Pre-calibrated, IP68 sealed, and 48-hour burn-in stress-tested electrochemical instrumentation engineered for demanding continuous process control.
Integrated Pt1000/NTC30K automatic temperature compensation electrode designed for extreme thermal cycles and pharmaceutical CIP/SIP lines.
Heavy-duty double salt-bridge reference system resisting sulfide and cyanide poisoning in mineral extraction and chemical synthesis.
Sanitary autoclave-safe formulation compliant with FDA USP Class VI standards, resisting repeated high-pressure live steam sanitization.
Modular S8/VP6 detachable coax connector for rapid replacement in high-density bioreactor tanks and automated Skid modules.
Flagship model awarded Shanghai Brand certification, engineered with high-purity glass formulation and pressurized solid electrolyte.
Simultaneous multi-parameter monitoring for water purification and cooling towers with isolated 4-20mA and RS485 Modbus RTU telemetry.
Direct-to-PLC digital probe with embedded microprocessor, internal calibration logging, and robust noise immunity over 500m RS485 loops.
Non-contact toroidal induction technology designed for chemical regeneration, CIP caustic wash, and aggressive high-conductivity electrolytes.
Operational execution backed by verifiable Shanghai manufacturing assets, cleanroom calibration facilities, and multi-national OEM distribution pipelines.
Understanding analytical physical chemistry parameters is critical for specifying the correct cell constant, junction material, and temperature compensation algorithms across harsh process streams.
Online potentiometric pH determination measures the hydrogen ion activity via the Nernst potential generated across a hydrated gel layer on amorphous silicate glass membranes. In high-temperature and caustic applications, standard lithium-barium glasses suffer alkaline ion errors and dissolution.
Electrical conductivity (EC) quantifies ion movement between opposing electrodes. Selecting the proper cell constant (K) governs measurement dynamic range. In foul-prone, oil-heavy, or high-salinity media, electrodeless toroidal sensors eliminate boundary layer polarization errors.
TDS is not measured directly by a sensor; it is derived from solution conductivity scaled by a conversion factor (typically 0.50 to 0.70) depending on dominant salts (NaCl vs CaCO₃). Advanced digital analyzers compute non-linear temperature compensation.
Transparent benchmark pricing for volume industrial buyers, distributors, and engineering contractors. Quotations are FOB Shanghai or EXW terms with tiered volume discounts.
| Model / Product Code | Parameter Scope | Measuring Range & Accuracy | Signal & Telemetry | MOQ | Estimated Wholesale Price (USD) | Core Application Duty |
|---|---|---|---|---|---|---|
| pHG-2081Pro Online Transmitter |
pH / ORP / Temp | 0.00–14.00 pH (±0.01 pH) -1999 to +1999 mV |
Isolated 4-20mA + RS485 Modbus RTU + 2x Relays | 1 Unit | $145 – $260 / unit | Wastewater Neutralization, Municipal Plants |
| pH5806 Series Flagship High-Temp Sensor |
pH / High Temp | 0–14 pH, 0–130℃ Max Pressure: 0.6 MPa |
Analog High-Impedance Coaxial / S8 VP6 Connector | 5 Units | $75 – $145 / unit | Pharma Bioreactors, SIP Fermentation, Food CIP |
| DCA130 Dual Channel Integrated Controller |
pH + Conductivity + TDS + Temp | pH: 0-14, EC: 0-20,000 µS/cm TDS: 0-10,000 ppm (±1% FS) |
2x 4-20mA + RS485 Modbus + 3x Alarm Relays | 1 Unit | $220 – $380 / unit | RO Desalination, Hydroponics, Cooling Loops |
| IOT-485-pH Probe All-in-One Digital Sensor |
Digital pH + Temp | 0–14 pH, 0–60℃ Onboard ADC & CPU |
Direct RS485 Modbus RTU (IP68 Submersible) | 5 Units | $85 – $160 / unit | IoT Smart Agriculture, River Outfall Networks |
| EC-2800 Pure Water Ultra-Low Conductivity |
Conductivity / Resistivity | 0.01–20 µS/cm (K=0.01) Resistivity: 0–18.25 MΩ·cm |
4-20mA + Modbus + High-Limit Alarm | 1 Unit | $180 – $310 / unit | Semiconductor UPW, Power Plant Boiler Feed (SWAS) |
| SJG-2083CS Toroidal Chemical Concentration |
Inductive EC / TDS / Conc. | 0–2,000 mS/cm 0–10% HNO₃, 0–15% NaOH |
Isolated 4-20mA + RS485 Modbus + IP65 Case | 1 Unit | $340 – $580 / unit | Acid Regeneration, Pulp Digestion, Caustic Scrubbers |
| DOG-208FA High Temp DO Dissolved Oxygen Probe |
Dissolved O₂ + Temp | 0–20 mg/L (0–200% sat) Autoclave Sterilization Safe |
Polarographic Output / VP6 Connector | 2 Units | $160 – $290 / unit | Aerobic Microbial Cultures, Vaccine Vats |
| MPG-6099Plus Multi-Rack Integrated Turnkey Station |
pH + EC + TDS + Turbidity + DO + Residual Cl₂ | Multi-channel synchronous analysis with sample de-bubbler | Ethernet LAN, Cloud IoT Gateway, 4G / RS485 | 1 System | $1,450 – $3,200 / set | Municipal Tap Water Grids, Secondary Pump Stations |
Vertically integrated manufacturing facilities located in Shanghai’s Kangqiao and Lingang industrial clusters provide total engineering sovereignty from raw raw materials to calibrated transmitters.
Unlike assembly traders who import generic electrodes, BOQU operates in-house semi-automated glass-blowing lines, platinum firing furnaces, and vacuum gel filling reactors. This guarantees strict impedance consistency (≤200 MΩ at 25℃) across every batch of pH glass electrodes.
Electronic transmitters are assembled on high-speed SMT lines equipped with AOI optical inspection. Microprocessor boards integrate 2.5 kV galvanic isolation between power, sensor inputs, and 4-20mA loops, eliminating ground loops in noisy variable-frequency drive (VFD) pumping stations.
Every single instrument undergoes a non-negotiable 48-hour continuous elevated-temperature thermal aging chamber test before entering our calibration laboratory. Conductivity sensors are matched to standard reference solutions traceable to National Metrology Institutes.
Standardized measurement modules tailored to the distinct chemistry and operating pressures of global industrial process infrastructure.
Subcritical and supercritical steam turbines demand continuous monitoring of cation conductivity and trace silica to mitigate stress corrosion cracking (SCC). Our dedicated SWAS rack integration houses sample conditioning chillers, degassers, and ultra-low range K=0.01 conductivity analyzers to maintain feedwater purity at <0.1 µS/cm.
Active pharmaceutical ingredient (API) fermentation media requires strict aseptic integrity. BOQU pH5806 sensors with PG13.5 threads withstand repeated 130℃ in-situ steam sterilizations without reference electrolyte migration, while inductive SJG-2083CS sensors govern 3% caustic wash recovery lines.
From seawater reverse osmosis (SWRO) energy recovery to Zero Liquid Discharge (ZLD) crystallizers, our DCA130 dual-channel controllers and high-salinity conductivity probes ensure recovery membrane stage optimization and effluent compliance under EPA and EU emission regulations.
Our senior application engineers provide tailored drawing reviews, sample conditioning calculations, and P&ID sensor placement audits without consulting fees.
Continuous evolution in solid-state electrochemistry, AI edge drift compensation algorithms, and cloud native telemetry architectures.
Eliminating fragile thin-bulb glass membranes through micro-fabricated Ion-Sensitive Field-Effect Transistors (ISFET) and diamond-like carbon (DLC) coatings. These allow shatterproof food and beverage deployment and zero electrolyte refills in extreme mining slurries.
Integration of real-time machine learning models directly into sensor heads. By continuously evaluating glass membrane impedance changes alongside thermal differentials, the transmitter self-diagnoses fouling, aging, and junction poisoning, warning maintenance before failure.
Migration from legacy 4-20mA loops toward native Ethernet/IP, PROFINET, and encrypted MQTT protocols. Sensors publish calibrated analytical data directly to cloud platforms or AWS/Azure industrial IoT hubs, synchronizing physical water treatment plants with digital twin simulation models.
Ensuring frictionless site commissioning, regulatory inspection approvals, and field reliability across North America, Europe, the Middle East, and Southeast Asia.
Comprehensive enterprise environmental and quality management systems independently audited by SGS for repeatable batch production.
Full electromagnetic compliance (EMC) testing and lead-free hazardous substance restrictions for seamless European Union market entry.
Sanitary wetted materials certification ensuring zero toxic leachables during biopharmaceutical production and food-grade pasteurization.
pH5806 series recognized under municipal excellence frameworks for groundbreaking electrochemical durability and sensor lifespan.
Direct technical answers from our senior instrument engineers and international export directors.
Explore our complete range of certified water quality transmitters, optical sensors, and analytical wet chemistry cabinets ready for immediate worldwide dispatch.
Precision calibrated laboratory & process electrode delivering fast response times across aggressive high-temperature neutralization tanks.
Designed for continuous immersion in petroleum refining, wet flue-gas desulfurization (FGD), and acid dye baths.
Autoclave-resistant design ensuring accurate microbial kinetics feedback in sterile enzyme and recombinant protein bioreactors.
Standard 12mm glass body with universal S8 plug thread fitting standard laboratory and process side-entry immersion ports.
Infrared 860nm scattered light sensor with integrated ultrasonic wiper for wastewater effluent and drinking filter effluent monitoring.
Wall or panel-mount IP65 analyzer with backlit LCD, intuitive calibration wizard, and multi-channel telemetry for closed-loop chemical dosing.
Reagentless polarographic sensor with dedicated acrylic flow cell and continuous pH compensation for city drinking water distribution.
Integrated wall-mounted monitoring station combining pH, TDS, Conductivity, DO, and Residual Chlorine with wireless cloud synchronization.
Submit your fluid parameters, temperature and pressure ranges, required signal outputs, and project delivery timeline. Our technical sales engineers respond with detailed pricing and drawing packages within 4 hours.
