Your search for "ph electrode" revealed the following:

Endress+Hauser Proline Prowirl O 200 high-pressure vortex flowmeter for steam and gas measurement
Fluke 771 milliamp process clamp meter for 4–20 mA signal measurement
Fluke 771 4–20 mA clamp meter for non-invasive process loop troubleshooting
Endress+Hauser LPGmass D8EB LPG Coriolis flowmeter for refueling and distribution applications
Endress+Hauser Flowfit CPA240 flow assembly
Endress+Hauser CPA240 pH ORP flow assembly
Yokogawa AXG1A ADMAG TI Remote Transmitter for electromagnetic flow meter systems
Yokogawa AXG1A Remote Transmitter connected with ADMAG AXG magnetic flow meter
Yokogawa ROTAMASS Coriolis Mass Flow Meter for accurate industrial mass flow measurement
Yokogawa ROTAMASS Total Insight Coriolis Mass Flow Meter family for industrial flow measurement applications