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FMX HT-640

FMX HT-640

High Temperature Infrared Camera

  • The ICI FMX HT-640 is a 768 x 576 temperature measurement device capable of imaging metals including molten steel.
  • It delivers sharp and clear images even at high operating temperatures making it perfect for monitoring welds, imaging the sun, performing research, or any application where precision, high temperature measurements greater than 1500°C (2732°F) are required.*
  • The FMX HT-640 monitors equipment in real time and warns of a
    failure before it happens, saving money by preventing equipment damage, reducing production downtime, and keeping personnel safe.
  • * The FMX HT-640 has been used to measure temperatures up to 3000°C (5432°F)

FMX HT-640
  • red star icon Measure surface temperature of molten metals
  • red star icon Provides measurement corrections for emissivity, ambient temperature, distance, and relavtive humidity.
  • red star icon Adaptable units, language, and date & time
  • red star icon Connects to USB devices
  • red star icon 8 color palettes


  • Pixel Resolution: 768 x 576
  • Accuracy: ± 2°C (± 3.6°F) or 2% of reading
  • Temperature Range:
    650°C to > 1500°C (1202°F to > 2732°F)*
  • Operation Range: -20°C to 50°C (-4°F to 122°F)
  • Storage Range: -40°C to 70°C (-40°F to 158°F)
  • Pixel Pitch: 15 µm
  • FOV: 22° x 17.6°
  • IFOV: 0.6 mrad
  • Focal Length: 25 mm
  • Focus: fixed
  • Spectral Band: 0.5 μm to 0.54 μm
  • Frame Rate: 30 Hz
  • Shock/Vibration: 25 G/2 G
  • Dimensions (without lens):
    152 mm x 101 mm x 76 mm (L x W x H ± 0.5 mm)
    (5.98” x 3.98” x 2.99” (L x W x H ± 0.02”))
  • Power: 5V DC
  • Weight (without lens): < 500 g (1.1 lbs)
  • Interface: RJ-45 Ethernet
  • Image Polarity: monochrome
  • IP Rating: IP65
  • Rolling Shutter


Options / Accessories

  • Optional: 1/4”-20 tripod
  • 8 mm Fixed focus lens (68.8° x 55° FOV, 1.875 IFOV)
  • 12 mm Fixed focus lens (45.8° x 36.7° FOV, 1.25 IFOV)
  • 50 mm Fixed focus lens (11° x 8.8° FOV, 0.3 IFOV)
  • 75 mm Fixed focus lens (7.3° x 5.9° FOV, .02 IFOV)


  • Image molten & solid metals, including steel
  • Molten glass & ceramics
  • Welding
  • Solar imaging
  • Laser imaging
  • Light bulb filaments
  • Scientific research
  • High temperature applications

Superior quality & a legacy of excellence

Infrared cameras have been made important to the world, as of late. But they’ve been our focus since 1995. We’re a global force in protecting people through advanced technology.

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