China High Temperature (0-130℃) pH Sensor With Temperature
Rugged glass electrode engineered to withstand high temperatures and rapid thermal cycling in aggressive bio-fermentation process lines.
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Direct From Shanghai Manufacturing Facility
High-Precision Turbidity & Analytical Water Instrumentation
Pre-calibrated in-house, aged for 48 hours, and integrated with multi-protocol interfaces (RS485 Modbus RTU, 4-20mA) for seamless DCS, PLC, and IoT edge deployments.
Wholesale High-temperature S8 Connector pH Sensor
Standardized S8 connector geometry providing rapid plug-and-play installation for batch reactors, SIP systems, and pharmaceutical autoclaves.
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Wholesale High Temperature (0-130℃) pH Sensor Supplier
Heavy-duty electrolyte gel construction resistant to protein poisoning, ionic interference, and extreme hydrostatic working pressures.
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China High-temp pH Sensor Used Pharmaceutical Fermentation
Precision biopharma-grade electrode certified for repeatable clean-in-place (CIP) and steam-in-place (SIP) industrial processes.
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pH5806 High Temperature pH Sensor
Awarded Shanghai Brand certification, providing drift-free performance and exceptional longevity under harsh chemical and thermal stresses.
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DOG-208FA High Temperature Dissolved Oxygen Sensor
Polarographic dissolved oxygen electrode designed for hot bioprocess broths and critical continuous fermentation bioreactor loops.
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IOT-485-pH Digital Online pH Sensor
Direct RS485 Modbus RTU communication without intermediate transmitters, saving cabinet footprint and wiring overhead in automated sites.
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ZDYG-2088-01QX Online Turbidity Sensor
Infrared scattered-light turbidity and TSS analyzer equipped with automatic self-cleaning wipe mechanisms to prevent optical fouling.
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Direct Factory Infrastructure
Verified OEM/ODM Turbidity Transmitter Capacity
Headquartered in Shanghai, Shanghai BOQU Instrument operates two modern production hubs (Kangqiao and Lingang) delivering mission-critical instrumentation worldwide.
2007
Year Founded
4,632m²
Production Footprint
200+
R&D & Engineers
100,000+
Annual Sensor Output
100+
Countries Served
2,000+
Enterprise Clients
Technical Whitepaper & Market Insights
Evolution of Industrial Turbidity & TSS Sensing Systems
Navigating global regulatory shifts from ISO 7027 and US EPA 180.1 toward autonomous, self-diagnosing optical sensor architectures.
ISO 7027 vs. EPA 180.1 Optical Alignment
Modern procurement demands strict adherence to photometric compliance standards. Infrared 860nm LED emitters (ISO 7027) mitigate sample coloration interference across wastewater effluents, while tungsten filament light sources (EPA 180.1) satisfy regulatory compliance across North American potable drinking water frameworks.
- Near-IR 860nm Optics: Zero interference from dissolved color hues.
- Tungsten Source: Ultra-sensitive response for low-NTU drinking limits (<0.1 NTU).
Digital Smart Transmitters & Edge Processing
The instrumentation paradigm has migrated from vulnerable high-impedance analog sensor cables to intelligent edge transducers. With onboard microcontrollers digitizing raw optical signals at the probe tip, process data is converted to Modbus RTU or 4-20mA signals resistant to plant electromagnetic noise.
- Internal Calibration Tables: Multipoint linearization stored on the probe.
- Direct Cloud Interfacing: RS485 connectivity direct to IoT gateways and SCADA.
Anti-Fouling & Optical Auto-Cleaning Systems
Biofouling, algae adhesion, and suspended particle crystallization represent the leading failure modes in online turbidity monitoring. Modern industrial transmitters feature integrated mechanical wiper assemblies and pressurized air-wash purge circuits to slash field maintenance cycles.
- Fluororubber Wiper: Automated interval cleaning prevents biofilm formation.
- Optical Window Sapphire Coating: Scratch-resistant for abrasive silica slurries.
Engineering Applications
Macro-Industry Analytical Solutions
How global system integrators and EPC contractors specify BOQU turbidity transmitters to secure regulatory compliance and optimize real-time chemical dosing.
Potable Water Purification
Continuous monitoring of raw inlet water, coagulation clarification stages, sand filter effluent, and distribution pumping headers. Sub-0.01 NTU sensitivity enables immediate notification of filter breakthrough and membrane rupture.
Wastewater & Sludge MLSS
Dual-beam infrared absorption configurations accurately report Mixed Liquor Suspended Solids (MLSS) up to 50,000 mg/L in aeration basins, ensuring stable return activated sludge (RAS) and waste activated sludge (WAS) mass balances.
Thermal Power SWAS Loops
Boiler feed water, steam condensates, and cooling tower circulating circuits demand ultra-trace clarity. Inline turbidity sensors detect iron oxide erosion and resin particulate leaks to protect turbines from severe scale erosion.
Bio-Fermentation & CIP
Sanitary optical flow cells detect phase separation in broth processing lines and monitor phase change boundaries during Clean-In-Place rinse cycles, significantly reducing valuable product loss and water consumption.
Selection & Integration Guide
Turbidity Transmitter & Sensor Selection Matrix
Compare operational boundaries, measurement optics, and engineering specifications for optimal site integration.
| Series Model | Optical Principle | Measurement Range | Resolution / Accuracy | Wetted Materials | Outputs & Protocols |
|---|---|---|---|---|---|
| TB-2088-01 (Low-NTU) | 90° Scattered Light (ISO 7027, 860nm LED) | 0.001 to 40.00 NTU | ±1.5% FS, 0.001 NTU | SS316L, Sapphire Glass, EPDM | 4-20mA, RS485 Modbus, Relay Alarms |
| TB-2088-02 (Industrial) | Dual-Beam 90° & 180° Ratio Method | 0.01 to 4,000 NTU / FNU | ±2.0% FS, 0.01 NTU | Titanium / POM Housing, Sapphire | Isolated RS485 RTU, Programmable Relay |
| TSS-6099 (High Solids) | 135° Backscattered Infrared Detection | 0.0 to 50,000 mg/L (50 g/L) | ±2.5% FS, 1 mg/L | 316L Stainless Steel, PVDF Window | Dual 4-20mA, Modbus RTU, 24VDC/220VAC |
| TB-Sanitary (Food & Bio) | Forward 11° + 90° Dual Scatter Optics | 0.0 to 1,000 NTU / EBC | ±1.0% FS, 0.01 NTU | 316L (Ra < 0.4µm), PEEK, Tri-Clamp | RS485 Modbus, Wireless IoT Option |
Global Compliance & Support
International Certifications & Field Reliability
Ensuring frictionless site acceptance, third-party audit clearance, and long-term instrument stability across global jurisdictions.
ISO 9001 / 14001 & CE Directives
Every turbidity transmitter is assembled under strict ISO 9001 quality management systems. Equipment complies fully with European Electromagnetic Compatibility (EMC Directive 2014/30/EU) and Low Voltage Safety standards (LVD 2014/35/EU).
Formazin Multi-Point Factory Calibration
Instruments undergo NIST-traceable multi-point calibration utilizing primary Formazin standard suspensions. Built-in linearization algorithms correct for detector degradation and ambient temperature fluctuations.
OEM Private Labeling & Custom Firmware
BOQU provides turnkey OEM services to instrumentation brands across Europe, the Americas, and APAC, including custom housing colors, bespoke communication firmware, and dedicated packaging configurations.
Next-Generation Instrumentation
Turbidity Technology Roadmap & AI Integration
Pioneering the transition toward autonomous water treatment via machine-learning predictive maintenance and multi-wavelength spectroscopy.
AI Predictive Fouling Detection
Next-gen firmware utilizes light scattering gradient dynamics to detect early biofilm formation and optical fogging before measurement drift occurs, automatically scheduling targeted wiper or purge cycles.
Direct Cloud NB-IoT / LoRaWAN
Eliminating roadside analyzer panels in remote surface water and environmental monitoring stations through battery-optimized, native cellular IoT and low-power long-range wireless telemetry.
Multi-Spectral Turbidity & COD Fusion
Simultaneous UV254 absorption and multi-angle infrared scattering across a single monolithic optical probe to deliver co-derived COD, TOC, SAC, and turbidity measurements without chemical reagents.
Expert Inquiries
Frequently Asked Questions by Overseas Buyers
Clear, direct technical responses from Shanghai BOQU's instrumentation engineering team.
Is BOQU a direct manufacturer or a trading company?
BOQU is a direct manufacturer. Founded in 2007, Shanghai Boqu Instrument Co., Ltd. designs, engineers, produces, and tests sensors and online transmitters across two owned Shanghai facilities (Kangqiao and Lingang) covering 4,632 m² of floorspace, supported by 200+ employees and an annual output exceeding 100,000 instruments.
How do you overcome air bubble and stray light interference?
BOQU turbidity transmitters utilize pulsed 860nm LED sources modulated at specific frequencies to eliminate ambient lighting effects. For dissolved micro-bubbles, our specialized flow-through degassing chambers equalize line pressure and route bubble streams away from the primary optical measurement zone.
What communication outputs are available for SCADA/PLC integration?
Standard transmitters include dual isolated 4-20mA analog loops and industrial RS485 Modbus RTU ports. Digital sensors can communicate straight to edge PLC or RTU hardware over RS485 without requiring a secondary panel transmitter, optimizing CAPEX and installation footprint.
Can BOQU sensors withstand clean-in-place (CIP) and autoclaving?
Yes. Our high-temperature analytical electrodes and bioprocess sensors (such as the pH5806 and DOG-208FA) are validated in China's first dedicated high-temperature sensor laboratory to withstand repeated steam sterilization cycles up to 130℃ without electrolyte crystallization or zero-point drift.
What is the typical calibration interval and life expectancy?
Optical turbidity sensors in potable water systems typically operate reliably with 6-month calibration verification routines. In heavy wastewater containing active biological loads, our self-cleaning wiper mechanisms preserve optical accuracy, requiring simple periodic visual checks every 3 months.
Do you support OEM and private labeling for international instrumentation brands?
Yes. We engineer private-label solutions for dozens of European and American brand partners. Services cover customized front fascias, bespoke firmware Modbus register layouts, custom cable assemblies, specific measurement range calibrations, and neutral/custom branded packaging.
Global Catalog & Production Matrix
Explore BOQU Industrial Water Quality Instruments
Complete instrumentation systems for municipal networks, power plant SWAS, chemical processing, and agricultural dosing loops.
DCA130 Online pH & EC Dual Channel Analyzer
Monitors pH and electrical conductivity simultaneously on a single wall-mount controller, reducing cabinet footprint in RO and cooling towers.
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MPG-6099Plus Multi-Parameter Analyzer Panel
Integrated turn-key panel combining turbidity, residual chlorine, pH, conductivity, and temperature for secondary municipal drinking water stations.
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pHG-2081Pro Industrial Online pH Transmitter
Industrial pH/ORP transmitter engineered with isolated 4-20mA outputs and dual alarm relays for closed-loop neutralization dosing control.
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SJG-2083CS Online Acid & Alkali Concentration Meter
Inductive toroidal conductivity measurement designed for corrosive acid/alkali pipelines and pharmaceutical CIP rinse validation.
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Online Residual Chlorine Analyzer
Continuous amperometric residual chlorine monitoring for drinking water networks, cooling towers, and municipal disinfection tanks.
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Online Silicate / Phosphate / Sodium SWAS Analyzer
Sub-ppb trace wet-chemistry colorimetric instrumentation safeguarding ultra-high-pressure steam boilers and turbines against silica scale deposition.
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TOC-3042 Online Total Organic Carbon Analyzer
Direct UV-persulfate oxidation TOC measurement for pharmaceutical purified water (WFI), semiconductor ultrapure loops, and river monitoring.
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Online COD / TP / TN / NH₃-N Effluent Analyzer
Automated digestion and colorimetric chemistry systems ensuring continuous environmental compliance reporting at industrial outfalls.
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Consult Application Engineers
Specify Your Turbidity & Water Analysis Configuration
Direct factory engineering support for OEM custom sensor integration, tender bidding specifications, and custom range calibrations.