Electrochemical Sensors & Electrodes
Sentek Electrodes UK
pH, Reference, Conductivity, ORP, Dissolved Oxygen & Ion-Selective Electrodes
Auckland Scientific supplies Sentek electrochemical sensors and electrodes throughout the UK. Based in Bishop Auckland, County Durham, we support laboratories, universities, manufacturing, food and beverage, environmental, biotechnology and industrial customers with electrode selection and technical advice.
Sentek Electrochemical Sensors from Auckland Scientific
Sentek is a UK manufacturer of electrochemical sensors with products for laboratory, industrial, education, food, environmental and specialist measurement applications.
Auckland Scientific can help identify suitable electrodes according to the measurement type, sample, temperature, body material, connector and intended operating environment.
We support customers throughout North East England and across the United Kingdom.
Sentek Electrode Range
pH Electrodes
Glass and epoxy-body pH electrodes for laboratory, industrial, food, environmental and general measurement applications.
Reference Electrodes
Reference electrode solutions for electrochemical measurements requiring a stable reference potential.
Conductivity Electrodes
Sensors for conductivity measurement in suitable laboratory, environmental and industrial applications.
Ion-Selective Electrodes
ISE sensors for selective measurement of specific ions in suitable analytical applications.
Dissolved Oxygen Electrodes
Electrodes for dissolved-oxygen measurement in laboratory, environmental and process applications.
ORP Electrodes
Oxidation-reduction potential sensors for water, process and analytical measurement applications.
Food & Specialist Electrodes
Specialist probes for food, biotechnology, industrial, educational and other application-specific measurements.
Custom & OEM Sensors
Sentek also manufactures configurable and custom electrochemical sensors for specialist OEM and application requirements.
Sentek Electrode Applications
Choosing the Correct pH Electrode
The correct electrode depends on much more than the required pH range. Sample type, temperature, electrode body, junction design, maintenance requirements and connector compatibility can all influence performance.
Tell Auckland Scientific which meter you use and what you need to measure and we can help identify suitable Sentek options.
Why Buy Sentek from Auckland Scientific?
Application Advice
Help selecting the correct sensor for your sample and measurement.
Compatibility Support
Advice on electrode type, connectors and suitable meter compatibility.
Specialist Requirements
Support for unusual samples and specialist electrode applications.
UK Technical Support
Technical assistance before and after purchase.
Sentek Electrodes in North East England
Auckland Scientific is based in Bishop Auckland, County Durham and supplies Sentek electrodes throughout North East England and across the UK.
Discuss Your Electrode Requirements
Contact Auckland Scientific for Sentek pH, conductivity, reference, ion-selective and specialist electrochemical sensors.
Contact Auckland ScientificSentek Electrodes, Probes & Accessories
Browse Sentek electrochemical sensors by measurement type, along with supporting electrode solutions, buffer capsules and accessories.
pH Electrodes

EP14 Educational Electrode
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P10 General Purpose Glass pH Electrode
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P11 Drinking Water pH Electrode
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P11 Glass Combination pH Electrode
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P11 Protected Bulb pH Electrode
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P11 Rod Glass Combination pH Electrode
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P11-NS14/15-S7 NaF Non Aqueous Titrator Electrode
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P11-NS14/15-S7 pH Titrator Electrode
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P11/DJ/NaF Non-Aqueous Samples
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P11/HA Glass High Alkaline Photographic pH Electrode
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P12 Long Reach Combination pH Electrode
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P13 Semi Micro Combination pH Electrode
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P14 Educational Electrode Kit
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P14 Epoxy Body Combination pH Electrode
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P14/DJ Epoxy Bodied Double Junction pH Electrode
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P14/NS/SR/CAP/1M/BNC Swimming Pool pH Electrode
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P14/NS/SR/CAP/S8 Swimming Pool pH Electrode
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P14/RJ Jam pH Electrode
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P14/SG/½”BSP/Fixed Cable Solid Gel Electrode
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P14/SG/BNC Solid Gel Electrode
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P14/SG/S8 Solid Gel Electrode
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P15 Low Conductivity Water Combination pH Electrode
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P16 Tris Buffers Combination pH Electrode
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P17 Flat Head Combination pH Electrode
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P18 Spear Combination pH Electrode
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P19 Plastic Body Food Penetration pH Probe
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P19 Small Diameter Spear Combination pH Electrode
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P20 3in1 General pH Electrode
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P21 Sleeve Junction Colloids/Low Conductivity pH Electrode
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P21-NS14/15-S7 pH Difficult Samples Titrator Electrode
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P29 Micro Food Penetration pH Probe
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pH Knife Probe Kit
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pH Knife Probe Kit (Replacement)
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PI10 Laboratory pH Electrode
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 120mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 130mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 150mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 210mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 225mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 260mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 325mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 425mm
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Sterprobe – Gel Filled pH Electrode: Euro-Standard PG13.5: Immersion Depth 480mm
View product →Conductivity Electrodes

18MPRB-USP Measurement of DI Water Laboratory Conductivity Electrode
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K10 Glass Bodied K=1 General Laboratory Conductivity Electrode
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K10-5mm Laboratory Conductivity Electrode
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K10-5mm Laboratory Conductivity Electrode
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K20 Epoxy Bodied K=1 Laboratory Conductivity Electrode
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K21 Pure Water K=0.1 Laboratory Conductivity Electrode
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K22 Epoxy Bodied K=10 Laboratory Conductivity Electrode
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K25 General Purpose K=0.55 Laboratory Conductivity Electrode
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K30 Glass Flow Through K=1 Laboratory Conductivity Electrode
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K40 Pure Water Laboratory Conductivity Electrode
View product →Conductivity Cells
ORP / Redox Electrodes

O1-NS14/15-S7 Redox Titrator Electrode
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O1-NS14/15-S7 Redox Titrator Electrode
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O1/S8 Platinum ORP Glass Combination Electrode
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O14/NS/SR/CAP/1M/BNC Swimming Pool Electrode
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O14/NS/SR/CAP/S8 Swimming Pool Electrode
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O3 Platinum ORP Half Cell Electrode
View product →Dissolved Oxygen Electrodes

Galvanic Dissolved Oxygen Electrode
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Polarographic Dissolved Oxygen Electrode
View product →Reference Electrodes

R1 AgCl Glass Reference Electrode
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R1 Glass Calomel Reference Electrode
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R2 AgCl Glass Double Junction Reference Electrode
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R4 AgCl Epoxy Teflon Junction Reference Electrode
View product →Titration Electrodes

O2 Karl Fischer Titration Electrode
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O2-NS14/15-S7 Karl Fisher Titrator Electrode
View product →Sterprobe Temperature Sensors

Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 120mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 130mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 150mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 210mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 225mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 260mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 425mm
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Sterprobe – Temperature Sensor (Glass) Euro-Standard PG13.5 Pt1000: Immersion Depth: 480mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 120mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 130mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 150mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 210mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 225mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 260mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 325mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 425mm
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Sterprobe – Temperature Sensor (Glass): Euro-Standard PG13.5 Pt100 - 480mm
View product →pH Buffer Capsules

3.5M KCl/AgCl Partial Gel 150ml
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pH10 Buffer Capsules (Pack of 50)
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pH4 Buffer Capsules (Pack of 50)
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pH7 Buffer Capsules (Pack of 50)
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pH9 Buffer Capsules (Pack of 50)
View product →Electrode Solutions

Electrode Cleaning Solution 150ml
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Electrode Storage Solution 150ml
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Fill Solution for Galvanic DO2 Electrode
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Fill Solution for Polarographic DO2 Electrode 30ml
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Reference Electrode Filling Solution - (NH4)2SO4 150ml
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Reference Electrode Filling Solution - KCl 150ml
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Reference Electrode Filling Solution - KNO3 150ml
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Reference Electrode Filling Solution - LiAC 150ml
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Reference Electrode Filling Solution - LiCl 150ml
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Reference Electrode Filling Solution - NaNO3 150ml
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Reference Electrode Filling Solution - NH4 Cl 150ml
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Reference Electrode Filling Solution - TEAC. 150ml
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