These On-Line pH electrodes feature an Ag/AgCl double-junction and a built-in thermistor. They are designed for use with the pH monitors 2001 and 2002.

AQUA 10
- Ideal general-purpose electrode for the harshest On-Line or waster water samples
- Rugged industrial housing for On-Line, pipe insertion or submersion (dip system) applications
- CONTACT reference system with polymer reference electrode: Direct contact with sample through an open-hole junction

AQUA 30
- Flat surface sensor for samples containing oil, grease or particulates
- pH electrode screws into AQUA3H electrode housing for easy cleaning and replacement
- HYDRAPERM reference system with polymer reference electrode with large rugged reference junction
- Suitable for harsh On-Line samples that fluctuate in temperature and pressure