Anhui Jujie Automation Technology Co., LTD.
Anhui Jujie Automation Technology Co., LTD.
  • ph sensors for liquid food analyzers
  • ph sensors for liquid analysis instruments
  • ph sensors for hplc chromatography analysis
  • ph sensors for liquid particle size analyzer
  • ph sensors for hplc chemical analysis
  • ph sensors for liquid food analyzers
  • ph sensors for liquid analysis instruments
  • ph sensors for hplc chromatography analysis
  • ph sensors for liquid particle size analyzer
  • ph sensors for hplc chemical analysis

PH Sensors

PH Sensors include multiple customized models for seawater, HF, desulfurization, pure water etc. Adopt double salt bridge & IP68 design, support optional temperature probes, with high precision and anti-blocking liquid junction for diverse industrial water monitoring.

Features of PH Sensors

  • Custom models for pure water, seawater, HF, desulfurization, high temp & organic solvent

  • Double salt bridge solid junction, anti-clogging, no electrolyte refilling

  • ±0.05pH precision, optional NTC/PT probes for auto temp compensation

  • PP/PPS housing, IP68 waterproof, max 0.6MPa pressure, -20~130℃ range

  • NPT3/4 thread, low-noise cable extendable up to 100m

  • Standard buffer & on-site sample calibration, compatible with pH meters and PLC


Specification of PH Sensors

Product NameOnline PH/ORP Meter
Measurement RangepH: 0-14.00; ORP: -2000~+2000mV; Temperature: 0-150℃ (depending on the electrode)
Measurement AccuracypH: ±0.05pH; ORP: ±5mV; Temperature: ±0.3℃
Temperature CompensationAutomatic or Manual
ResolutionpH: 0.01pH; ORP: 1mV; Temperature: 0.1℃
StabilitypH: ≤0.02pH/24h; ORP: ≤2mV/24h
Relay2 sets, 5A 240VAC/5A 28VDC or 120VAC
Power Supply85 ~ 265VAC or 9 ~ 36VDC, Power: ≤3W
Current OutputStandard: 1 channel 4-20mA; Optional: 2 channels
Communication OutputStandard: RS485 Modbus RTU
Overall Dimensions98*98*130mm
Panel Cutout Dimensions93*93mm
Protection ClassIP65
Installation MethodPanel mounting / Cabinet mounting / Embedded or Wall mounting
Instrument Weight0.6kg
Ambient Temperature-10 ~ 60℃; Relative Humidity: ≤90%; No strong magnetic field interference around except for the Earth's magnetic field
Model No.CS1701CS1728CS1729CS1745C/CS1745CTCS1753CCS1778CS1788CS1797
Measure materialPP+GFAntimony





pH zero point7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH7.00 ± 0.25pH
Reference systemAg/AgCl/KClSNEX Ag/AgCl/KClSNEX(Blue) Ag/AgCl/KClAg / AgCLAg / AgCLSNEX Ag/AgCl/KClSNEX Ag/AgCl/KClSNEX(yellow) Ag/AgCl/KCl
Electrolyte solution3.3M KCl3.3M KCl3.3M KClKCL
3.3M KCl3.3M KClSaturated LiCl solution
Membrane resistance<500MΩ<500MΩ<500MΩ<800M Ω<800M Ω<600MΩ<600MΩ<500MΩ
Housing materialPPPPPPPPSPP+GFPPPPPP
Liquid junctionCeramic coresSNEXSNEXporous ceramicsPorous ceramicSNEXSNEXSNEX
Waterproof gradeIP68IP68IP68IP68IP68IP68IP68IP68
Measurement range2-12pH0-14pH0-14pH0-14pH0-14pH0-14pH2-12pH0-14pH
Accuracy± 0.05pH± 0.05pH± 0.05pH± 0.05pH± 0.05pH± 0.05pH± 0.05pH± 0.05pH
Pressure resistance≤0.3Mpa≤0.6Mpa≤0.6Mpa0-0.6MPa0-0.6MPa≤0.6Mpa≤0.6Mpa≤0.6Mpa
Temperature compensationNTC10K,PT100,PT1000 (Optional)NTC10K,PT100,PT1000 (Optional)NTC10K,PT100,PT1000 (Optional)CS1745C: no  CS1745CT: PT1000NTC10K/NTC2.2K/PT100/PT1000NTC10K,PT100,PT1000 (Optional)NTC10K, PT100, PT1000 (Optional)NTC10K, PT100, PT1000 (Optional)
Temperature range0-80℃0-80℃0-80℃-20-130℃0-80℃0-80℃0-80℃0-80℃
CalibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibrationSample calibration, standard liquid calibration
Double JunctionYesYesYesYesYesYesYesYes
Cable lengthStandard 5m cable, can be extended to 100mStandard 5m cable, can be extended to 100mStandard 10m cable, can be extended to 100m10m or agreed10m or as agreedStandard 10m cable, can be extended to 100mStandard 10m cable, can be extended to 100mStandard 10m cable, can be extended to 100m
Installation threadNPT3/4"NPT3/4"NPT3/4"NPT 3 / 4 "Bottom NPT3/4, Top G3/4NPT3/4"NPT3/4"NPT3/4"
ApplicationCommon water qualityHydrofluoric acid environment, HF<1000PPMSea waterHigh temp environmentSuitable for strong acids, strong bases, and industrial processesFlue gas desulfurization environmentPure water, low Ion concentration environment.Organic Solvent and Non-aqueous Environment.
Cable connector


pin, BNC, or conventionPin, BNC or as agreed



Diagram of PH Sensors

PH Sensors for Liquid Quality Analyzers

PH Sensors for Liquid Scintillation Analyzer

PH Sensors for Automotive Temperature Gauge

PH Sensors for Automatic Fan with Temperature Sensor

PH Sensors for Body Heat Detector

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