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Armasight Helios 336 3-12x42 Thermal Imaging Bi-ocular

    • 336 3-12x42 (9 Hz) TAT179BN4HELI31
    • € 4,992.00

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    • 336 3-12x42 (30 Hz) TAT173BN4HELI31
    • € 4,992.00

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    • 336 3-12x42 (60 Hz) TAT176BN4HELI31
    • € 5,242.00

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The Armasight Helios is the latest and most technologically-advanced family of thermal imaging bi-oculars for the sporting, law enforcement, and military markets. The Helios product line is based on the latest FLIR Tau 2 VOx microbolometer core, and is composed of different models – each optimized for performance, price, and state-of-the-art technology that is suitable for a variety of uses and missions. The Helios is a solid state, uncooled, long-wave infrared, magnified, dedicated handheld thermal imager intended for day and nighttime missions.
The 24/7 mission capability is only one of the strengths of the Helios line. The thermal imaging technology also allows you to detect targets by cutting through snow, dust, smoke, fog, haze, and other atmospheric bscurants. Unlike the use of laser targeting or near-infrared illumination to augment night vision equipment, the Helios thermal imager is extremely difficult to detect with other devices, as it emits no visible light or RF energy.
The Helios is available in different versions, with optical magnifications ranging from 2x to 5x. Helios series also provides up to 8x digital zoom for models based on 640x512 cores and up to 4x digital zoom for models based on a 336x256 core.
The Helios is powered by two CR123A (2×3V) batteries. The Extended Battery Pack or 6VDC/ 600mA power source can also be used to power the Helios. The Helios can be controlled by a wireless remote control.

Armasight Helios Video

Special User-Adjustable Imaging Tools
Active Contrast Enhancement (ACE) – a digital “Contrast” correction that allows for a smart scene optimization based on dynamic adjustments where a variety of contrast levels occur depending on relative scene temperature. Second Generation Digital Detail Enhancement (DDE) – a “Sharpness” correction that is digitally enhances the picture to present clearer imagery, significantly improves edge sharpening and further reduces image noise. Smart Scene Optimization (SSO) – a fine-tuning computational correction that significantly improves an overall visual acuity for targets that have thermal signatures similar to a surrounding background. Automatic Gain Control (AGC) – a “Gain” correction that used to automatically adjust the gain to an appropriate range, the weaker the image signal, the stronger the gain.
User-Controlled Manual Non-Uniformity Correction/Flat-Field Correction (UCMNUC/FFC). There is a mechanical shutter between the camera sensor and the lens. This shutter is used to perform a non-uniformity correction (NUC) also known as flat-field correction (FFC. During FFC, the shutter presents a uniform temperature source to each detector element in the array. While imaging the flat-field source, the camera updates the offset correction coefficients, resulting in a more uniform image after the process is complete. All Prometheus HD models allow for user to manually trigger or interrupt scheduled UCMNUC/FFC function. Silent Shutterless NUC ™ (SSN) – In addition to user controlled manual NUC/FFC all Prometheus HD models employ a digital supplemental non-mechanical flat-field correction that allows to extend the periods between mechanical shutter events and to further reduce image noise. SSN is always ON enhancement.


  • Multiple versions with optical magnifications ranging from 2x to 5x
  • High-performance thermal imaging camera
  • Lightweight and robust design
  • Easy to operate
  • Manually adjustable eyepiece and objective lens
  • Real-time display

    • Digitally controlled features:

    • Palette
    • Enhancement
    • Settings
    • Display Brightness
    • Electronic Magnification
    • User-Controlled Manual Non-Uniformity Correction/ Flat-Field Correction (UCMNUC/ FFC)
  • Current operational state information display (battery status, active profile, palette setting)
  • Wireless remote control
  • Analog video input and output (NTSC/PAL)
  • Powered by two standard CR123A batteries
  • Power input capability
  • Digital video recorder (optional)
  • Serviceability under severe conditions
  • Filled with dry nitrogen to prevent internal fogging
  • Water and Fog-Resistant / Waterproof (optional)t
  • Limited 3-year warranty
  • 10-year warranty on FLIR detector
  • Made in the USA


    • Refresh rate

    • 9 Hz / 30 Hz / 60 Hz

    • Magnification (NTSC/PAL)

    • 2.8x / 3.4x

    • Objective lens type

    • Germanium

    • Type of focal plane array

    • FLIR Tau 2

    • Pixel array format

    • 336×256

    • Pixel size

    • 17 μm

    • Display type

    • AMOLED SVGA 060

    • Pixel display format

    • 800x600

    • Display brightness

    • Discretely Adjustable to 8 Levels

    • Turn-on time

    • 3 sec

    • Digital zoom

    • 1×, 2×, 4×

    • Image palettes

    • White Hot, Black Hot, Fusion, Rainbow, Globow, Ironbow1, Ironbow2, Sepia, Color1, Color2, Ice-Fire, Rain, and OEM

    • Analog input and output format (resolution)

    • PAL (768×574 pixels)*/ NTSC (640×480 pixels)

    • Video recording

    • Optional Digital Video Recorder with SD card slot

    • Remote control

    • Wireless

    • Active Contrast Enhancement (ACE) - “CONTRAST”

    • Yes

    • Second Generation Digital Detail Enhancement (DDE) – “SHARPNESS”

    • Yes

    • Smart Scene Optimization (SSO) – “SMART SCENE”

    • Yes

    • User-Controlled Manual Non-Uniformity Correction/ Flat-Field Correction (UCMNUC/ FFC)

    • Yes

    • Silent Shutterless NUC ™ (SSN)

    • Yes

    • Objective focal length

    • 42 mm

    • Objective F-number

    • F/1.1

    • FOV

    • 7.8° x 5.9°

    • Exit pupil diameter

    • 14 mm

    • Eye relief

    • 16 mm

    • Focus method

    • Manual

    • Range of focus

    • 5m to inf.

    • Diopter adjustment

    • Manual

    • Diopter adjustment range

    • ±5 diopter

    • Battery

    • Two CR123A 3V Lithium batteries or CR123 type rechargeable batteries with voltage from 3.0V to 3.7V (2)**

    • Battery life at 20 °C (68 °F)

    • up to 4 hr (optional up to 12 hrs)

    • Extended battery pack

    • Two 18650 rechargeable batteries (3.7V), four CR123 rechargeable batteries with voltage 3.7V max, or four standard CR123A 3V Lithium batteries (operational time up to 8 hr)

    • External power supply

    • 6VDC / 600 mА

    • Operating temperature

    • -40°C to +50°C (-40°F to +122°F)

    • Storage temperature

    • -50°C to +70°C (-58°F to +158°F)

    • Environmental rating

    • Water and Fog-Resistant / Waterproof (optional)

    • Overall dimensions

    • 238 × 100 × 62 mm / 9.4 × 3.9 × 2.4 in

    • Weight

    • 0.8 kg / 1.8 lbs

    • Warranty

    • 3 years (10 years on FLIR detector)

    • All data subject to change without notice.

Included Accessories

Instruction Manual with Warranty card
Two Lithium Battery
Picatinny adapter for AWReC
Video Cable
Advanced Wireless Remote Control
Lens Tissue
Battery Cassette
Soft Carrying Case (thermals)

Optional Accessories

Platform Ring

Platform Ring

Extended Battery Pack

Extended Battery Pack

Tripod with a Grip

Tripod with a Grip

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