• Temperature ranges
    • 212 to 1112°F (3MH)
    • 302 to 1832°F (3MH1)
    • 392 to 2732°F (3MH2)
    • 482 to 3272°F (3MH3)
  • 1ms response time
  • 2.3μm spectral range
  • Optical resolution
    • 100:1 (3MH)
    • 300:1 (3MH1-3MH3)
  • 0.1 to 1.1 emissivity
  • 100mA max current draw
  • 8 to 36VDC power supply
  • IP65 NEMA-4 front mountable
    • At vacuum processes up to 10–3mbar
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What's in the Box

  • Mounting nut
  • 3m head cable
  • Electronic box with LCD display
  • Programming keys
  • Manual


The Optris CT XL 3M infrared thermometer has an integrated filter to block against laser radiation for measuring the temperature of laser processing applications such as laser welding of metals and plastics or in laser soldering. The quick 1ms response time allows very fast processes to be monitored. The short 2.3μm spectral range reduces errors when taking measurements on materials with unknown emissivity. The CT XL 3M is available in temperature ranges from 212 to 3272°F and can function in temperatures up to 185°F without additional cooling.

Selectable analog outputs and multiple digital interfaces offer high variability. The CT XL 3M features peak hold, valley hold, average, and an extended hold function with threshold and hysteresis, all field configurable with the USB programming kit (ACCTUSBK). Field selectable analog output options include: 0/4-20mA, 0-5 and 0-10 V, type K or J thermocouples, and alarm. Optional USB, RS485, RS232 interface, 2 optically isolated relay outputs, CAN-Bus, Profibus DP, and Ethernet available with plug in options.

The Optris Compact Connect temperature analysis software is available as a free download, and is necessary to document and analyze temperature measurement data. It is compatible with all netbooks, notebooks, and PC systems via Windows XP, Windows Vista, Windows 7 and 8.