High Temperature Precision Sensing Core Series
Manufactured and verified in China's dedicated high-temperature sensor test laboratories, supporting real-time compensation, extreme thermal cycling, and continuous 0–130°C stability.
Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories
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Wholesale High-temperature S8 Connector pH Sensor Manufacturers, Factory
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China High-temperature pH Sensor Used Pharmaceutical Fermentation Wholesaler, Supplier
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China High Temperature (0-130℃) pH Sensor With Temperature Wholesaler, Suppliers
Product Specs
China High Temperature (0-130℃) pH Sensor With Temperature Wholesaler, Suppliers
Product Specs
Wholesale High-temperature S8 Connector pH Sensor Manufacturers, Factory
Product Specs
Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories
Product Specs
China High-temperature pH Sensor Used Pharmaceutical Fermentation Wholesaler, Supplier
Product SpecsOvercoming Thermal & Chemical Drift in Severe Media
Electrochemical sensor degradation at sustained high temperatures (>100°C) is primarily driven by reference poisoning, electrolyte boil-off, and mechanical seal shearing. Shanghai BOQU Instrument resolves these failure modes through integrated material sciences.
Solid-State Polymer Reference Systems
Traditional liquid-junction KCl references undergo extreme osmotic depletion and boiling under autoclave sterilization. Our proprietary polymerized acrylamide-gel matrix maintains stable ion diffusion without back-diffusion of sulfurous and heavy metal poisons, extending sensor life up to 300% in industrial fermenters.
Alkali-Resistant Heavy-Wall Glass Bulbs
Standard glass membranes exhibit catastrophic lithium ion leaching and alkaline errors above pH 11 and 80°C. BOQU formulates high-density, alkali-resistant glass membranes capable of withstanding repeated 130°C Clean-in-Place (CIP) caustic flushes (2-5% NaOH) without lattice cracking.
Integrated Over-Pressure Mechanics
Differential pressure between the process vessel and internal electrode chamber causes rapid electrolyte extrusion. Our high-temperature series incorporates internal pre-pressurization systems (up to 6 bar) that equilibrate hydrostatic stress during intense SIP cycling.
| Critical Metric | Standard Commercial Probe | BOQU pH5806 High-Temp Series | Engineering Advantage |
|---|---|---|---|
| Operating Temperature | 0 – 80 °C | 0 – 130 °C Continuous | Withstands in-line 121°C / 130°C autoclave and steam sterilization. |
| Pressure Resistance | Atmospheric (≤ 1.5 bar) | 0 – 6 Bar (Pre-pressurized) | Prevents vessel process backflow into reference junction. |
| Reference Junction | Single Ceramic Porous Frit | Double / Triple Annular Ceramic / Teflon | Resistant to organic clogging, protein binding, and chemical fouling. |
| Connector Interface | Standard BNC / Low-temp cable | High-Temp PG13.5 Thread, S8 / VP / K9 | Hermetic seal, noise-immune IP68 shielding against RF vibration. |
| Digital Processing | Analog millivolt only | Integrated RS485 Modbus RTU / Analog | Direct integration into SCADA/DCS without costly signal conditioners. |
Macro Industry Deployments & Realized Reliability
Where off-the-shelf laboratory sensors fail within hours, BOQU's specialized electrochemical sensors deliver continuous, non-drifting analytical feedback across key world industries.
Biopharma & Industrial Fermentation
Fermentation broths require zero-contamination operation through multiple SIP batches. The pH5806 and DOG-208FA eliminate baseline drift post-sterilization, securing batch yields in antibiotics, recombinant insulin, amino acids, and enzyme synthesis plants across India, Russia, and the EU.
Thermal & Nuclear Power SWAS
Steam Water Analysis Systems demand sub-ppb accuracy under intense thermal pressures. BOQU high-temperature sensors and trace analyzers monitor boiler feedwater conditioning, sodium slip, and cation conductivity to eliminate turbine blade deposition and scale corrosion.
Harsh Chemical & Petrochemical Refining
Exothermic chemical synthesis involving high aromatic content, caustic scrubbing, and acidic stripping towers quickly destroy standard elastomer seals. Our custom PVDF, PEEK, and Hastelloy-sheathed assemblies deliver continuous ORP and pH tracking under aggressive solvent exposure.
China Factory 4.0: Supply Chain Resilience & Lean Delivery
Unlike trading intermediaries, Shanghai BOQU Instrument operates dual manufacturing centers totaling 4,632 m² in Kangqiao and Lingang, Shanghai, enforcing rigorous end-to-end traceability from raw glass blowing to final automated testing.
Dedicated High-Temp Testing Lab
China's foremost enterprise-level high-temperature sensor test lab, replicating continuous thermal shock, autoclaving, and high-pressure steam profiles before batch release.
48-Hour Burn-In Stress Aging
Every single analyzer board and sensor circuit undergoes 48-hour thermal chamber burn-in and calibration against NIST-traceable standard buffers to eradicate infant mortality.
Flexible ODM/OEM Agility
Fully in-house precision glass blowing, CNC mechanical tooling, and embedded SMT lines enable fast prototypes, private labeling, customized immersion lengths, and custom baud rates.
Supply Continuity Assurance
With an annual output surpassing 100,000 instruments, strategic buffer stock of electronic components and raw chemicals insulates global EPC projects from supply disruptions.
Fulfilling Global Procurement Requirements & Compliance
Tier-1 EPC contractors and global pharmaceutical enterprises require documented quality governance, comprehensive risk mitigation, and international certifications before vendor onboarding.
Full Certification Compliance
Certified under ISO 9001:2015 quality systems and ISO 14001:2015 environmental frameworks. Instruments carry full European CE conformity declarations, third-party SGS audits, FDA-compliant food/pharma contact verification, and Shanghai Brand credentials.
Global Protocol Interoperability
Eliminate field integration friction. BOQU devices offer native digital outputs (RS485 Modbus RTU, 4-20mA, HART options) engineered for seamless plug-and-play communication into Emerson DeltaV, Siemens PCS7, Rockwell Allen-Bradley, and Yokogawa DCS platforms.
Localized Engineering Support
Backed by an international applications team, we offer pre-sale specification audits, sample testing in extreme chemistry, complete FAT/SAT documentation, and expedited air-freight logistics to major industrial hubs across 100+ nations.
R&D Technology Roadmap: The Future of Electrochemical Sensing
BOQU's continuous investment in advanced sensor research focuses on autonomous diagnostics, solid-state non-glass ISFET chips, and AI-enabled lifetime prediction.
Smart Digital RS485 Sensors
Micro-transmitters embedded directly inside sensor caps to output processed Modbus RTU telemetry without transmission noise or separate wall controllers.
Predictive Sensor Health Algorithms
Real-time slope and zero-point dynamic tracking that warns operators of electrode fouling and glass thinning prior to process calibration failure.
Non-Glass ISFET Micro-Chips
Rugged silicon-chip pH transducers eliminating the fragile glass membrane entirely for food, beverage, and zero-breakage sterile environments.
Edge-AI Autonomous Calibration
Self-compensating analytical arrays that utilize process-flow neural profiles to compensate for temperature spikes and fluid fouling automatically.
Engineering Questions Answered by Technical Specialists
Key technical and procurement inquiries submitted by process instrumentation buyers and global plant operators.
Is BOQU an original equipment manufacturer (OEM) or an export agent?
Shanghai BOQU Instrument Co., Ltd. is a true manufacturer founded in 2007. We design, blow glass, assemble electronics, calibrate, and ship out of our two company-owned facilities (Kangqiao and Lingang) in Shanghai, China, housing over 200 employees and advanced automated assembly machinery.
How does the pH5806 survive repeated steam sterilization (SIP) cycles?
The pH5806 utilizes specialized high-temperature glass, a polymeric solid electrolyte matrix, and an over-pressure construction. This prevents the junction from boiling dry or siphoning media during rapid temperature transitions between 25°C and 130°C steam sterilizations.
What communication outputs are available for PLC/SCADA integration?
We provide dual options: our online analyzers provide isolated 4-20mA analog loops with programmable alarm relays and RS485 Modbus RTU. Our digital smart sensors output RS485 Modbus directly from the probe head, eliminating external transmitters.
Can you provide custom mechanical threads, lengths, and private labeling?
Yes. Our in-house engineering team provides complete OEM/ODM services including custom insertion lengths (120mm, 225mm, 325mm, 425mm), customized process fittings (PG13.5, 3/4" NPT, Tri-Clamp), proprietary cable connectors (S8, VP, K9), and custom-branded enclosures.
What international quality certifications do your sensors hold?
Our entire manufacturing process complies with ISO 9001 and ISO 14001. Products possess European CE compliance, SGS verification, FDA-conforming material certifications, and the prestigious Shanghai Brand certification awarded specifically to the pH5806 sensor line.
What data must be provided to receive a tailored engineering proposal?
Please share your process operating temperature range, system pressure, chemical medium makeup (solvent, acids, organics), mounting style (immersion, side port, flow-through chamber), required cable length, and preferred output protocol.
Procure High Temperature pH & ORP Sensors Direct from Factory
Standardized models in stock for rapid worldwide deployment. Contact our application engineering team for complete specification sheets, quotation tiers, and custom configuration audits.
Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories
Get Factory Pricing
Wholesale High-temperature S8 Connector pH Sensor Manufacturers, Factory
Get Factory Pricing
China High-temperature pH Sensor Used Pharmaceutical Fermentation Wholesaler, Supplier
Get Factory Pricing
China High Temperature (0-130℃) pH Sensor With Temperature Wholesaler, Suppliers
Get Factory Pricing
China High Temperature (0-130℃) pH Sensor With Temperature Wholesaler, Suppliers
Get Factory Pricing
Wholesale High-temperature S8 Connector pH Sensor Manufacturers, Factory
Get Factory Pricing
Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories
Get Factory Pricing