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Ruggedized Transmission Dip Probes

From $1,813.00

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Our industrial-grade transmission dip probes can be used in environments with pressure limits of up to 250 psi and at temperatures up to 300 ºC. The robust stainless steel 1/2″ probe tip is ideal for integration into process lines, and mates easily to our spectrometers and light sources for measurement of absorbance and transmission in solutions.


  • Probe concept -- light is directed via one fiber through the open path, then is reflected by a mirror and redirected back to a receive fiber that returns the light to the spectrometer
  • Variable pathlength -- adjust the pathlength of the tip (2 mm to 50 mm) for solutions of different concentrations
  • Convenient fixturing -- probe fits into a standard 1/2″ Swagelok fitting for installation into a pipe or reactor



Subject to change depending on model type


Fiber Core Size:
300 µm
stainless steel over Teflon tubing
2 m
Probe Ferrule Diameter:
12.7 mm (1/2″)
Wavelength Range:
200nm - 1.1μm
1 meter from the end of the probe
SMA 905
2, 5, 10, 25, or 50 mm
Physical Resistance:
250 psi
Probe Ferrule Length:
127 mm without probe tip
Probe Ferrule Material:
Stainless steel outer sleeve
Temperature Limit:
300º C for probe body

Measurement techniques