Single-Wavelength Temperature Sensor


Single-Wavelength sensors provide the average temperature of the measured target area. Short wavelength sensors are recommended to reduce or eliminate errors due to emissivity variation.  They are offered in a variety of configurations with a wide selection of temperature ranges, optics, and spectral response options.  The PRO 42 and 52 models feature a unique auto null design that enables more accurate measurements with short-wavelengths at low temperatures.

  • A Constant emissivity with an unobstructed view of the target (all temperatures)
  • Low temperature measurements of low-emmisivity materials


  • Temperature Limits of –50 – 4500 deg F (-45 – 2500 deg C)
  • Accurate, reliable, repeatable measurements
  • Wide Selection of temperature ranges and spectral response options
  • Infrared filtering for glass, plastic, and flame insensitivity
  • Quick and easy to install with 2-wire loop powered design
  • Low cost, compact, and rugged designs
  • Variety of configurations and accessories


These two-wire infrared temperature temperature thermometers can be used for temperature monitoring or process control with applications involving most common materials. They are designed to provide high performance and low maintenance operation in demanding industrial environments. Typical applications include:

  • Steel
  • Heat Treating
  • Rotary Kilns
  • Glass
  • Petrochemical
  • Paper
  • Plastics