Long-Range Thermal Imager (LRTI)

With narrow- to wide-field-of-view options, the VZ-250 meets a wide range of mission requirements from long-range targeting to wide-area perimeter surveillance. The VZ-250 (LRTI) is widely deployed throughout the world securing borders and protecting critical infrastructure. The VZ-250 helps to defend ground troops in forward operating bases through programs including BETSS-C, TASS, C-RAM and FPS-2.

  • Tri-Field-of-View Infrared Sensor
  • Boresighted Visible Camera with 26x Zoom
  • Integrated Precision Positioning System

Product Details

The VZ-250 is a tri-field-of-view cooled thermal imaging system with an integrated 26x zoom visible camera. Mounted on a 360 degree Vector-50 pan-tilt system, this system offers precision pointing and stabilization at long range. The VZ-250 is available with a laser rangefinder and laser illuminator. This system is easily integrated into existing systems and provides easy-to-use push button interaction.

  • Tri-Field-of-View Infrared Sensor
  • Boresighted Visible Camera with 26x Zoom
  • Focal Plane Array Choices:
    • 320 x 256
    • 640 x 512 (with optional Long Life Cooler)
    • 640 x 480 (High Reliability Cooler Option)
  • Integrated Precision Positioning System
  • 2-Axis Gyro-Stabilization (Optional)
  • Integrated Controller and Joystick
  • Auto and Manual Focus
  • Laser Rangefinder (Optional)

General Dynamics designs and manufactures a full portfolio of high-performance cameras and camera systems that provide our customers the clarity, accuracy and reliability to capture the shot that matters and successfully complete their mission.

You may contact our customer service center by email, phone or fax.

Email:  ircamerasupport@gd-ms.com
Phone: 603-864-6294
Fax: 603-864-6250

24 Simon Street
Nashua, NH 03060

Our fundamental mission is to ensure the continued precision performance of your cameras in the field.

Our products and solutions play mission critical roles in some of the harshest environments across all domains. Customers depend on these maintenance services for their rugged reliability and performance in the field.

Our Customer Service operation works closely with users to maximize the, performance, reliability and up time of our mission critical imaging systems. We have established long term relationships with defense, homeland, commercial and international communities for logistics, support and depot.


VZ-250 Datasheet



View Document


System Specifications Serial Interface: RS-422Video Format: NTSC/PAL/Differential 


Power Requirements: 18-28VDC (direct to P/T), 100-240VAC or 12VDC (with DCU)

Environmental: Unit sealed and dry nitrogen backfilled

Front Element Defroster

Operating Temperature Range: -32° C to +60° C

Non-Operating Temperature Range: -40° C to +71° C

Controls: Controls available on a handheld joystick or through a PC via an RS-232/422 link

Proportional Pan and Tilt speed controls

Field of View and Focus Slaving: Visual/Thermal Field of View Switching

Focus (Auto/Manual)

Auto Scan with 10 tables of 10 userdefined presets, variable speed, dwell, and camera selection

Optional TCP/IP Interface

Weight: ~60 lbs (27 kg) (Pan/tilt head & sensors)


Visible Camera Characteristics Sensor: 1/4” IT CCD (Super HAD), Approx. 630k Pixels (NTSC), Approx. 740k Pixels (PAL)Field-of-View: Continuous 26X optical zoom, 42° to 1.6° 


Digital Zoom: 12X

Resolution: 470 TV lines NTSC (460 PAL)

Min. Illumination: < 2.0 lux (1/60 sec), 0.05 lux (1/4 sec)

Signal to Noise: > 50dB


Thermal Camera Characteristics Detector:
Option 1: 320 x 256
Option 2: 640 x 512 (with optional Long Life Cooler)
Option 3: 640 x 480 (High Reliability Cooler Option)Spectral Band: 3-5 μm 


Type: Motorized Remote Focus and Tri-Field of View 17/60/250 mm Optical System

f/#: 4

Field-of-View: Tri-Field-of-View (17/60/250mm)
Detector Option 1 & 2: 31.5° x 23.9° (Wide) 9.1° x 6.9° (Medium) 2.2° x 1.65° (Narrow) Detector

Option 3: 25.5° x 19.2° (Wide) 7.3° x 5.5° (Medium) 1.8° x 1.3° (Narrow)

Controls/Features: High Sensitivity Mode
Multiple Color Palettes
Inverse Polarity


Pan/Tilt Head Pan: 360° ContinuousTilt: ±60° 


Position Rate: Pan <0.1° to >300°/second, Tilt <0.1° to >300°/second