pH Calibration Services
We calibrate, verify, troubleshoot, and repair portable and benchtop pH meters, electrodes, analyzers, transmitters, controllers, and complete measurement loops. Choose on-site service for installed systems or send eligible equipment to our calibration lab.
MULTI-POINT pH CHECK
7.00 pH
BUFFER 4 • 7 • 10
SLOPE STABLE ✓
pH Reference Solutions
Offset • Slope • Temperature • Verification



FIELD & LAB EQUIPMENT / ELECTRODES, METERS, ANALYZERS & CONTROL LOOPS
pH instruments we calibrate and service.
Our technicians support electrodes, portable and benchtop meters, analyzers, transmitters, controllers, temperature compensation, wiring, configuration, and complete pH measurement loops—on site or through our mail-in lab when appropriate.
Portable and handheld pH meters
Laboratory and benchtop pH meters
Combination and differential electrodes
Temperature compensation and sensor cables
Analyzers, transmitters and controllers
Outputs, alarms and complete pH loops
LIVE pH VERIFICATION
7.00 pH
±0.5%
TRACEABLE STANDARD
BUFFER RESPONSE
VERIFIED
pH calibration for the complete measurement path—not only the display.
Our pH calibration service can include reference-buffer comparisons, electrode offset and slope response, temperature-compensation checks, analyzer or transmitter configuration, wiring, signal output, controller indication, and complete-loop behavior. Service may be completed on site or through our mail-in calibration lab for eligible equipment.
✓ Reference-buffer calibration and verification · ✓ Electrode response and temperature checks · ✓ On-site and mail-in options · ✓ Clear calibration documentation
Resolve slow response, drift, coating, damaged electrodes, or unstable indication.
Inspection, cleaning, troubleshooting, repair, and recalibration can restore dependable pH measurement—or clarify when electrode or instrument replacement is the practical option.


Dependable pH measurement supports treatment, quality, and process control.
We provide on-site and mail-in calibration options for pH equipment used across municipal water, wastewater, laboratories, quality operations, and industrial process systems.
Water & wastewater
Calibration for process monitoring, treatment control, discharge conditions, and systems where electrode condition affects operating decisions.
Laboratory & quality control
Verification for benchtop meters and electrodes used in sample testing, formulation, inspection, and quality decisions.
Industrial & chemical process
Calibration and troubleshooting for fixed probes, analyzers, transmitters, outputs, and complete control loops supporting consistent processes.
