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pH Transmitters

Knick pH transmitters enable the reliable handling of the most accurate measurement results with analog and digital Memosens sensors. Using Knick’s measuring devices and sensors, you can reliably measure the strengths of acids and bases in industrial applications.

The pH measuring devices are available in different versions: 2 or 4 wire, portable, or as DIN rail transmitters. They are suitable for both hazardous locations and non-hazardous locations. The transmitters are supplemented with a reliable digital communication with Ethernet/IP, HART, FOUNDATION Fieldbus, Profibus DP, and Profibus PA.

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Portavo 902 PH Portable pH/ORP Transmitter | Memosens/Analog Sensors
Portavo 902 PH Portable pH/ORP Transmitter | Memosens/Analog Sensors
Product number:

902pH

Portavo 904X PH Portable pH/ORP Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Data Logger
Portavo 904X PH Portable pH/ORP Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Data Logger
Product number:

904XpH

Portable meter 907Multi with sensor holder and indicator of the measured pH value 4.00
Portavo 907 MULTI PH Portable Multiparameter Transmitter | Memosens Sensors | Analog pH Sensors | Data Logger | Add-On Functions
Product number:

907MULTIpH

Stratos Eco 2405 pH pH/ORP Transmitter | Analog Sensors | Ex FM Cl 1 Div 2 | 4-Wire
Stratos Eco 2405 pH pH/ORP Transmitter | Analog Sensors | Ex FM Cl 1 Div 2 | 4-Wire
Product number:

2405 pH

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | HART | 4 ... 20 mA Output
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | HART | 4 ... 20 mA Output
Product number:

A201N-PH-0

Portavo 904 PH Portable pH/ORP Transmitter | Memosens/Analog Sensors | Data Logger
Portavo 904 PH Portable pH/ORP Transmitter | Memosens/Analog Sensors | Data Logger
Product number:

904pH

Stratos Evo A402N Multiparameter Transmitter | Memosens/Analog Sensors | HART | 4-Wire
Stratos Evo A402N Multiparameter Transmitter | Memosens/Analog Sensors | HART | 4-Wire
Product number:

A402N

Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | 4x 4…20 mA Outputs
Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | 4x 4…20 mA Outputs
Product number:

E401N.020

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | HART | 4 ... 20 mA Output
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | HART | 4 ... 20 mA Output
Product number:

A201N-MSPH-0

Portavo 904X MULTI Portable Multiparameter Transmitter | Memosens Sensors | Ex Zone 0/1 | Data Logger
Portavo 904X MULTI Portable Multiparameter Transmitter | Memosens Sensors | Ex Zone 0/1 | Data Logger
Product number:

904XMULTI

Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | HART | 2x 4…20 mA Outputs
Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | HART | 2x 4…20 mA Outputs
Product number:

E401N.030

MemoRail A1401 Compact Multiparameter Transmitter | Memosens Sensors | 1x 4…20 mA Active Output | 24 V DC Power Supply
MemoRail A1401 Compact Multiparameter Transmitter | Memosens Sensors | 1x 4…20 mA Active Output | 24 V DC Power Supply
Product number:

A1401N-P1-10

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 0/1 | HART | 4 ... 20 mA Output
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 0/1 | HART | 4 ... 20 mA Output
Product number:

A201X-MSPH-0

Protos II 4400 C Modular Multiparameter-Transmitter | Wide Sensor Selection | Corrosion-Proof Coating | 4-Wire | Broad-Range Power Supply
Protos II 4400 C Modular Multiparameter-Transmitter | Wide Sensor Selection | Corrosion-Proof Coating | 4-Wire | Broad-Range Power Supply
Product number:

4400 C

Portavo 908 MULTI Portable Multiparameter Transmitter | Memosens Sensors | Data Logger | GLP Compliance | Direct Printer Control
Portavo 908 MULTI Portable Multiparameter Transmitter | Memosens Sensors | Data Logger | GLP Compliance | Direct Printer Control
Product number:

908MULTI

Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 2-Channel | 4x 4…20 mA Outputs
Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 2-Channel | 4x 4…20 mA Outputs
Product number:

E401X.020

Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel | 2x 4…20 mA Outputs
Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel | 2x 4…20 mA Outputs
Product number:

E401N

Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 1-Channel | HART | 2x 4…20 mA Outputs
Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 1-Channel | HART | 2x 4…20 mA Outputs
Product number:

E401X.010

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | HART | 2x 4 ... 20 mA Outputs
Product number:

A201N-MSPH-1

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 2 | HART | 4 ... 20 mA Output
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 2 | HART | 4 ... 20 mA Output
Product number:

A201B-MSPH-0

Protos II 4400X S Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Hygienic Surface | 4-Wire | 24 V AC/DC Power Supply
Protos II 4400X S Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Hygienic Surface | 4-Wire | 24 V AC/DC Power Supply
Product number:

4400 XS/24V

Stratos Pro A221X Multiparameter Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Profibus
Stratos Pro A221X Multiparameter Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Profibus
Product number:

A221X

MemoRail A1401 Compact Multiparameter Transmitter | Memosens Sensors | Ex | 1x 4…20 mA Passive Output | 24 V DC Power Supply
MemoRail A1401 Compact Multiparameter Transmitter | Memosens Sensors | Ex | 1x 4…20 mA Passive Output | 24 V DC Power Supply
Product number:

A1401B-P1-30

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 2 | HART | 4 ... 20 mA Output
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 2 | HART | 4 ... 20 mA Output
Product number:

A201B-PH-0

Protos II 4400X C Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Corrosion-Proof Coating | 4-Wire | Broad-Range Power Supply
Protos II 4400X C Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Corrosion-Proof Coating | 4-Wire | Broad-Range Power Supply
Product number:

4400 XC/VPW

Stratos Multi E471N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel |EtherNet/IP | 2x 4…20 mA Outputs
Stratos Multi E471N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel |EtherNet/IP | 2x 4…20 mA Outputs
Product number:

E471N.010

Stratos MS A405N Multiparameter Transmitter | Memosens Sensors | 4-Wire
Stratos MS A405N Multiparameter Transmitter | Memosens Sensors | 4-Wire
Product number:

A405N

Protos II 4400 S Modular Multiparameter-Transmitter | Wide Sensor Selection | Hygienic Surface | 4-Wire | Broad-Range Power Supply
Protos II 4400 S Modular Multiparameter-Transmitter | Wide Sensor Selection | Hygienic Surface | 4-Wire | Broad-Range Power Supply
Product number:

4400 S

Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 1-Channel | 2x 4…20 mA Outputs
Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 1-Channel | 2x 4…20 mA Outputs
Product number:

E401X

Stratos Multi E461N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | PROFINET | 2x 4…20 mA Outputs
Stratos Multi E461N Multiparameter Transmitter | Memosens/Analog Sensors | 2-Channel | PROFINET | 2x 4…20 mA Outputs
Product number:

E461N.010

Stratos Pro A221N Multiparameter Transmitter | Memosens/Analog Sensors | Profibus
Stratos Pro A221N Multiparameter Transmitter | Memosens/Analog Sensors | Profibus
Product number:

A221N

Stratos Pro A231N Multiparameter Transmitter | Memosens/Analog Sensors | Foundation Fieldbus
Stratos Pro A231N Multiparameter Transmitter | Memosens/Analog Sensors | Foundation Fieldbus
Product number:

A231N

Stratos Multi E471N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel |EtherNet/IP | 2x 4…20 mA Outputs
Stratos Multi E471N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel |EtherNet/IP | 2x 4…20 mA Outputs
Product number:

E471N

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | HART | 2x 4 ... 20 mA Outputs
Product number:

A201N-PH-1

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 0/1 | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 0/1 | HART | 2x 4 ... 20 mA Outputs
Product number:

A201X-PH-1

Protos II 4400X C Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Corrosion-Proof Coating | 4-Wire | 24 V AC/DC Power Supply
Protos II 4400X C Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Corrosion-Proof Coating | 4-Wire | 24 V AC/DC Power Supply
Product number:

4400 XC/24V

Protos II 4400X S Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Hygienic surface | 4-Wire | Broad-range power supply
Protos II 4400X S Modular Multiparameter-Transmitter | Wide Sensor Selection | Ex | Hygienic surface | 4-Wire | Broad-range power supply
Product number:

4400 XS/VPW

Stratos Pro A231X Multiparameter Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Foundation Fieldbus
Stratos Pro A231X Multiparameter Transmitter | Memosens/Analog Sensors | Ex Zone 0/1 | Foundation Fieldbus
Product number:

A231X

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 0/1 | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 0/1 | HART | 2x 4 ... 20 mA Outputs
Product number:

A201X-MSPH-1

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 0/1 | HART | 4 ... 20 mA Output
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 0/1 | HART | 4 ... 20 mA Output
Product number:

A201X-PH-0

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 2 | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 2 | HART | 2x 4 ... 20 mA Outputs
Product number:

A201B-MSPH-1

Stratos Multi E461N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel |PROFINET | 2x 4…20 mA Outputs
Stratos Multi E461N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel |PROFINET | 2x 4…20 mA Outputs
Product number:

E461N

Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 2 | HART | 2x 4 ... 20 mA Outputs
Stratos Pro A201 PH pH/ORP Transmitter | Analog Sensors | Ex Zone 2 | HART | 2x 4 ... 20 mA Outputs
Product number:

A201B-PH-1

Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel | HART | 2x 4…20 mA Outputs
Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel | HART | 2x 4…20 mA Outputs
Product number:

E401N.010

Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 2-Channel | HART | 2x 4…20 mA Outputs
Stratos Multi E401X Multiparameter Transmitter | Memosens/Analog Sensors | Ex | 2-Channel | HART | 2x 4…20 mA Outputs
Product number:

E401X.030