ELF-FB20 (Jerry-FB 2.0) Fusion Night Vision and Thermal Binocular

The ELF-FB20 is a dual-spectrum fusion binocular combining analogue image intensification with a 640 x 512, 12 micron thermal sensor. ELF-FB20 is the model shown on the supplied product literature. "Jerry-FB 2.0" is retained as a familiar market reference for comparison; it is not presented as an InfiRay manufacturer designation.

Preparation time: Please allow approximately one week before dispatch for configuration, tube installation where applicable, functional inspection, testing and order preparation. This is preparation time before dispatch, not a one-week delivery promise.

Choose your configuration

• Housing and thermal core only: supplied without image intensifier tubes. Two compatible 10160- or 11769-format tubes are required for complete analogue night vision and fusion operation.
• NNVT5 GEN2+ white phosphor: complete system with two NNVT5 white phosphor tubes.
• NNVT Gen 3 green phosphor: complete system with two NNVT Gen 3 green phosphor tubes.
• NNVT Gen 3 white phosphor: complete system with two NNVT Gen 3 white phosphor tubes.

Individual tube specifications can vary. Contact Kaelor Works before ordering if you require a particular minimum FOM or other measured tube specification.

Analogue and thermal fusion

The system combines the natural scene detail of analogue night vision with thermal detection. Selectable viewing functions include image-intensified night vision and thermal highlight or outline fusion, allowing the display to be adapted to changing observation conditions.

Key specifications

• Model: ELF-FB20.
• Magnification: 1x.
• Thermal detector: 640 x 512, 12 micron, uncooled VOx.
• Thermal field of view: 24 x 20 degrees.
• Night vision field of view: 40 degrees.
• Compatible tube formats: 10160 and 11769.
• Objective lens: 27 mm, manual focus from approximately 0.25 m to infinity.
• Eye relief: 25 mm.
• Interpupillary adjustment: 55-72 mm.
• Diopter adjustment: -4D to +2D.
• Display: 1280 x 1024 OLED.
• Integrated digital compass and GPS positioning.
• High-light protection and individual-pod automatic power-off.
• Power: external holder for two 18650 cells.
• Manufacturer-listed runtime: up to 8 hours in fusion mode or up to 80 hours in night vision mode, depending on conditions.
• Dimensions: approximately 105 x 110 x 87 mm.
• Main-unit weight: approximately 530 g, depending on configuration.
• Ingress protection: IP67.
• Manufacturer-listed operating range: -40 to +50 degrees C.