Precision Water Analytical & Inline Sensor Catalog
Explore factory-calibrated inline water conductivity, pH/ORP, and dissolved oxygen instruments direct from Shanghai BOQU production facilities.
High Temperature (0-130℃) pH Sensor
Steam-sterilizable inline sensor tailored for bioprocessing, fermentation broth, and aggressive chemical streams.
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High Temp Sensor with Built-in RTD
Integrated PT1000 temperature compensation ensuring uncompromised drift-free precision in hot inline applications.
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High-Temp S8 Connector Sensor
Robust industrial PG13.5 threaded sensor housing with gold-plated S8/VP plug interface for reliable inline insertion.
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Pharmaceutical Fermentation Sensor
Sanitary design matching international 3-A & ASME BPE standards, resisting protein coatings in bioreactor loops.
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pH5806 Shanghai Brand Sensor
Certified Shanghai Brand electrode delivering ultra-low chemical drift in aggressive industrial electrolysis lines.
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DCA130 Dual Channel pH & EC Meter
Comprehensive micro-controller monitoring both pH and inline conductivity via 4-20mA & RS485 Modbus RTU.
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SJG-2083CS Inductive EC Meter
Toroidal electrodeless sensor engineered for extreme acid/alkali concentration detection and chemical CIP systems.
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IOT-485 Direct Digital Bus Sensor
Smart microprocessor sensor outputting digital RS485 Modbus strings without requiring external transmitters.
Configure SensorGlobal Inline Conductivity Measurement Architectures
Providing definitive process control, thermal power generation safety, and ultrapure fluid integrity through customized sensor physical design.
Thermal & Nuclear Power SWAS
Supercritical and subcritical steam boiler loops require sub-microSiemens detection. Our 2-electrode inline cells with cell constants of k=0.01 and k=0.1 cm⁻¹ detect minute cation conductivity deviations caused by chloride or sulfate ingress, halting corrosive turbine degradation before expensive unscheduled plant shutdowns occur.
Semiconductor UPW & Pharma WFI
Producing sub-nanometer microchips requires Ultrapure Water (UPW) reaching theoretical resistivity limits (18.2 MΩ·cm at 25°C). Our sanitary 316L stainless steel and titanium electrode inline sensors ensure zero ionic elution, non-invasive flow geometry, and direct alignment with USP <645> Water for Injection standards.
Aggressive Chemical & CIP Clean-in-Place
For high-concentration acids (H₂SO₄, HCl, HNO₃) and caustics (NaOH) up to 2,000 mS/cm, traditional electrodes degrade or polarize instantly. BOQU non-contact inductive (toroidal) inline conductivity sensors encapsulate excitation and receiver coils in virgin PEEK or PVDF, providing immune life-cycles in chemical syntheses.
Engineering Selection Matrix: Inline Conductivity Technologies
Comprehensive baseline comparing physical sensor topologies, measuring ranges, material science, and field installation topologies.
| Sensor Architecture | Cell Constant (k) / Range | Electrode / Wetted Material | Ideal Industrial Matrix | Engineering Trade-Offs |
|---|---|---|---|---|
| 2-Electrode Contacting | k=0.01 / 0.05 to 20 µS/cm | Electropolished 316L / Titanium / PEEK | SWAS Steam, RO Permeate, EDI ultrapure loops | Extreme precision in pure water; prone to polarization at >200 µS/cm. |
| 2-Electrode Standard | k=1.0 / 1 µS/cm to 2,000 µS/cm | Platinum Black / High-purity Graphite | Potable drinking water, cooling towers, light effluent | Standard industry benchmark; requires periodic fouling maintenance. |
| 4-Electrode Wide Range | k=0.5 / 10 µS/cm to 200 mS/cm | Hastelloy C-276 / Titanium Grade 2 | Industrial wastewater, mining slurry, food brine | Polarization-immune; compensates for moderate scale build-up electronically. |
| Toroidal / Inductive (Non-contact) | Electrodeless / 100 µS/cm to 2,000 mS/cm | Virgin PEEK / PFA / PVDF Polymeric Matrix | Chemical pickling, CIP caustics/acids, seawater RO | Completely immune to electrode poisoning; larger installation envelope required. |
Localization Support & Regulatory Guarantee
Ensuring frictionless installation within global DCS, PLC, SCADA, and IoT telemetric telemetry frameworks.
Fieldbus & IIoT Protocols
Every inline analyzer natively supports isolated 4-20mA current loops with configurable HART protocols, high-speed RS485 Modbus RTU, and direct Ethernet/MQTT gateways for direct cloud transmission in smart industrial city water utilities.
International Quality Accreditations
Our manufacturing and assembly infrastructure operates rigorously under certified ISO 9001 and ISO 14001 frameworks. Every batch of inline sensors carries European CE conformity, third-party SGS factory audit verifications, and FDA wetted surface compliance.
Turnkey OEM / ODM & Private Labeling
We provide global instrumentation brands, distributors, and engineering firms with private labeling, customizable cable insulation materials (PTFE, Silicone, PUR), bespoke insertion lengths, proprietary firmware, and specialized flanges (Tri-Clamp, NPT, ANSI).
The Future of Industrial Water Analytical Instrumentation
Architecting self-calibrating, edge-computing, and non-fouling sensor paradigms for Industry 4.0 operations.
Edge AI & Predictive Maintenance
Next-generation BOQU inline conductivity sensors incorporate embedded edge microcontrollers running predictive algorithms. By monitoring high-frequency impedance curves across the electrode boundary layer, the sensor warns operators of chemical scale formation weeks before data skew occurs.
Ultra-Low Power Wireless Modbus
Deploying inline monitoring across vast remote industrial water canals or oil field injection plants requires zero cabling infrastructure. Our R&D pipelines integrate low-power NB-IoT and LoRaWAN transceivers right into the sensor head, operating reliably off internal lithium battery packs for 3+ years.
Nanomaterial Coatings for Anti-Biofouling
Biological fouling in wastewater and aquaculture systems creates massive labor costs. BOQU is pioneering diamond-like carbon (DLC) and hydrophilic fluoropolymer surface coatings that discourage biofilm adhesion, enabling maintenance-free continuous immersion monitoring for over 180 continuous days.
Wholesale Inline Water Conductivity Sensor FAQ
Actionable answers to technical, commercial, and engineering questions asked by global distributors and procurement directors.
How do I select between contacting and toroidal (inductive) sensors?
Contacting 2-electrode sensors are essential for low-conductivity and ultrapure water applications (<200 µS/cm) such as boiler feed and RO permeate. Toroidal sensors are suited for conductive, dirty, or aggressive chemical media (up to 2,000 mS/cm), like CIP caustic solutions and salt brine, where physical electrodes would polarize or corrode.
What is the impact of cable length on inline conductivity accuracy?
For contacting sensors in ultrapure water, cable capacitance can introduce substantial measurement error over long runs. We recommend using digital sensors that output RS485 Modbus RTU directly from the sensor body, or placing the transmitter within 5 meters of the insertion point to eliminate line resistance losses.
How does inline temperature compensation work in variable processes?
Conductivity is dependent on temperature (typically changing 2% per °C). BOQU inline sensors integrate high-speed PT100, PT1000, or NTC temperature elements positioned close to the electrodes, utilizing programmable linear or ultra-pure water temperature compensation algorithms inside the transmitter.
What are the factory turnaround times for wholesale and OEM orders?
Standard inline sensor models are dispatched within 3 to 5 business days. Customized OEM runs—incorporating private labels, bespoke insertion threads (e.g., 3/4" NPT, G 1/2", Tri-Clamp), special cable lengths, or custom Modbus register addresses—typically ship within 2 to 3 weeks directly from our Shanghai facilities.
Online Analyzers & Transmitters Portfolio
Explore rugged secondary instrumentation, multi-parameter telemetry platforms, and specialized industrial controllers ready for global deployment.
DOG-208FA Steam-Sterilizable DO Sensor
Polarographic inline dissolved oxygen sensor engineered for high-temperature fermentation and biopharma media.
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ZDYG-2088-01QX Infrared Turbidity Sensor
Scattered-light optical sensor equipped with automated mechanical wipers for high-fouling wastewater outfalls.
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MPG-6099Plus Multi-Parameter Panel
Integrated municipal distribution panel measuring pH, residual chlorine, turbidity, and conductivity on a centralized display.
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pHG-2081Pro Industrial Controller
Panel-mount transmitter with dual programmable relays and isolated 4-20mA current loop for dosing pumps.
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Online Free Residual Chlorine Meter
Constant-voltage amperometric sensor system maintaining chlorine safety thresholds across drinking water utilities.
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SWAS Trace Chemical Spectrometer
High-precision colorimetric analyzer preventing turbine scale through sub-ppb silicate and sodium detection.
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TOC-3042 Online Total Organic Carbon
UV persulfate oxidation method measuring organic carbon impurities down to sub-ppb thresholds in USP pharmaceutical water.
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COD / TP / TN / NH₃-N Effluent Monitor
Automated wet-chemical analyzer executing auto-calibration and digestion for strict environmental outfall compliance.
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