Thermal sight NVECTECH DEFENDER 319
NVECTECH DEFENDER 319 Thermal Rifle Sight
19mm F0.8, 1200m detection, 384×288px VOx sensor (≤20mK), 50Hz, 1024×768 AMOLED. 1.8x 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.
1200m Detection – Practical Reality
1200m detects thermal signature (0.3m human body). 800m clearly identifies species/behavior. Engagement reality: 1200m detection enables target confirmation from secure position. Close distance for actual shooting or use digital zoom. DEFENDER 319's 1200m more valuable for reconnaissance than direct engagement.
Picatinny Rail – Universal Standard
AR-15, AK-pattern, most modern rifles compatible. Direct installation, no adapters. NATO 20mm rail standard ensures universal fit. Eye relief 45mm typical rifle stock positioning.
RAV Technology – Automatic Zero Compensation
Detects recoil impulse. Automatically compensates scope zero after each shot. Eliminates traditional "return to zero" verification. Zero remains stable across multiple shots/recoil cycles.
5 Independent Zeroing Profiles
Profile 1: 100m zero, .308 Winchester, rifle #1
Profile 2: 300m zero, same cartridge
Profile 3: Different ammunition brand, rifle #1
Profile 4: AR-15 platform alternative weapon
Profile 5: Reserve test configuration
Instant mid-field profile switching. No recalibration required. Switch between weapons without zeroing uncertainty.
Ballistic Calculator Workflow
Setup (one-time): Input ammunition specs (bullet weight, velocity, ballistic coefficient). Save mounting height. Temperature/altitude automatic via sensors.
Engagement: Aim at target. Activate AI rangefinder. Distance calculated. Ballistic calculator displays red triangle (holdover correction). Aim triangle at vital zone. Fire.
Advantage: No external app, no manual math, decision made in seconds not minutes.
AI Rangefinder Accuracy
Thermal image analysis calculates distance based on target thermal intensity pattern. ±50m accuracy at 1200m (4% error). More precise at closer ranges (<5m error at 500m). Manual distance input available for verification/targets beyond range.
Picture-in-Picture Display
Primary image: Full thermal scan of hunting area. Magnified inset: 3x magnified center point (precise aiming). Toggle between views without losing thermal image. Scout wide area, zoom for precision, return to wide for situational awareness.
Military-Grade Sensor Integration
GPS: Waypoint marking kill locations/terrain hazards. Compass: Bearing to distant targets (team communication). Altitude: Automatic density altitude correction in ballistics. Temperature: Thermal calibration reference. Gyroscope: Prevents ballistic calculation during weapon instability—waits for stable platform.
GEO Dot: Geographic coordinates display on-screen. OSD Recording: Records reticle + calculations + rangefinder + waypoints. Complete engagement documentation for analysis.
Video & Recording
384×288px 50Hz thermal video (20-30 hours on 64GB storage). HDMI simultaneous output for external recorders. USB export without proprietary software. Post-mission review capability immediate.
18+ Hour Battery
Continuous tactical operation proven rating. USB Type-C charging (standard phone chargers/power banks). Field-replaceable 18650 cells (standard retail batteries, not proprietary).
Specifications
Parameter | Value |
Objective | 19mm F0.8 |
Detection Range | 1200m |
Recognition Range | 800m |
Sensor | VOx 384×288 |
NETD | ≤20mK |
Magnification | 1.8x optical + 5x digital |
Field of View | 13.8° × 10.4° |
Display | 0.39" AMOLED 1024×768 |
Eye Relief | 45mm |
Reticles | 7 types |
Reticle Colors | Black, white, yellow, blue, green, red, auto |
Rangefinder | AI thermal (±50m at 1200m) |
Ballistic Profiles | 5 independent |
Zeroing Adjustment | ±100 MOA per profile |






















