The pHionics D-phi Series™

Reliable 4-20 mA differential sensors with built-in threads for inline or standpipe mounting.

Recommended for recirculating aquaculture systems, process control, hydroponics, and wastewater applications.

STs Series Dissolved Oxygen Water Quality Sensor and Transmitter

ORP (redox)

The pHionics STs Series™

Narrow, ultra low-maintenance 4-20 mA sensors with built-in temperature sensors. 

Recommended for long-term environmental monitoring.

pHionics STs Series pH Sensor/Transmitter

pH

+ Temperature

STs Series Conductivity Water Quality Sensor and Transmitter

Conductivity

+ Temperature

STs Series Dissolved Oxygen Water Quality Sensor and Transmitter

Dissolved Oxygen

+ Temperature

STs Series ORP Water Quality Sensor and Transmitter

ORP (redox)

+ Temperature

STs Series Spare Electrodes & Accessories

pHionics STs Series pH Electrode

pH

Spare electrode

Replacement STs Series Conductivity Electrode

Conductivity

Spare electrode

Replacement STs Series Dissolved Oxygen Electrode

Dissolved Oxygen

Spare electrode

Replacement pHionics ORP Electrode

ORP (redox)

Spare electrode

Replacement STs Series Conductivity Electrode

pHishGard™

Electrode Guard for Aquaculture

Replacement STs Series Conductivity Electrode

cmp-k

Pipe Mounting Accessory

Replacement STs Series Dissolved Oxygen Electrode

pHiKlip™

Multiparameter Measurement System