thermoMETER CT ratio

thermoMETER CT ratio

Order Catalog


Glass fiber 2 color ratio thermometer for extreme temperature measurements. The ratiometric principle minimizes measurement errors caused by intensity change (e.g. contamination due to dust, fumes..), low emissivity and partial spot size coverage of the target.


  • Measuring ranges (°C): 700 to 1800
  • Optical resolution 40:1
  • Spectral range 0.7 to 1.1µm
  • Insensitive to changes of the emission, due to the ratio principle
  • Fiber optics, therefore passive sensor head
  • Single- or two-channel use
  • Resistant to electromagnetic influences
  • Very short acquisition time of 5 ms
  • Insensitive to dust or steam
  • Up to 250°C ambient temperature without cooling
  • Output options: 0/4 - 20mA, 0 - 5/10V, USB, RS232, RS 485, CAN, Profibus DP, Ethernet