Process Probe
High Temperature (0-130℃) pH Sensor
Equipped with solid-state polymeric electrolyte and porous annular PTFE junction for extreme chemical streams.
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Direct OEM Catalog
Featured TDS & High-Temperature Process Electrodes
Factory-direct instruments certified under ISO 9001 and CE frameworks. Each inline probe undergoes rigorous 48-hour pressure-thermal aging and multi-point calibration prior to international dispatch.
Thermal Compensation
pH Sensor With Integrated Temp Probe
Embedded Pt100/Pt1000 RTD element providing dynamic Nernst slope correction across boiling industrial solutions.
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Quick Coupling
High-Temperature S8 Connector pH Sensor
Standard PG13.5 mechanical thread with IP68 coaxial S8 connection suitable for automated insertion fittings.
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Sanitary / Biotech
Fermentation Specialized pH Sensor
Certified non-cytotoxic gel, withstands SIP/CIP cycles with zero drift in high-density bacterial bioreactors.
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Certified Standard
pH5806 High Temp Industrial Sensor
Shanghai Brand recipient, designed specifically for extreme thermal cycling in pressurized steam applications.
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Dissolved Oxygen
DOG-208FA High Temperature DO Sensor
Polarographic dissolved oxygen transducer featuring stainless steel 316L body and autoclavable silicone membrane.
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Digital RS485
IOT-485 Digital Online Sensor
Direct-bus connection probe outputting calibrated Modbus RTU metrics, eliminating expensive standalone transmitters.
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Dual Transmitter
DCA130 Online pH & EC Dual Analyzer
Compact dual-channel controller calculating TDS, salinity, and conductivity while operating dynamic dosing relays.
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Industry Intelligence
Sensor De TDS: Global Industrial Status & Market Dynamics
Total Dissolved Solids (TDS) sensors serve as critical gatekeepers across automated water conditioning infrastructure. Understanding the physical principles and global supply chain dynamics allows procurement engineers to balance capital expenditure with drift-free operational longevity.
Global Market Landscape
The global demand for high-reliability TDS sensors is accelerating at an estimated 7.8% CAGR, spurred by strict zero-liquid-discharge (ZLD) directives in municipal water treatment, semiconductor ultra-pure rinse water fabrication, and large-scale seawater reverse osmosis (SWRO) facilities across APAC, the EMEA zone, and the Americas.
Factory Metrology & Correlation
Industrial "Sensor de TDS" instrumentation fundamentally tracks Electrical Conductivity (EC in µS/cm or mS/cm) and applies a mathematical conversion coefficient ($k_e$). BOQU manufacturing integrates software-switchable conversion factors ($k_e = 0.50$ to $0.70$) according to standard salt references (NaCl, 442, or KCl), preventing cross-regional analytical deviation.
Wholesale Sourcing Realities
Direct Tier-1 factory integration eliminates distributor margins while guaranteeing batch-to-batch electrode cell constant accuracy ($K = 0.01, 0.1, 1.0, 10.0$). Standardized wholesale orders secure turnkey compliance packages including traceable NIST certification sheets, third-party SGS metallurgical audits, and customized firmware registers.
2007
Founded In Shanghai
4,632 m²
Factory Footprint
100,000+
Annual Probes Built
100+
Countries Supplied
Direct Sourcing Matrix
Wholesale Sensor De TDS Pricelist & Engineering Guide
Indicative commercial pricing for system integrators, EPC engineering contractors, and water treatment distributors. High-volume custom OEM batches are discounted based on annual delivery schedules.
| Model / Sensor Series | Sensor Architecture | Operating Range & Temp | Ingress / Process Fitting | Typical Volume Price (USD) | Target Applications |
|---|---|---|---|---|---|
| TDS-Compact 100 | 2-Electrode Stainless Steel 316L (K=0.1) | 0.05 – 200 ppm (0 – 80℃) | IP68, 1/2" NPT Male Thread | $38.00 – $65.00 | RO Pure Water, Commercial Boilers, Potable Lines |
| TDS-Inductive 500 | Toroidal / Electrodeless PEEK Core | 10 – 100,000 ppm (0 – 130℃) | IP68, 1.5" Sanitary Clamp / Tri-Clamp | $195.00 – $320.00 | Heavy Wastewater, CIP Caustic Lines, Desalination |
| TDS-HighTemp Pro (pH5806 Series) | Platinum / Polymeric Junction Glass | 0 – 20,000 ppm (0 – 130℃) | PG13.5 Quick S8 Socket Thread | $85.00 – $140.00 | Sterile Fermentation, Thermal Chemical Processing |
| IOT-Digital 485-TDS | 4-Electrode Graphite Anti-Polarization | 0.1 – 50,000 ppm (-10 – 90℃) | IP68 Submersible, 3/4" NPT Thread | $110.00 – $185.00 | IoT Smart Agriculture, River Catchment, RAS Fish Farms |
| DCA-Combo Transmitter Suite | Dual-Channel Controller + Probe Assembly | Programmable TDS/EC/pH Modules | NEMA 4X / IP65 Panel Enclosure | $240.00 – $410.00 | Complete Industrial Skid Automation, Dosing Skids |
* FOB Shanghai pricing. Tier pricing applies to 50+ unit MOQs. Detailed quotations reflect cable extensions and custom sensor metallurgy.
Future-Proof Architecture
Technology Roadmap & Macro Industrial Solutions
The evolution of sensor de TDS systems hinges on digital integration, fouling resistance, and low-latency feedback algorithms capable of interfacing directly with cloud microservices and plant DCS infrastructures.
Edge Microcontrollers
Traditional millivolt analog loops suffer signal degradation across extensive plant cabling. The modern BOQU roadmap shifts toward embedded 32-bit DSP microprocessors directly within the sensor cap, running on-board fast Fourier transform (FFT) noise-filtering before streaming RS485 Modbus packets.
AI Predictive Drift Modeling
Electrode surface contamination causes false-low TDS readings. Integrating dynamic impedance analysis enables our controllers to differentiate between genuine mineral reductions and biofilm build-up, notifying control operators of cleaning schedules before process compliance fails.
Inductive Non-Fouling Geometry
For chemical and heavy wastewater applications, electrodeless toroidal transformers encapsulated in chemical-grade PEEK eliminate polarization error entirely, permitting maintenance-free continuous analysis in aggressive electrolytic streams.
Macro Automation Integration
Modular SCADA interfaces facilitate turnkey synchronization across variable frequency drive (VFD) booster pumps, automated RO membrane backwash sequencing, and chemical metering injection pumps to guarantee strict discharge effluent standards.
Field Deployment Case Studies
Localized Industrial TDS & Water Analysis Solutions
How BOQU instrumentation maintains precision inside rigorous operating environments worldwide.
Pharmaceutical Fermentation & Biotech
Microbial cultures synthesize high-value active pharmaceutical ingredients (APIs) only within narrow ionic profiles. In installations spanning India and Eastern Europe, BOQU high-temperature sterilizable sensors endure live 130℃ steam SIP sterilization without recalibration or electrolyte exhaustion.
Municipal RO Desalination Facilities
At regional water treatment skids in Southeast Asia and the Middle East, online TDS dual-channel transmitters maintain constant recovery ratio checks before and after reverse osmosis membranes, instantly detecting seal failure or salt passage breakthroughs.
Thermal SWAS & Boiler Feedwater
High-pressure steam turbines are vulnerable to mineral scaling from dissolved silica and sodium. In municipal waste-to-energy power facilities across China, BOQU SWAS sub-assemblies continuously track cation conductivity and micro-level TDS at parts-per-billion sensitivity.
Procurement & Tech FAQ
Frequently Asked Questions
Crucial insights for system integrators, plant managers, and international procurement specialists.
What is the core difference between Conductivity (EC) and Total Dissolved Solids (TDS)?
Electrical Conductivity (EC) measures the water’s ionic ability to pass electrical current, quantified in microSiemens per centimeter (µS/cm). Total Dissolved Solids (TDS) measures the total combined mass of all organic and inorganic substances dissolved in a molecular, ionized, or micro-granular suspended form, quantified in parts per million (ppm) or milligrams per liter (mg/L). Online TDS sensors measure electrical conductance and apply an empirical conversion factor ($TDS = EC \times k_e$). BOQU analyzers allow users to adjust this multiplier between 0.40 and 1.00 to match specific chemical matrices.
How does Shanghai BOQU Instrument ensure quality across wholesale OEM orders?
Every probe and transmitter manufactured across our Kangqiao and Lingang factories passes through a documented ISO 9001 and ISO 14001 workflow. Before dispatch, all sensors undergo an automated 48-hour burn-in aging cycle, high-pressure helium leak verification, and multi-point calibration against traceable standard buffer solutions. Probes carry CE, SGS, and FDA certifications as required.
How do temperature variations impact inline TDS measurements?
Ionic mobility accelerates as liquid temperatures rise, causing measured conductivity to elevate by roughly 1.8% to 2.2% per degree Celsius even if actual salt content remains static. BOQU industrial TDS sensors feature integrated Pt100, Pt1000, or NTC3950 temperature elements located adjacent to the electrode pins. The digital transmitter executes linear or non-linear temperature compensation back to a standardized reference base (usually 25℃).
Can BOQU sensor de TDS probes connect directly to our plant PLC without a transmitter?
Yes. Our IOT-485 digital sensor series embeds micro-transducer electronics directly inside the probe enclosure. These devices output calibrated RS485 Modbus RTU signals over standard industrial cabling, allowing direct interface with PLCs, DCS systems, SCADA platforms, or wireless IoT gateways without an external wall-mounted transmitter.
What are the lead times and minimum order quantities (MOQs) for wholesale buyers?
Standard sensor models maintain rolling inventory with dispatch within 3 to 5 business days. Custom OEM/ODM runs (including private labeling, proprietary cable length fittings, and bespoke cell constants) have an average production turnaround of 2 to 3 weeks. Minimum order quantities for private label OEM begin at 20 units per batch.
Comprehensive Lineup
Online Water Quality Analyzers & Transmitters
Explore multi-parameter wall mounts, optical turbidity elements, and wet-chemical compliance analyzers built for round-the-clock plant uptime.
Optical Measurement
ZDYG-2088-01QX Online Turbidity Sensor
860nm ISO 7027 infrared scattered light probe with optional integrated mechanical wiper for sludge and effluent monitoring.
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Turnkey System
MPG-6099Plus Multi-parameter Station
Skid-mounted panel analyzing pH, TDS, residual chlorine, and turbidity for secondary water supply networks.
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Process Transmitter
pHG-2081Pro Industrial Online Analyzer
IP65 housing, dual isolated 4-20mA loop outputs, high/low limit relays, and RS485 Modbus RTU communications.
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Concentration
SJG-2083CS Concentration Analyzer
Toroidal inductive meter tracking HNO3, H2SO4, HCl, and NaOH solution percentages in chemical regeneration lines.
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Disinfection
Online Residual Chlorine Analyzer
Amperometric constant-voltage sensor measuring free chlorine and chlorine dioxide without chemical reagent consumption.
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SWAS Power Plant
Silicate / Phosphate / Sodium Analyzer
Ultra-trace optical colorimetry monitoring parts-per-billion contaminants across high-pressure boiler feed steam loops.
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Organic Carbon
TOC-3042 Total Organic Carbon Analyzer
Catalytic UV oxidation method compliant with USP <643> and EP 2.2.44 for pharmaceutical-grade purified water loops.
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Environmental Outfall
Online COD / TP / TN / NH3-N Analyzer
Automated wet-chemical digestion platform verifying regulatory compliance with automatic cleaning and calibration.
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