NVECTECH DEFENDER 325 Thermal Rifle Sight

25mm F0.8, 1500m detection, 384×288px VOx sensor (≤20mK), 50Hz, 1024×768 AMOLED. 2.4x optical + 5x digital zoom. 18+ h battery, USB Type-C. Picatinny rail standard. GPS/compass/azimuth/altitude/temperature. AI rangefinder + ballistic calculator + 5 zeroing profiles.

DEFENDER 325 vs. DEFENDER 319 – Step Up

319 = 19mm, 1200m detection. Entry-level compact scope. Standard hunting ranges.

325 = 25mm, 1500m detection. 250m additional range. 2.4x vs 319's 1.8x magnification. Better optical gathering for lower-light performance. Target for hunters outgrowing 319 capability but not needing 335's 2000m extreme range.

1500m Detection – Extended Reconnaissance

1500m thermal detection (0.3m human body). 1000m clear species/behavior identification. Engagement advantage: 325's 1500m detects targets 319's recognition range (800m) cannot clearly identify. Scout from greater security distance before commitment to closer approach.

Optical Advantage Over 319

25mm objective 1.3× larger than 19mm. Result: 20% more light gathering. Translates to superior low-light thermal image clarity. Dusk/dawn hunting improvement measurable. 2.4x base magnification (vs 319's 1.8x) provides initial target detail advantage during acquisition phase.

325 bridges gap between entry-level compact (319) and professional extended-range (335). 250m detection advantage over 319 without 335's weight penalty (620g vs 650g).

Ballistic Automation – Identical to 319

5 independent zeroing profiles enable multi-weapon/ammunition configurations. Ballistic calculator identical implementation: input specs once, auto-calculates holdover per distance. AI rangefinder ±50m accuracy at 1500m. All core tactical features identical to 319 platform.

Thermal Sensor Integration

GPS, compass, azimuth, altitude, temperature, gyroscope—complete sensor stack identical to 319. Military-grade integration. CSFBC function (engagement from covered positions) included. GEO Dot display. OSD recording captures reticle + calculations + rangefinder data.

RAV Technology – Automatic Recoil Compensation

Detects impulse pattern, automatically compensates zero after each shot. Eliminates "return to zero" verification. Maintains stable zero across multiple recoil cycles.

Picture-in-Picture Display

Primary thermal image: Full hunting area scan. Magnified inset: 3x center magnification for precision aiming. Toggle without losing thermal image. Scout wide, zoom tight, return to wide—complete situational control.

Battery & Field Operations

18+ hours continuous (proven rating). USB Type-C charging accepts standard phone chargers/power banks. Field-replaceable 18650 cells (standard retail). 0-100% battery indicator.

Video & Recording

384×288px 50Hz thermal video (20-30 hours on 64GB storage). HDMI simultaneous output for external recorders. USB export without proprietary software. Complete engagement documentation capability.

Specifications

DEFENDER 325 – Extended Range Upgrade

Step-up from 319 entry-level. 1500m detection covers extended hunting applications. Improved optical gathering (25mm vs 19mm) enhances low-light performance. 2.4x base magnification provides better initial target detail. Maintains all tactical features: ballistic calculator, 5 profiles, AI rangefinder, sensor integration, RAV auto-compensation.

Positioned between 319 (compact entry) and 335 (professional extreme). 325 represents optimal balance between capability and practicality for majority field applications.

Professional Optics Split – Authorized NVECTECH dealer. Setup guidance, extended-range consultation, fast EU delivery.