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pH Sensors

For measuring pH values in process applications, we offer different sensor versions, including glass and glass-free ISFET sensors. The digital pH measurement is performed using Memosens technology, which enables a preventative diagnostics buffer of the sensor condition.

Our analog and digital pH sensors are available with explosion protection, in different sensor lengths, and with various connection options. They are suitable for a wide range of fittings, including SensoGate and Ceramat retractable fittings as well as inline, flow-through, and immersion fittings.

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SE559 pH Sensor | Memosens | 120 mm | Ex | For water and analytical chemistry
SE559 pH Sensor | Memosens | 120 mm | Ex | For water and analytical chemistry
Product number:

SE559X/1-NMSN

SE558 pH Sensor | VP | 120 mm | Ex | For ultrapure water, water and analytical chemistry
SE558 pH Sensor | VP | 120 mm | Ex | For ultrapure water, water and analytical chemistry
Product number:

SE558X/1-NVPN

SE571 pH Sensor | Memosens | 120 mm | Ex | For demanding applications in the chemical industry
SE571 pH Sensor | Memosens | 120 mm | Ex | For demanding applications in the chemical industry
Product number:

SE571X/1-NMSN

SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry
SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry
Product number:

SE558X/2-NVPN

SE554 pH Sensor | VP | 120 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 120 mm | Ex | For very high ionic strength media
Product number:

SE554X/1-NVPN

SE547N pH Sensor | Memosens | 120 mm | CIP/SIP capable and autoclavable
SE547N pH Sensor | Memosens | 120 mm | CIP/SIP capable and autoclavable
Product number:

SE547N/1-NMSN-A2

SE555 pH Sensor | Memosens | 225 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Memosens | 225 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/2-NMSN

SE555 pH/ORP Sensor | Memosens | 225 mm | Ex | CIP/SIP capable | Sterilizable | For aggressive media
SE555 pH/ORP Sensor | Memosens | 225 mm | Ex | CIP/SIP capable | Sterilizable | For aggressive media
Product number:

SE555X/2-AMSN

SE555 pH Sensor | VP | 120 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | VP | 120 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/1-NVPN

SE560 pH Sensor | VP | 120 mm | For low-conductivity media and low temperatures
SE560 pH Sensor | VP | 120 mm | For low-conductivity media and low temperatures
Product number:

SE560

SE555 pH/ORP Sensor | Memosens | 120 mm | Ex | CIP/SIP capable | Sterilizable | For aggressive media
SE555 pH/ORP Sensor | Memosens | 120 mm | Ex | CIP/SIP capable | Sterilizable | For aggressive media
Product number:

SE555X/1-AMSN

SE555 pH Sensor | Memosens | 120 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Memosens | 120 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/1-NMSN

SE554 pH Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
Product number:

SE554X/2-NMSN

SE554 pH Sensor | Memosens | 325 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 325 mm | Ex | For very high ionic strength media
Product number:

SE554X/3-NMSN

SE554 pH Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
Product number:

SE554X/1-NMSN

SE557 pH Sensor | Memosens | 120 mm | Ex | Omega glass | For process media requiring high measurement stability
SE557 pH Sensor | Memosens | 120 mm | Ex | Omega glass | For process media requiring high measurement stability
Product number:

SE557X/1-NMSH

SE555 pH Sensor | Memosens | 120 mm | Ex | PWIS-free | Sterilizable | For aggressive media
SE555 pH Sensor | Memosens | 120 mm | Ex | PWIS-free | Sterilizable | For aggressive media
Product number:

SE555X/1-NMSN-LABS

SE555 pH Sensor | VP | 325 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | VP | 325 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/3-NVPN

SE558 pH Sensor | Memosens | 120 mm | Ex | For ultrapure water, water and analytical chemistry
SE558 pH Sensor | Memosens | 120 mm | Ex | For ultrapure water, water and analytical chemistry
Product number:

SE558X/1-NMSN

SE554 pH Sensor | Memosens | 425 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 425 mm | Ex | For very high ionic strength media
Product number:

SE554X/4-NMSN

SE558 pH Sensor | Memosens | 225 mm | Ex | For ultrapure water, water and analytical chemistry
SE558 pH Sensor | Memosens | 225 mm | Ex | For ultrapure water, water and analytical chemistry
Product number:

SE558X/2-NMSN

SE554 pH Sensor | VP | 325 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 325 mm | Ex | For very high ionic strength media
Product number:

SE554X/3-NVPN

SE554 pH/ORP Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
SE554 pH/ORP Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
Product number:

SE554X/2-AMSN

SE555 pH Sensor | VP | 425 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | VP | 425 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/4-NVPN

SE554 pH Sensor | VP | 225 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 225 mm | Ex | For very high ionic strength media
Product number:

SE554X/2-NVPN

SE571 pH Sensor | Memosens | 225 mm | Ex | For demanding applications in the chemical industry
SE571 pH Sensor | Memosens | 225 mm | Ex | For demanding applications in the chemical industry
Product number:

SE571X/2-NMSN

SE554 pH/ORP Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
SE554 pH/ORP Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
Product number:

SE554X/1-AMSN

SE503 pH Sensor | VP | 120 mm | Polysulfone Body | For water and wastewater treatment
SE503 pH Sensor | VP | 120 mm | Polysulfone Body | For water and wastewater treatment
Product number:

SE503N/1-NVPN

SE515 pH Sensor | Memosens | 120 mm | Sigma glass | For water and wastewater treatment
SE515 pH Sensor | Memosens | 120 mm | Sigma glass | For water and wastewater treatment
Product number:

SE515/1-MS

SE555 pH Sensor | Coax (S8) | 225 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Coax (S8) | 225 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/2-NS8N

SE555 pH Sensor | Memosens | 425 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Memosens | 425 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/4-NMSN

SE571 pH Sensor | Memosens | 120 mm | PWIS-free | Ex | For demanding applications in the chemical industry
SE571 pH Sensor | Memosens | 120 mm | PWIS-free | Ex | For demanding applications in the chemical industry
Product number:

SE571X/1-NMSN-LABS

SE555 pH Sensor | VP | 225 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | VP | 225 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/2-NVPN

SE554 pH Sensor | VP | 425 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 425 mm | Ex | For very high ionic strength media
Product number:

SE554X/4-NVPN

SE559 pH Sensor | Memosens | 225 mm | Ex | For water and analytical chemistry
SE559 pH Sensor | Memosens | 225 mm | Ex | For water and analytical chemistry
Product number:

SE559X/2-NMSN

SE555 pH Sensor | Memosens | 325 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Memosens | 325 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/3-NMSN

SE547N pH Sensor | Memosens | 225 mm | CIP/SIP capable and autoclavable
SE547N pH Sensor | Memosens | 225 mm | CIP/SIP capable and autoclavable
Product number:

SE547N/2-NMSN-A2

SE555 pH Sensor | Coax (S8) | 120 mm | Ex | Sterilizable | For aggressive media
SE555 pH Sensor | Coax (S8) | 120 mm | Ex | Sterilizable | For aggressive media
Product number:

SE555X/1-NS8N