Manufactured under ISO 9001 and ISO 14001, each sensor undergoes high-temperature cycling, pressure testing, and factory calibration for mission-critical operations.
Designed with standard PG13.5 threading and durable S8 connector for rapid integration into bio-reactors, autoclaves, and aggressive chemical loops.
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Engineered with polymer gel electrolyte and ceramic diaphragm to eliminate reference poisoning during sustained thermal stress.
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Integrated Pt100/Pt1000 RTD enabling real-time Nernst temperature compensation under harsh, dynamic process gradients.
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Certified non-cytotoxic, SIP/CIP compliant electrode engineered to withstand repeated in-situ steam sterilization cycles without drift.
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Shanghai Brand certified glass formulation engineered specifically for industrial synthesis and cell culture monitoring.
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Polarographic micro-cathode probe offering rapid response kinetics and exceptional resilience to bio-fouling in fermenters.
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Embedded microprocessor delivering direct Modbus RTU telemetry, internal calibration storage, and noise-immune transmission.
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Infrared 860nm nephelometric design equipped with an integrated mechanical wiper to maintain spotless optics in wastewater effluent.
View SpecificationsThe global transition from periodic manual grab-sampling to autonomous, continuous, and closed-loop process automation demands radical advancements in sensor longevity, multi-junction electrochemistry, and optical durability.
Traditional single-junction probes suffer rapid electrolyte depletion and pore clogging from heavy metal precipitation. Modern manufacturing introduces pressurized gel reservoirs, porous annular Teflon junctions, and solid polymer matrices that maintain constant ion mobility while resisting fouling up to 130°C and 1.6 MPa.
Dissolved oxygen analysis is transitioning from electrochemical Clark cells to dynamic fluorescence quenching. By pulsing 475nm blue excitation light against an oxygen-sensitive ruthenium/platinum complex, the measured phase-shift latency yields ppb-level DO data without consuming analyte or requiring electrolyte rebuilds.
Analog high-impedance mV signals degrade across lengthy industrial cable trays due to EMI/RFI noise. Embedded micro-controllers inside digital probes convert mV, nA, and optical signals directly at the sensing head, broadcasting noise-free RS485 Modbus RTU telemetry over industrial distances exceeding 500 meters.
Procurement directors and instrumentation engineers face tightening OPEX pressures, stringent local environmental regulations, and zero-downtime objectives.
Global systems integrators seek to minimize field configuration errors. Probes featuring internal calibration memory (calibration coefficients stored directly in EEPROM) allow offline laboratory calibration prior to field deployment.
Unscheduled plant shutdowns cost tens of thousands of dollars per hour. Buyers prioritize probe life extension via self-cleaning wiper mechanisms, air-blast purges, and automated chemical flushing valves.
Whether navigating EU CE-LVD/EMC compliance, North American UL/cUL requirements, or FDA sanitary mandates in food and drug facilities, procurement specifies full material traceability.
Engineered to guide design contractors and plant chemists in matching analyte thermodynamics, chemistry, and fluid dynamics with optimal probe topologies.
| Target Parameter | Core Sensing Principle | Critical Process Constraints | Recommended Probe Hardware | System Integration Outputs |
|---|---|---|---|---|
| High-Temp pH / ORP | Potentiometric Glass / Polymer Gel | High steam cycles (130°C), organic solvents, heavy fouling | pH5806 Series with PG13.5 S8 Connector | 4-20mA Galvanic Isolation, RS485 Modbus |
| Trace Dissolved Oxygen | Optical Phase Fluorometry / Polarographic | Boiler feedwater <5 ppb DO, aggressive deaeration monitoring | DOG-208FA / Sub-ppb Optical DO Probe | Modbus RTU, Dual SPDT Relay Alarms |
| Inductive Conductivity | Toroidal Electrodeless Induction | Extreme salinity, concentrated caustic/acid CIP loops (0-2000 mS) | SJG-2083CS Toroidal Concentration Sensor | Linearized Concentration % + 4-20mA Loop |
| Turbidity & TSS | 90° / 140° Dual-Beam Scattered Light | Effluent discharge compliance, secondary clarifier sludge blanket | ZDYG-2088-01QX with Built-in Wiper | Digital RS485, Programmable Wiper Logic |
| SWAS Trace Silica/Sodium | High-Precision Micro-Colorimetry | Sub-ppb superheater deposition prevention, steam turbine purity | SWAS Online Trace Analyzer Rack System | Ethernet TCP/IP, SCADA Relay Matrices |
Since 2007, Shanghai BOQU Instrument Co., Ltd. has developed sovereign intellectual property across high-temperature glass blowing, optical spectrometry, and microelectronics.
Operates the nation's premier specialized high-temperature probe laboratory. We execute continuous automated autoclave thermal stress tests (0–135°C) to simulate months of biopharma steaming and chemical batch reactions prior to release.
Spanning 4,632 m² across Kangqiao and Lingang high-tech development hubs, our plants integrate dedicated cleanrooms, SMT automated board assembly lines, robotic optical alignment stages, and environmental burn-in bays.
No instrument departs our factory untested. Probes undergo a non-negotiable 48-hour continuous burn-in, dielectric isolation verification, and multi-point buffer calibration with documented traceability.
Accelerating product time-to-market for private label instrument brands, skid builders, and engineering procurement contractors worldwide.
From Hastelloy C-276, Titanium, or PEEK wetted sleeves to customized immersion lengths, flow cells, and tri-clamp sanitary assemblies, our mechanical engineering team creates drop-in replacements for legacy European or American probe footprints.
We provide full stack protocol programming, including Modbus RTU address maps, specialized Baud rates, Profibus-DP bridges, 4-20mA loop calibration profiles, and wireless telemetry modules (LoRaWAN, NB-IoT, 4G-LTE Cat-M1).
Every shipment is supported by international compliance dossiers: CE Declaration of Conformity, RoHS environmental verification, ISO 9001 factory audits, and FDA sanitary component declarations for rapid customs clearance.
How artificial intelligence at the edge, solid-state electrochemistry, and optical miniaturization are redefining water quality asset management through 2030.
Integrating electrochemical impedance spectroscopy (EIS) directly onto sensor microchips. By measuring membrane resistance and reference junction impedance in real-time, the probe forecasts glass breakage, electrolyte dry-out, and calculates Remaining Useful Life (RUL) before plant loops fail.
Transitioning beyond fragile glass bulbs. Ion-Sensitive Field-Effect Transistor (ISFET) semiconductor technology allows non-glass pH sensing for food, dairy, and beverage applications where glass contamination is strictly prohibited by HACCP guidelines.
Consolidating the multi-parameter transmitter and telemetry gateway into the sensor body. Probes autonomously process sensor drift, execute automated multi-point calibrations, and upload encrypted data directly to enterprise SCADA and cloud platforms.
In-depth responses compiled by BOQU technical directors and international application engineers.
BOQU is a direct manufacturer founded in 2007. Operating out of two owned production bases in Shanghai (Kangqiao and Lingang) covering 4,632 m², we maintain full sovereignty over sensor blowing, mechanical tooling, PCB SMT population, firmware compilation, and final calibration. We produce more than 100,000 instruments annually with 200+ dedicated staff.
Our high-temperature pH and DO sensors, including the flagship pH5806 and DOG-208FA, utilize specialized high-temperature resistant glass matrices and pressurized polymer reference gel systems. Unlike conventional liquid KCl electrolytes that flash-boil and expel through porous junctions under autoclave conditions (121–135°C), our polymer maintains its viscosity and ionic conductance across repeated sterilization cycles.
Yes. Our IOT-485 digital probe lineup outputs standard, unencrypted RS485 Modbus RTU protocol. They connect directly into Siemens, Rockwell, ABB, or Schneider PLCs, edge computers, and IoT telemetry gateways without requiring expensive secondary transmitters or brand-locked transceivers.
Manufacturing lines are governed under certified ISO 9001 (Quality Management) and ISO 14001 (Environmental Systems). Our analytical instrumentation holds complete CE documentation (EMC & LVD directives), third-party SGS factory audit certifications, and relevant FDA material conformance. The pH5806 series is recognized with the official Shanghai Brand distinction for engineering leadership.
To ensure optimal sensor longevity and accuracy, please share: (1) Target analytical parameter and dynamic range; (2) Chemical composition of the media, including aggressive solvents or abrasive solids; (3) Operating and maximum temperature and pressure; (4) Process connection type (immersion, flow cell, retractable housing, or pipe-weld); and (5) Required communications (4-20mA, Modbus RTU, relay thresholds).
For standard catalog configurations, delivery is maintained within 3–7 business days. For customized OEM/ODM builds—such as private branding, custom cable jackets, proprietary thread adapters, and customized Modbus register allocations—prototyping typically completes within 10–14 days, supported by flexible MOQs designed to facilitate market testing.
Fully integrated multi-parameter panels, trace colorimeters, and high-frequency controllers tailored for automated dosing and strict regulatory compliance.
Simultaneous dual-parameter monitoring for agricultural fertigation, cooling towers, and reverse osmosis plants in a unified enclosure.
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Comprehensive pre-plumbed panel combining pH, Free Chlorine, Turbidity, Conductivity, and Dissolved Oxygen for clean water distribution.
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Precision transmitter offering galvanic output isolation, dual setpoint relays for dosing acid/alkali, and backlit industrial display.
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Toroidal electrodeless sensor delivering reliable percentage concentration metrics for CIP regeneration loops without electrode fouling.
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Constant-voltage amperometric technology measuring free chlorine and chlorine dioxide continuously without recurring reagent expenses.
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Dedicated high-sensitivity colorimetric wet chemistry system protecting superheaters and boiler turbine blades against trace silica scaling.
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UV-persulfate oxidation method engineered for high-purity water, pharmaceutical WFI loops, and critical industrial process streams.
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Fully automated environmental compliance system featuring self-cleaning fluidic paths, multi-point auto-calibration, and data reporting.
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