Your search for "ph electrode" revealed the following:

Fluke 717 Pressure Calibrator for pressure and 4–20 mA process calibration
Fluke 717 Pressure Calibrator
$1,691.00
No reviews
Fluke TP165X Remote Control Probe
Fluke 1555 FC 10 kV Insulation Tester for high voltage insulation testing
Fluke 1555 FC insulation tester for 10 kV electrical insulation resistance testing
Fluke 805 FC Vibration Meter for machine health and bearing condition monitoring
Fluke 805 FC Vibration Meter
$1,270.00
No reviews
Endress+Hauser Condumax CLS13 Conductivity Sensor
Endress+Hauser Condumax CLS13 Conductivity Sensor
Endress+Hauser Memosens CCS55E free bromine sensor
Fluke 772 milliamp process clamp loop meter for 4–20 mA process signal measurement
Fluke 772 4–20 mA clamp loop meter for in-circuit measurement, sourcing and simulation
Endress+Hauser QWX43 Fermentation Monitor
Endress+Hauser Liquiphant FTL64 level switch
Liquiphant FTL64 high temperature level switch