Multi-Parameter Water Quality Sensor
The multi-parameter water quality sensor is designed to work seamlessly with Instrava multifunction water quality analyzers.
A single integrated probe enables simultaneous measurement of up to seven key water quality parameters, significantly reducing installation space, wiring complexity, and maintenance workload.
With digital RS-485 (Modbus RTU) output, automatic cleaning capability, and wide power supply compatibility, the sensor is ideal for continuous online monitoring in water treatment, chemical processes, environmental monitoring, and industrial wastewater applications.
Liquid Analysis Description
7-in-1 Digital Sensor-Measured Parameters
This integrated sensor supports the following parameters within one compact structure:
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pH
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Dissolved Oxygen (DO)
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Turbidity
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Conductivity / Salinity
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ORP (Oxidation Reduction Potential)
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Temperature
All parameters are measured simultaneously and transmitted digitally to the analyzer.
Working with Water Quality Analyzer
The sensor is specifically designed for integration with Instrava multifunction water quality analyzers.
All measured parameters are digitally transmitted via RS-485, ensuring:
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Stable signal transmission over long distances
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No signal drift compared with analog sensors
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Simplified wiring and commissioning
One analyzer can display, transmit, alarm, and log all parameters simultaneously.
Liquid Analysis Parameter
Multi-Parameter Sensor – 7 Parameters
| Parameter | pH Sensor | Dissolved Oxygen | Turbidity | Conductivity / Salinity | ORP | Temperature |
|---|---|---|---|---|---|---|
| Measuring Range | 0 ~ 14 pH | 0 ~ 20 mg/L | 0 ~ 1000 NTU | 0 ~ 5000 µS/cm | -1500 mV ~ +1500 mV | 0 ~ 50 ℃ |
| Accuracy | ±0.1 pH | ±0.3 mg/L | ±5% or ±3 NTU | ±1.5% F.S. | ±6 mV | ±0.3 ℃ |
| Resolution | 0.01 pH | 0.01 mg/L | 0.1 NTU | 1 µS/cm | 1 mV | 0.1 ℃ |
General Specifications
| Item | Specification |
|---|---|
| Output Signal | RS-485 (Modbus RTU) |
| Cleaning Method | Automatic cleaning |
| Power Supply | 12–24 VDC ±5% |
| Cable Length | Standard 10 m (customizable) |
Instrava OEM/ODM
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
Can multiple parameters be measured simultaneously without interference?
Yes. Each parameter uses an independent sensing element and digital signal processing.
All data are transmitted via RS-485, eliminating cross-interference common in analog multi-sensor systems.
Why RS-485 (Modbus RTU) instead of 4–20 mA outputs?
RS-485 allows:
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Multi-parameter transmission over one cable
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Long-distance communication with strong anti-interference
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Easy integration with PLC, SCADA, and DCS systems
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No signal drift over time
This makes it ideal for complex water treatment and industrial environments.
How often does the sensor require maintenance?
Maintenance frequency depends on water quality.
With automatic cleaning enabled, typical inspection cycles are:
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Clean water: 3–6 months
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Wastewater or sludge: 1–3 months
Automatic cleaning significantly reduces manual intervention.
Can the sensor be calibrated on site?
Yes. Calibration is performed through the connected Instrava water quality analyzer.
Step-by-step calibration guidance and output verification are supported to minimize operational errors.
Is the sensor suitable for harsh chemical or industrial wastewater?
Yes. The sensor is designed for continuous operation in industrial environments such as:
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Chemical processing
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Power plants
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Municipal and industrial wastewater
Material selection and cleaning functions help maintain long-term stability.
Can one analyzer manage multiple sensors or monitoring points?
Yes. Instrava multifunction analyzers can be configured to support:
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Multiple sensors
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Multiple monitoring points
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Centralized data acquisition and alarm management
This is ideal for large-scale plants and distributed monitoring systems.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
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