Sentek
Trading as SENTEK LIMITED, registered at Companies House number 02753857.
What we have checked
Every brand here has to clear one test before it is listed at all: the company is a UK legal entity with real activity here. That is a question about the business, and it is deliberately not the same question as where any individual product is made.
- uk registered entity: Companies House record resolves, status active. This maker publishes no company number and no registered postcode. The domain https://sentek.co.uk is the registered company name, and the full registered name, suffix included, appears on the page. Inferred by us (§3.3), not stated by the company. Source, checked 2026-08-29.
- uk hq: Registered office is a UK address: Beacon House, Cambridge, CB4 1TF. This is the registered office, which is not necessarily where the company operates. Source, checked 2026-08-29.
We have only checked company registration so far. Evidence of UK employment or a UK site is the next thing we intend to gather, and until we have it we say so on every product rather than implying it.
What they make
139 products listed. 139 don't say where they are made, so neither do we.
- Electrode Storage BottleSentek£7.50
- Electrode Storage Bottle Pack of 3Sentek£18
- Fill Solution for Polarographic DO2 Electrode 30mlSentek£24
- Fill Solution for Galvanic DO2 ElectrodeSentek£25.50
- Electrode Storage Solution 150mlSentek£25.50
- Electrode NS14-15 AdaptorSentek£25.50
- Electrode Cleaning Solution 150mlSentek£25.50
- Zero Oxygen Solution for Dissolved Oxygen ElectrodesSentek£27
- Reference Electrode Filling SolutionsSentek£37.50
- 3.5M KCl/AgCl Partial Gel 150mlSentek£37.50
- pH4 & pH7 Buffer Solution 500mlSentek£47.50
- Standard Calibration Solution for ISEsSentek£49.50
- EP14 Educational ElectrodeSentek£55.50
- P10 General Purpose Glass pH ElectrodeSentek£63
- Ionic Strength Adjustment Buffer (ISAB) for ISEsSentek£64.50
- Flow Through CellSentek£82.50
- P14 Epoxy Body Combination pH ElectrodeSentek£82.50
- P11 Rod Glass Combination pH ElectrodeSentek£82.50
- P11 Glass Combination pH ElectrodeSentek£82.50
- R1 AgCl Glass Reference ElectrodeSentek£84
- K20 K=1 Low Cost Conductivity Industrial ElectrodeSentek£84
- P14 Educational Electrode KitSentek£91.50
- P14/RJ Jam pH ElectrodeSentek£93
- pH4 Buffer Capsules (Pack of 50)Sentek£97.50
- pH10 Buffer Capsules (Pack of 50)Sentek£97.50
- pH9 Buffer Capsules (Pack of 50)Sentek£97.50
- pH7 Buffer Capsules (Pack of 50)Sentek£97.50
- R1/AgCl/8×70/S7 Voltammetry Reference ElectrodeSentek£101
- Electrode Bulb ProtectorSentek£102
- P14/NS/SR/CAP/S8 Swimming Pool pH ElectrodeSentek£102
- P14/NS/SR/CAP/1M/BNC Swimming Pool pH ElectrodeSentek£102
- P14/SG/½”BSP/Fixed Cable Solid Gel ElectrodeSentek£103.50
- P14/SG/BNC Solid Gel ElectrodeSentek£103.50
- No photograph yetP14/SG/S8 Solid Gel ElectrodeSentek£103.50
- P11 Protected Bulb pH ElectrodeSentek£112.50
- P12 Long Reach Combination pH ElectrodeSentek£115.50
- P13/S7 Semi Micro Combination pH ElectrodeSentek£118.50
- P18 Spear Combination pH ElectrodeSentek£118.50
- P13 Semi Micro Combination pH ElectrodeSentek£118.50
- K10 Glass Bodied K=1 General Laboratory Conductivity ElectrodeSentek£118.50
- P14/DJ Epoxy Bodied Double Junction pH ElectrodeSentek£120
- Swing Arm Electrode HolderSentek£126
- P14/DJ/S8 Epoxy Bodied Double Junction ElectrodeSentek£126
- K=0.01 Stainless Steel Low Cost Conductivity Industrial ElectrodeSentek£126
- K40 K=0.1 Low Cost Conductivity Industrial ElectrodeSentek£126
- R2 AgCl Glass Double Junction Reference ElectrodeSentek£126
- P11/HA Glass High Alkaline Photographic pH ElectrodeSentek£127.50
- K20/S8 Epoxy Bodied K=1 Industrial ElectrodeSentek£127.50
- R1/HgCl/4×15 Voltammetry Reference ElectrodeSentek£130.50
- P19 Small Diameter Spear Combination pH ElectrodeSentek£132
- R1 Glass Calomel Reference ElectrodeSentek£132
- K20 Epoxy Bodied K=1 Laboratory Conductivity ElectrodeSentek£136.50
- R4 AgCl Epoxy Teflon Junction Reference ElectrodeSentek£139.50
- KI10 Pipeline K=1 Industrial Conductivity ElectrodeSentek£153
- O14/DJ/TEF/1M/BNC Epoxy Combination ORP ElectrodeSentek£153
- No photograph yetO14/NS/SR/CAP/S8 Swimming Pool ElectrodeSentek£153
- No photograph yetO14/NS/SR/CAP/1M/BNC Swimming Pool ElectrodeSentek£153
- R1/AgCl/8×80/S7 Voltammetry Reference ElectrodeSentek£153.30
- R1/HgCl/8×82/S7 Voltammetry Reference ElectrodeSentek£155.50
- O3 Platinum ORP Half Cell ElectrodeSentek£157.50
- O14/DJ/TEF/S8 Industrial ElectrodeSentek£160.50
- GT135 Sterprobe – Gel Filled pH Electrode, Euro-Standard PG13.5Sentek£162
- R1/8×96/AgCart/S7 Voltammetry Reference ElectrodeSentek£164
- P15 Low Conductivity Water Combination pH ElectrodeSentek£165
- pH Knife ProbeSentek£169.50
- P19 Plastic Body Food Pentration pH ProbeSentek£169.50
- O1/S8 Platinum ORP Glass Combination ElectrodeSentek£171
- O1 Platinum ORP Glass Combination ElectrodeSentek£171
- KI11 Dip K=1 Industrial Conductivity ElectrodeSentek£174
- P16 Tris Buffers Combination pH ElectrodeSentek£174
- P11/DJ/NaF Non-Aqueous SamplesSentek£174
- P20 3in1 General pH ElectrodeSentek£174
- P17 Flat Head Combination pH ElectrodeSentek£174
- P11-NS14/15-S7 pH Titrator ElectrodeSentek£174
- O1-NS14/15-S7 Redox Titrator ElectrodeSentek£183
- TP135 Sterprobe Pt1000 – Temperature Sensor, Glass, Euro-Standard PG13.5Sentek£186
- O3 Platinum Disc Small Diameter ORP Glass Half Cell ElectrodeSentek£186
- TP135 Sterprobe Pt100 – Temperature Sensor, Glass, Euro-Standard PG13.5Sentek£187.50
- O2 Karl Fischer Titration ElectrodeSentek£187.50
- K30 Glass Flow Through K=1 Laboratory Conductivity ElectrodeSentek£187.50
- O2-NS14/15-S7 Karl Fisher Titrator ElectrodeSentek£201
- PI10 Laboratory pH ElectrodeSentek£207
- P11 Drinking Water pH ElectrodeSentek£207
- K22 Epoxy Bodied K=10 Laboratory Conductivity ElectrodeSentek£207
- K21 Pure Water K=0.1 Laboratory Conductivity ElectrodeSentek£207
- K22/S8 Epoxy Bodied K=10 Industrial ElectrodeSentek£207
- K21/S8 Epoxy Bodied K=0.1 Industrial ElectrodeSentek£207
- K25/G Glass Bodied K=0.8 Laboratory Conductivity ElectrodeSentek£208.50
- PI10 Pipeline Combination Industrial pH ElectrodeSentek£211.50
- K40 Pure Water Laboratory Conductivity ElectrodeSentek£216
- P11-NS14/15-S7 NaF Non Aqueous Titrator ElectrodeSentek£217.50
- P29 Micro Food Penetration pH ProbeSentek£217.50
- K25 General Purpose K=0.55 Laboratory Conductivity ElectrodeSentek£217.50
- Sodium 315 Mono Ion Selective ElectrodeSentek£228
- PI11 Dip Industrial ElectrodeSentek£229.50
- P21-NS14/15-S7 pH Difficult Samples Titrator ElectrodeSentek£237
- K10-5mm Laboratory Conductivity ElectrodeSentek£241.50
- K10-6mm Test Tube and Small Volume Measurements Laboratory Conductivity ElectrodeSentek£241.50
- Polarographic Dissolved Oxygen ElectrodeSentek£252
- Galvanic Dissolved Oxygen ElectrodeSentek£271.50
- 18MPRB-USP Measurement of DI Water Laboratory Conductivity ElectrodeSentek£271.50
- OI10/S8 Pipeline Combination ORP Industrial ElectrodeSentek£277.50
- OI10/SG/S8 Combination ORP Industrial ElectrodeSentek£277.50
- Silver 308 Mono Ion Selective ElectrodeSentek£283
- Lead 307 Mono Ion Selective ElectrodeSentek£283
- Iodide 303 Mono Ion Selective ElectrodeSentek£283
- Cyanide 304 Mono Ion Selective ElectrodeSentek£283
- Copper 306 Mono Ion Selective ElectrodeSentek£283
- Chloride 301 Mono Ion Selective ElectrodeSentek£283
- Bromide 302 Mono Ion Selective ElectrodeSentek£283
- P11 Gel-Filled pH Electrode with Integrated Temperature SensorSentek£291
- Cadmium 309 Mono Ion Selective ElectrodeSentek£300
- P21 Sleeve Junction Colloids/Low Conductivity pH ElectrodeSentek£312
- OI11 Combination PPS ORP Industrial ElectrodeSentek£313.50
- Potassium 314 Mono Ion Selective ElectrodeSentek£316
- Nitrate 311 Mono Ion Selective ElectrodeSentek£316
- Fluoride 333 Mono Ion Selective ElectrodeSentek£316
- Calcium 310 Mono Ion Selective ElectrodeSentek£316
- Ammonium 334 Mono Ion Selective ElectrodeSentek£316
- pH Knife Probe KitSentek£322.50
- Water Hardness 3100 Combination Ion Selective ElectrodeSentek£380
- Thiocyanate 3229 Combination Ion Selective ElectrodeSentek£380
- Sulphide 3225 Combination Ion Selective ElectrodeSentek£380
- Sodium 3315 Combination Ion Selective ElectrodeSentek£380
- Silver 3211 Combination Ion Selective ElectrodeSentek£380
- Potassium 3031 Combination Ion Selective ElectrodeSentek£380
- Nitrate 3021 Combination Ion Selective ElectrodeSentek£380
- Lead 3231 Combination Ion Selective ElectrodeSentek£380
- Cyanide 3291 Combination Ion Selective ElectrodeSentek£380
- Iodide 3281 Combination Ion Selective ElectrodeSentek£380
- Cupric 3227 Combination Ion Selective ElectrodeSentek£380
- Chloride 3261 Combination Ion Selective ElectrodeSentek£380
- Calcium 3041 Combination Ion Selective ElectrodeSentek£380
- Cadmium 3241 Combination Ion Selective ElectrodeSentek£380
- Bromide 3271 Combination Ion Selective ElectrodeSentek£380
- Ammonium 3051 Combination Ion Selective ElectrodeSentek£380
- Fluoride 3221 Combination Ion Selective ElectrodeSentek£380
- Ammonia 321 Combination Ion Selective ElectrodeSentek£460
- Flow Through Cell for Micro Sample TestingSentek£267
