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Photometric Electrodes HI90060x


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For many titrations, a potentiometric determination of the equivalence point is simply not possible. In these cases, the use of a photometric probe for the optical determination of an endpoint during volumetric analysis is preferred. Hanna Instruments introduces HI90060x Series for when a color change is still the best solution.
  • Available in 4 wavelengths, (525nm green, 625nm red, 590nm yellow, 470nm blue)
  • Less maintenance than standard electrodes
  • Ideal for for turbidimetric and color-indicated titrations


Line of Specialized pH Testers


Across the Spectrum

Adding to our titration line, these probes are available in 4 different wavelengths from 470 nm to 625 nm. The HI90060X family of photometric probes use the principle of absorbance at a specific wavelength to identify the equivalence point of a titration with the use of a color indicator. 


Specialized Construction

A glass construction minimizes chemical compatibility issues. The stainless steel shield within the glass blocks out ambient light and protects against any grounding loop current that may result in progressive damage of the probe.


Made to Fit 

With a 12 mm diameter and 120 mm standard insertion length, these photometric electrodes fit easily into electrode holders. These probes have a universal BNC connector that is used as a potentiometric input on Hanna titrators and autosamplers.

HI90060X Series Photometric  Electrodes


Reflective Measurement

Each probe has a LED at a specific wavelength that shines light through the sample and is reflected back by a platinum mirror sealed in the glass. The reflective measurement has a fixed path length and allows for high color sensitivity in a compact design.


Less Maintenance

With the photometric probe there is no fill solution to change in order for it to be compatible with a non-aqueous sample and there is no pH sensor to foul.


For Colorimetric Reactions

The use of a photometric probe for potentiometric titration can be used for a variety of complexometric titrations. The photometric probe is also ideal for non-aqueous titrations.


Photometric  Electrodes - HI90060x Series

HI900601 525 nm  HI900602 625 nm  HI900603 590 nm  HI900604 470 nm 
525 nm
625 nm
590 nm
470 nm



mV Range 10 to 1100 mV 
Wavelength / LED color 

HI900601 @ 525 nm / green LED

HI900602 @ 625 nm / red LED

HI900603 @ 590 nm / yellow LED

HI900604 @ 470 nm / blue LED

Light Source LED
Measuring Cycle  LED pulsed at 1 kHz 
Light Detector  silicon photocell 
Sample Temperature 0 to 75°C (32 to 167°F)
Body Material  glass 
Body Length / Overall Length 122 mm / 200mm
Outer Diameter  12 mm
Connection BNC with 1.5 meter cable for connecting to titrator or autosampler
Power supply ps/2 connector for connecting to titration system
Environment 0 to 50°C (32 to 122°F)
Ordering Information Supplied with instruction manual and electrode quality testing certificate.