IntelliCAL pH Electrodes 

Including New RED ROD Technology!

Hach IntelliCAL RED ROD pH electrodes deliver all the advantages of our existing IntelliCAL electrodes, with the addition of faster response times and superior stability – resulting in even more efficient and accurate measurements!

RED ROD technology delivers measurements that are fast, accurate and reproducible. Symmetry between internal and external RED ROD reference elements ensures that the iso pH is the same as the zero pH, providing highly reproducible results and a fast, accurate response, even in samples with fluctuating temperatures. RED ROD technology also provides a stable signal by protecting the reference elements from light interference, and the saturated KCl salt-bridge aids in creating a stable liquid junction potential.

RED ROD technology is reliable, even in challenging samples - RED ROD encapsulation of reference elements means no silver ions and less risk of clogged junctions. The RED ROD reference system also enables accurate measurements over a broader temperature range than standard electrodes.

All IntelliCAL electrodes store calibration data on the probe itself –providing superior traceability and lowering the likelihood of user errors. It also allows the electrodes to be switched between benchtop and portable meters without the need for recalibration – ideal for applications such as distribution system monitoring where the control and accuracy of a laboratory calibration is desired.


Red-Rod

RED ROD IntelliCAL pH Electrodes

Part Number Application Electrode Body Reference Junction Ranges
NEW  PHC70501 General Purpose Glass RED ROD Saturated KCI (Refillable) Porous Pin 0-14 pH
-10 to 100°C
NEW  PHC705A01 High-Alkalinity Glass RED ROD Saturated KCI (Refillable) Porous Pin 0-14 pH
0 to 100°C
NEW  PHC72501 General Purpose & LIS (Low Ionic Strength) Glass RED ROD Saturated KCI (Refillable) Annular Ring 0-14 pH
-10 to 100°C
NEW  PHC73501 Dirty Samples (eg. Untreated Surface Water) Glass RED ROD Saturated KCI (Refillable) High-Flow Annular Ring 0-14 pH
-10 to 100°C
NEW  PHC74501 Challenging Samples (eg. Wastewater Influent, Emulsions) Glass RED ROD Saturated KCI (Refillable) Sleeve 0-14 pH
-10 to 100°C
NEW  PHC72901 Surface Measurements Glass RED ROD Saturated KCI (Refillable) Flat
Annular Ring
0-12 pH
0 to 100°C
















Standard IntelliCAL pH Electrodes

Part Number Application Electrode Body Reference Junction Ranges
NEW  PHC80501 General Purpose Glass Ag/AgCl (Refillable) Porous Pin 0-14 pH
0 to 80°C
PHC20101 General Purpose Epoxy Ag/AgCl
(Sealed)
Porous Pin 0-14 pH
0 to 80°C
PHC101 Challenging Samples (eg. Wastewater) Epoxy Gel
(Sealed)
Open 2-14 pH
0 to 50°C
PHC281 General Purpose & LIS (Low Ionic Strength) Zeonor Ag/AgCl (Refillable) Porous Pin 0-14 pH
0 to 50°C
PHC30101 General Purpose Zeonor Ag/AgCl (Refillable) Porous Pin 0-14 pH
0 to 50°C
NEW  PHC10801 Semi-Solid Measurements (Puncture Tip) Stainless Steel Ag/AgCl (Sealed) Porous Pin & Open 2-12 pH
0 to 60°C