Dissolved Oxygen Meter
In wastewater treatment, aeration control, aquaculture, and environmental monitoring, accurate dissolved oxygen (DO) measurement directly impacts process efficiency, energy consumption, and regulatory compliance. Traditional electrochemical DO sensors require electrolyte replacement, frequent calibration, and flow rate control—introducing maintenance burden and measurement uncertainty.
The Instrava Optical Dissolved Oxygen Meter adopts internationally leading fluorescence lifetime technology, based on the physical quenching principle of active fluorescence. Unlike membrane or polarographic methods, this optical solution does not consume oxygen during measurement, eliminating flow rate limitations and significantly reducing maintenance requirements.
With a response time as low as 20 seconds, automatic temperature and pressure compensation, and high mechanical protection (IP68 probe), this system delivers stable, fast, and reliable DO measurement in dynamic industrial environments.
Liquid Analysis Description
Dissolved Oxygen Meter Typical Application Scenarios
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Municipal and industrial wastewater treatment plants
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Aeration tank monitoring and process optimization
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Surface water and environmental monitoring
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Aquaculture and fishery oxygen management
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Research laboratories and field environmental surveys
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Unstable or fluctuating water bodies requiring high stability measurement
Designed for both portable field deployment and routine plant inspection, the instrument ensures high reliability in challenging environments.
Dissolved Oxygen Meter Engineering Advantages
Fluorescence Lifetime Technology
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No oxygen consumption during measurement
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No electrolyte replacement
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No flow rate limitation
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Minimal calibration frequency
This significantly reduces maintenance costs and improves long-term stability.
Fast & Stable Response
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20-second response time
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Accuracy: ±1% or ±0.3 mg/L (whichever is greater)
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Real-time temperature and air pressure compensation (50–115 kPa automatic)
Ensures reliable readings even in aeration tanks or fluctuating conditions.
Intelligent Handheld Platform
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Compatible with Yosemite Y600-A multifunction handheld system
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Automatic sensor recognition
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Supports USB data transmission and logging
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Built-in calibration parameters, pre-calibrated before delivery
Enables multi-parameter expansion including conductivity, turbidity, chlorophyll, BGA, OIW, and TSS.
Industrial-Grade Mechanical Design
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316L stainless steel probe housing
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IP68 probe protection / IP67 handheld unit
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Split waterproof structure for enhanced durability
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Max pressure resistance: 6 bar
Suitable for submerged and demanding field applications.
Portable & Field-Optimized
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Handheld unit weight: 460 g
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Probe weight: 204 g
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Powered by two 18650 rechargeable batteries
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Backlit large LCD display for easy reading
Optimized for long-duration outdoor inspections.
Liquid Analysis Parameter
Dissolved Oxygen Meter Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement Principle | Fluorescence method |
| Range | 0–20 mg/L or 0–200% saturation |
| Accuracy | ±1% or ±0.3 mg/L (larger value applies) |
| Temperature Range | 0–50°C |
| Response Time | 20 seconds |
| Maximum Pressure | 6 bar |
| IP Rating | IP68 |
| Probe Size | Φ26 mm × 175 mm |
| Cable Length | 5 m (customizable) |
| Probe Weight | 204 g |
| Calibration | One-point or two-point |
| Housing Material | 316L stainless steel |
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.
How does fluorescence DO technology reduce maintenance compared to electrochemical sensors?
Unlike membrane-based electrochemical sensors, the optical probe does not consume oxygen during measurement. There is no electrolyte replacement, no membrane aging, and no flow rate restriction. For plant operators and procurement teams, this means lower maintenance costs, reduced downtime, and more stable long-term operation.
Can this DO meter operate reliably in unstable aeration tanks?
Yes. The probe provides a fast 20-second response time and automatic temperature and pressure compensation. Even under fluctuating aeration intensity or turbulence, the fluorescence method ensures stable and repeatable readings without drift caused by oxygen consumption.
What is the expected lifecycle performance of the optical probe?
The fluorescent film is highly durable and does not degrade rapidly under normal wastewater conditions. Combined with the 316L stainless steel housing and IP68 protection rating, the probe is designed for long-term industrial deployment in submerged or high-pressure environments (up to 6 bar).
How does automatic compensation improve measurement accuracy?
The handheld unit features built-in real-time temperature and air pressure compensation (50–115 kPa). This eliminates manual correction errors and ensures DO values remain accurate across seasonal temperature changes or varying altitude conditions.
Is the system expandable for multi-parameter monitoring?
Yes. The handheld platform supports automatic recognition of compatible digital sensors, including conductivity, turbidity, chlorophyll, BGA, oil-in-water (OIW), and TSS. This allows engineering teams to integrate multi-parameter water quality monitoring on a single portable platform, reducing equipment redundancy.
How does this solution support procurement lifecycle and total cost optimization?
With no electrolyte replacement, minimal recalibration needs, durable construction, and rechargeable battery operation, the system significantly reduces consumables and service frequency. For procurement managers, this translates into lower total cost of ownership (TCO) and predictable maintenance budgeting over the instrument lifecycle.
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.
