Engineered to resist harsh chlorine, ozone oxidation, scale formation, and continuous temperature surges up to 130°C. Fully calibrated and tested under stringent ISO 9001 protocols.
Specialized polymeric gel electrolyte with steam sterilizability. Withstands aggressive chemical shocks and thermal cycles.
Features embedded PT100/PT1000 RTD for active Automatic Temperature Compensation (ATC) in turbulent hot water loops.
Constructed with dual-junction ceramic reference to inhibit sulfide and heavy metal poisoning in recirculating systems.
Standardized industrial PG13.5 thread and S8/VP plug for seamless replacement in legacy installations and European skids.
Award-winning flagship sensor with polymerized solid electrolyte and circular porous PTFE diaphragm to mitigate clog risks.
Precision polarographic optical/membrane design delivering linear response and rapid response in oxygenation balancing.
Direct RS485 Modbus RTU communications eliminating external transmitter cabinets. Integrated edge processing.
Near-infrared 860nm scattered light method with self-cleaning wiper, vital for water clarity in heavy bather loads.
Modern commercial spas, aquatic centers, wellness resorts, and high-temperature bio-fermentation facilities demand uncompromised real-time monitoring to satisfy strict international standards.
Elevated water temperatures in modern spas and industrial hydro-pools (36°C–40°C) dramatically accelerate bacterial propagation (such as Legionella pneumophila and Pseudomonas aeruginosa). The chemical reaction rates increase exponentially, depleting free chlorine rapidly while driving pH fluctuations that deactivate residual biocides. Traditional manual testing strips fail to detect lethal off-spec dips between checks.
Commercial aquatic complexes consume vast amounts of electrical and thermal energy. Integrating continuous automated ORP and pH sensors linked with Variable Frequency Drive (VFD) circulation pumps and precise peristaltic acid/alkali dosers reduces over-chlorination, saves up to 28% in active chemical expenditure, and extends HVAC and plumbing pipework lifespans by mitigating scaling and acidic pitting.
The global instrument landscape is moving away from error-prone analog mV signals toward isolated RS485 Modbus and industrial Ethernet. Digital spa sensors feature embedded microcontrollers holding unique calibration curves and diagnostic histories directly within the sensor body, enabling true plug-and-play field replacement without complex manual calibration steps on site.
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Transparent volume tiered pricing frameworks for system integrators, spa OEMs, water engineering firms, and municipal distributors. Custom cable lengths and private labeling available.
| Model Category | Key Operational Parameters | Electrolyte / Reference | Signal Protocol | MOQ Tier | Wholesale Ref Price (FOB) |
|---|---|---|---|---|---|
| pH5806 Series High-Temp Commercial Spa/Fermentation |
0–14 pH | 0–130°C Pressure: Up to 0.6 MPa |
Polymer Solid Gel Double Ceramic Junction |
Standard S8 / VP / Coaxial | 50 Units 500+ Units |
$45.00 – $68.00 Contact for OEM discount |
| IOT-485-pH Series Smart Digital Spa/Hydrotherapy |
0–14 pH | -10–80°C Internal ATC Sensor |
KCL Saturated Solid Anti-Poison Porous Ring |
RS485 Modbus RTU (Transmitter-Free) |
20 Units 200+ Units |
$65.00 – $92.00 Volume tiers applied |
| Constant Voltage Chlorine Amperometric Free Chlorine Sensor |
0–5.00 / 0–20.00 ppm 0–50°C | No Reagents Needed |
Bare Gold/Platinum Electrodes Flow Cell Hydrodynamic |
4–20mA / Modbus via Secondary Controller |
10 Units 50+ Units |
$180.00 – $240.00 Complete panel options |
| DOG-208FA Series Optical Dissolved Oxygen Probe |
0–20 mg/L (ppm) | 0–60°C Integrated Temperature Sensor |
Fluorescence Lifetime Optics No Electrolyte Consumption |
Modbus RS485 Isolated Standard Industrial Out |
10 Units 100+ Units |
$210.00 – $320.00 Includes calibration kit |
| ZDYG Turbidity Series Infrared Absorption Clarifier |
0–400 / 0–4000 NTU Automatic Silicone Scraper |
860 nm Near-IR LED Photodiode Receiver 90° |
RS485 Modbus RTU IP68 Immersion Body |
5 Units 50+ Units |
$310.00 – $450.00 Turnkey mounting pipe |
Navigating global public health legislation requires sensor instrumentation that satisfies regional aquatic hygiene standards, electrical safety rules, and toxicological certifications.
Complies with Model Aquatic Health Code (MAHC) guidelines. Sensors support fast response times (<30 seconds) to trigger automated chemical feed controllers when pH deviates from the 7.2–7.8 bracket or ORP drops below 650–750 mV.
Conforms to the stringent German DIN 19643 standards for public water treatment in wellness spas. CE certified electromagnetic compatibility (EMC) prevents electrical noise interference from high-power hydromassage blowers and pumps.
Wetted sensor bodies utilize chemically inert PVDF, PPS, and titanium housings. Our seals utilize USP Class VI / FDA-compliant fluorocarbon elastomers, preventing chemical leaching under continuous high-temperature exposure.
Through our comprehensive worldwide distributor network across more than 100 countries, BOQU supplies local stock reserves, fast regional warranty replacement, custom cabling harnesses, and localized system commissioning.
From luxury resort hot springs to industrial biological reactors, our sensors deliver repeatable, non-drifting data points under grueling conditions.
High temperatures (38–42°C), high organic bather loads (body oils, cosmetics), and intense turbulent aeration generate extreme sensor drift in ordinary electrodes. BOQU solid-gel high-temperature sensors eliminate reference contamination and bubble cavitation interference at the measurement bulb.
Bioreactors require absolute sterility and precise real-time pH and DO control to nurture active cell cultures. Our Shanghai Brand pH5806 and DOG-208FA withstand in-situ steam sterilization at 130°C (SIP) repeatedly without losing slope integrity or zero-point alignment.
Industrial Clean-in-Place (CIP) rinse cycles subject probe tips to alternating streams of 85°C caustic soda (NaOH) and concentrated nitric acid. BOQU heavy-duty flat-glass pH electrodes resist abrasive slurry damage while delivering reliable neutralization signals to control pumps.
Our Kangqiao and Lingang engineering laboratories continuously advance analytical chemistry, solid-state physics, and predictive AI diagnostics.
Next-generation firmware evaluates reference glass impedance and polarization drift dynamically. Rather than failing unexpectedly, sensors calculate Remaining Useful Life (RUL) and issue proactive cleaning or replacement alerts to operators via Modbus registers.
Migrating from fragile blown glass bulbs to Ion-Sensitive Field-Effect Transistor (ISFET) silicon chips. These shatterproof semiconductors withstand high mechanical turbulence and hot thermal expansion shocks in public bath installations.
Combining free chlorine, pH, ORP, electrical conductivity, and turbidity into a unified sub-miniature flow manifold with shared low-power IoT telemetry (LoRaWAN, NB-IoT), simplifying installation footprint in commercial hot tubs and spas.
Complete instrumentation platforms paired with our sensor range to automate chemical dosing, telemetry streaming, and environmental compliance reporting.
Simultaneous reading and closed-loop control of pH and electrical conductivity. Ideal for compact spa skid installations.
Turnkey pre-plumbed panel combining residual chlorine, pH, ORP, turbidity, and temperature with high-resolution touchscreen.
Robust IP65 aluminum enclosure with dual programmable SPDT relays for direct solenoid dosing pump activation.
Toroidal electrodeless sensor monitoring acid and alkaline bath concentration without fouling or electrode degradation.
Amperometric measurement maintaining constant disinfection safety in commercial aquatic and municipal distribution loops.
Trace level monitoring of silica, sodium, and phosphate ions for ultra-clean boiler feedwater and critical steam systems.
UV catalytic oxidation technology verifying organic purity in high-grade pharmaceutical water loops and high-load spas.
Automated digestion and optical colorimetry for COD, ammonia nitrogen, and heavy metals at facility outfalls.
Comprehensive engineering and commercial insights to support your procurement, integration, and operational workflows.
Consult directly with Shanghai BOQU's applications engineering team. We assist in sensor selection, chemical resistance audits, and provide wholesale volume pricing within 24 hours.
