring target identification in total darkness, and tactical professionals in adverse weather. The 75mm lens and 640 resolution deliver exceptional long-range clarity with laser rangefinder precision.

It may not suit brush hunters at distances under 200 yards, preferring wider fields of view; weight-conscious shooters on foot pursuits; or budget buyers seeking value in 384-resolution alternatives. Hunters rarely exceeding 300 yards won't fully utilize the premium 75mm advantages.

640×512 High-Resolution Thermal Sensor — 12-micron pixel pitch with sub-20mK sensitivity reveals the smallest temperature differences, enabling you to detect heat signatures through fog, darkness, and dense vegetation where traditional optics fail completely

75mm F/1.2 Germanium Objective Lens — Industry-leading lens size captures maximum thermal energy for exceptional 3,800-yard detection range, allowing positive target identification at distances that keep you safe and ethical in long-range predator control scenarios

Integrated 1000-Meter Laser Rangefinder — Instantly measure exact target distance with ±4-meter accuracy, eliminating guesswork on holdover calculations and ensuring precise shot placement, whether engaging coyotes at 600 yards or confirming safe backstops

Quick-Detach Clip-On Versatility — Mounts in seconds to your existing day scope without re-zeroing, transforming any rifle into a thermal-capable system while maintaining your familiar reticle and shooting position for seamless day-to-night transitions

Professional-Grade Durability — IP67 waterproof rating withstands submersion to 1 meter, operates reliably from -30°C to +55°C (-22°F to +131°F), and handles heavy recoil with confidence-backed by AGM's 5-year transferable warranty for long-term peace of mind

50Hz Refresh Rate & 1024×768 OLED Display — Smooth motion tracking with zero lag captures fast-moving predators in crisp detail on a high-contrast OLED screen, while onboard video/audio recording documents every hunt through the integrated 16GB storage system

Strengths: The 75mm lens dominates long-range detection beyond 600 yards with exceptional thermal clarity. The integrated rangefinder eliminates extra gear, while sub-20 mK sensitivity excels in humidity. IP67 waterproofing, CR123A batteries, and quick-detach mounting maintain zero across rifles.

Limitations: Weight at 2.2 pounds suits magnum rifles, but challenges lightweight carbines on foot. The 75mm trades close-range field of view for distance performance under 200 yards. The six-hour battery needs external power for all-nighters, and premium pricing is best for hunters shooting beyond 300 yards.

AGM Secutor LRF-C 75-640 Thermal Image Clip-On Scope Highlights

Thermal Scope With Rangefinder - Manual

640 Thermal Imaging - Data Sheet

Can the AGM Secutor LRF-C maintain zero when removed and remounted?
Yes. The quick-detach mount system returns to the same position consistently, maintaining your zero when switching between rifles or removing for storage without requiring re-zeroing each time.

What magnification day scopes work best with this thermal clip-on?
The Secutor LRF-C performs optimally with day scopes ranging from 1× to 10× magnification. Higher-magnification day scopes may show vignetting or a reduced field of view.

How does the 75mm lens compare to 50mm alternatives for hunting?
The 75mm lens collects significantly more thermal energy, extending your detection range by approximately 30-40% over 50mm models, critical for long-range predator identification beyond 500 yards.

Does the laser rangefinder work in complete darkness?
Absolutely. The Class 1 laser rangefinder operates independently of visible light, measuring distances accurately to 1000 meters in total darkness, fog, or adverse weather conditions.

Can I use this clip-on as a handheld thermal monocular?
While primarily designed as a clip-on, the Secutor LRF-C can be handheld for scanning, though it lacks a dedicated eyepiece for extended handheld observation comfort.

What battery life can I expect during a full night hunt?
Four CR123A batteries provide 6+ hours of continuous operation. Connecting an external USB-C power bank extends runtime significantly for all-night vigils or professional surveillance operations.

Is the 640×512 resolution worth the premium over 384 models?
The 640 resolution provides noticeably sharper image quality and superior target identification at extended ranges—essential for ethical shot placement beyond 400 yards, where 384 models show limitations.

How does the weather affect thermal imaging performance?
The sub-20 mK sensitivity excels in humid conditions where other thermal sensors struggle. Extreme temperature differentials (very hot or cold days) can reduce contrast but rarely prevent effective target detection.