Digital pH sensors [Download]
Model Features Image
CS1556D Steam Sterilization /135℃
Fermentation, biotechnology, pharmaceutical, food and beverage industries.		 CS1550 Low conductivity water: Pure water, Tap water
CS1555D Chemical process, strong acids and alkalis CS1550 Low conductivity water: Pure water, Tap water
CS1551D Low conductivity water: pure water, boiler water, tap water, drinking water High durability, reliability CS1550 Low conductivity water: Pure water, Tap water
CS1554D General purpose CS1550 Low conductivity water: Pure water, Tap water
CS1548D Tap Water, sewage & wastewater treatment CS1550 Low conductivity water: Pure water, Tap water
CD1254D pH ORP dual output, general purpose CS1550 Low conductivity water: Pure water, Tap water
CS1540D Surface water, river water, aquaculture, with stainless steel shell CS1550 Low conductivity water: Pure water, Tap water
CS1543D Tap water, surface water, waste water,High durability CS1550 Low conductivity water: Pure water, Tap water
CS1528D HF(Hydrofluoric acid) containing media CS1550 Low conductivity water: Pure water, Tap water
CS1529D Seawater, sulfide/ fluoride related media CS1550 Low conductivity water: Pure water, Tap water
CS1668D SNEX is for tough situations:
Sludge, viscous fluids, protein, hydrogen sulfide, cyanide, seawater, brine, mining, petrochemical process. 		CS1550 Low conductivity water: Pure water, Tap water
CS1754D General purpose, with SNEX solid-state polymer electrolyte reference system. CS1550 Low conductivity water: Pure water, Tap water
CS1769D In-Line Max. Pressure to 20 bar (atm)/300 psig, with SNEX solid liquid junction. CS1550 Low conductivity water: Pure water, Tap water
CS1768D SNEX is for tough situations:
Sludge, viscous fluids, protein, hydrogen sulfide, cyanide, seawater, brine, mining, petrochemical process. 		CS1550 Low conductivity water: Pure water, Tap water
CS1778D SNEX is for tough situations:
Exhaust gas desulfurization & denitrification process, scrubber 		CS1550 Low conductivity water: Pure water, Tap water
CS1753D Economical process pH sensor, built-in temperature sensor CS1550 Low conductivity water: Pure water, Tap water
CS1733D Economical process pH sensor CS1550 Low conductivity water: Pure water, Tap water

Digital pH sensors
(optional accessory)
twinno 200 Field Communicator
With twinno200 Field Communicator, you can set up and calibrate the digital sensor efficiently in field.
Model
Specifications
CS1556D digital pH sensor Steam Sterilization /135℃
Fermentation, biotechnology, pharmaceutical,
food and beverage industries. CS1556 pH combination sensor
Specifications  
pH range 0~13
Zero point (pH) 7.00 ± 0.1
Resolution 0.01pH
Operation temp. 0 ~ 135 °C
Max. Pressure 7 bar (atm)
Shell material Glass
pH bulb Low impedance blue plus
Resistance <150 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Junction Double
Liquid Junction Circular porosity ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1555D digital pH sensor Chemical process, strong acids and alkalis CS1555D pH combination sensor
Specifications  
pH range 0~14
Zero point (pH) 7.00 ± 0.1
Resolution 0.01pH
Operation temp. 0 ~ 100 °C
Max. Pressure 7 bar (atm)
Output mV
Shell material Glass
pH bulb HIW1
Resistance ＜350 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Supplement electrolyte bank Yes
Junction Double
Liquid Junction Circular porosity ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1551D digital pH sensor Low conductivity water:
pure water, boiler water, tap water,
drinking water High durability, reliability CS1551D pH combination sensor
Specifications  
pH range 0~13
Zero point (pH) 7.00 ± 0.1
Operation temp. 0 ~ 100 °C
Resolution 0.01pH
Max. Pressure 7 bar (atm)
Output mV
Shell material Glass
pH bulb Low impedance blue
Resistance <150 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Supplement electrolyte bank Yes
Junction Double
Liquid Junction Circular porosity ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1554D digital pH sensor General purpose CS1554D pH combination sensor
Specifications  
pH range 0~13
Zero point (pH) 7.00 ± 0.1
Resolution 0.01pH
Operation temp. 0 ~ 100 °C
Max. Pressure 7 bar (atm)
Output mV
Shell material Glass
pH bulb Low impedance blue
Resistance <150 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Junction Double
Liquid Junction Circular porosity ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1548D digital pH sensor Tap Water, sewage & wastewater treatment CS1548D pH combination sensor
Specifications  
pH range 0~13
Zero point (pH) 7.00 ± 0.1
Resolution 0.01pH
Operation temp. 0 ~ 100 °C
Max. Pressure 7 bar (atm)
Output mV
Shell material Glass
pH bulb Low impedance blue
Resistance <150 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Junction Double
Liquid Junction Circular porosity ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1540D digital pH sensor Surface water, river water, aquaculture, with stainless steel shell CS1540D pH combination sensor
Specifications  
PH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 80 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material Glass+316L Stainless steel
pH bulb <350 MΩ
Reference system Ag/AgCl/KCl
Electrolyte Viscous gel
Junction Double
Liquid Junction Porous ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1543D digital pH sensor Tap water, surface water, waste water,
High durability CS1543D pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material Glass
pH bulb <350 MΩ
Reference system Ag/AgCl, KCl
Electrolyte Viscous gel
Junction Double
Liquid Junction Porous ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1528D digital pH sensor HF(Hydrofluoric acid) containing media CS1528D pH combination sensor
Specifications  
pH range 0~12
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material Glass
pH bulb W28
Reference system SNEX internal Ref. system (White).
Electrolyte Viscous gel
Junction Double
Liquid Junction Porous ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1529D digital pH sensor Seawater, sulfide/ fluoride related media CS1529D pH combination sensor
Specifications  
PH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material Glass
Sensitive film part no. W02
Reference system SNEX internal Ref. system (Blue).
Electrolyte CMC gel
Junction Double
Liquid Junction Porous ceramic
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1668D digital pH sensor SNEX is for tough situations:
Sludge, viscous fluids, protein, hydrogen sulfide, cyanide, seawater, brine, mining, petrochemical process. CS1668D pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material PA+GF
pH bulb B11
Reference system Ag/AgCl/KCl
Electrolyte Viscous gel
Junction Single
Liquid Junction SNEX Solid Liquid Junction
Thread Cap PG13.5 PP+POM
Electrode dimensions ø12x240mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1769D digital pH sensor In-Line Max. Pressure to 20 bar (atm)/300 psig,
with SNEX solid liquid junction.
CS1769 pH combination sensor
Specifications  
pH range 0~14
Zero point (pH) 7.00 ± 0.2
Resolution 0.01pH
Operation temp. 0 ~ 100 °C
Max. Pressure 20 bar (atm)/ 300 psig
Output mV
Shell material PPS
pH bulb HIW1 semi-bulb
Resistance ＜350 MΩ
Reference system Ag/AgCl/KCl
Liquid Junction SNEX Solid Liquid Junction
Dimensions Φ30 x 160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1768D digital pH sensor SNEX is for tough situations:
Sludge, viscous fluids, protein, hydrogen sulfide, cyanide, seawater, brine, mining, petrochemical process. CS1768D pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material PPS
pH bulb HIW1
Reference system Ag/AgCl/KCl
Electrolyte Viscous gel
Junction Single
Liquid Junction SNEX Solid Liquid Junction
Dimensions Φ30 x 160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1778D digital pH sensor SNEX is for tough situations:
Exhaust gas desulfurization & denitrification process, scrubber CS1778D pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 90 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material PPS
pH bulb HIW1
Reference system Ag/AgCl/KCl
Electrolyte Viscous gel
Junction Single
Liquid Junction SNEX Solid Liquid Junction
Dimensions Φ30 x 160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1754D digital pH sensor General purpose,
with SNEX solid-state polymer electrolyte
reference system. CS1754 pH combination sensor
Specifications  
pH range 0~13
Zero point (pH) 7.00 ± 0.1
Resolution 0.01pH
Temperature range 0 ~ 100 °C
Max. Pressure 7 bar (atm)
Output mV
Shell material PPS
pH bulb Low impedance blue
Resistance <150 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Junction Double
Liquid Junction Porosity PTFE
Dimensions Φ30 x160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1755pH sensor General purpose,
with SNEX solid-state polymer electrolyte
reference system. CS1755 pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Zero point (pH) 7.00 ± 0.1
Temperature range 0 ~ 100 °C
Max. Pressure 7 bar (atm)
Output mV
Shell material PPS
pH bulb HIW1
Resistance <250 MΩ
Reference system Ag/AgCl/KCl
Electrolyte SNEX solid-state polymer
Junction Double
Liquid Junction Porosity PTFE
Dimensions Φ30 x 160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
CS1753D digital pH sensor Economical process pH sensor,
built-in temperature sensor CS1753D pH combination sensor
Specifications  
pH range 0~14
Resolution 0.01pH
Operation temp. 0 ~ 80 °C
Max. Pressure 6 bar (atm)
Output mV
Shell material PP
pH bulb B11
Reference system Ag/AgCl/KCl
Electrolyte Viscous gel
Junction Double
Liquid Junction Porous PTFE
Dimensions Φ30 x 160mm
Cable Length 5m
Connector Terminals
Output RS485 Modbus RTU
Power Supply DC 9~24V
IP rated IP68
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