Portable Dissolved Oxygen Meter
In wastewater treatment, aquaculture, environmental monitoring, and laboratory analysis, accurate dissolved oxygen (DO) measurement directly impacts biological process efficiency, energy optimization, and regulatory compliance.
The Instrava Portable Dissolved Oxygen Meter is engineered to provide high-precision DO measurement with both membrane and optical fluorescence probe options, allowing users to select the most suitable technology based on maintenance strategy and operational environment.
With triple compensation (temperature, salinity, altitude), upgraded sealed protection design, and stable ±3% FS accuracy, this instrument ensures reliable performance across varying environmental conditions. Designed for field engineers, plant operators, and laboratory technicians, it balances measurement stability, ease of use, and long-term cost efficiency.
Liquid Analysis Description
Portable Dissolved Oxygen Meter Typical Application Scenarios
-
Municipal and industrial wastewater treatment plants
-
Aeration tank and biological process monitoring
-
Aquaculture and fishery oxygen management
-
Surface water and environmental field surveys
-
Laboratory water quality analysis
-
Remote or outdoor monitoring requiring portable operation
The instrument supports both routine process control and mobile environmental inspections.
Portable Dissolved Oxygen Meter Engineering Advantages
Dual Technology Options
-
JE8803 (Membrane Method): Traditional electrochemical measurement with reliable performance.
-
JE8803A (Optical Fluorescence Method):
-
No membrane cap
-
No electrolyte filling
-
No polarization required
-
Reduced calibration frequency
-
Resistant to H₂S, heavy metals, oils, acids, and alkalis
-
Provides flexibility for procurement strategies and operational environments.
Triple Compensation for Precision Control
Dissolved oxygen is influenced by temperature, salinity, and altitude. This meter integrates:
-
Automatic Temperature Compensation (ATC)
-
Salinity Compensation (0–42 ppt)
-
Altitude Compensation (0–3500 m)
Ensuring stable and accurate readings across variable site conditions.
Stable & Durable Construction
-
Upgraded sealed body with triple protection structure
-
Effectively prevents moisture and water ingress
-
Large LCD display (41 × 50 mm) with backlight
-
Compact ergonomic design (70 × 35 × 167 mm)
Optimized for field durability and ease of handling.
User-Oriented Operation
-
100% air saturation calibration
-
99 data manual storage records
-
Automatic shutdown after 10 minutes of inactivity
-
Temperature unit switch (°C / °F)
-
High-precision probe with 0.1 mg/L resolution
Supports efficient workflow and reduces operational errors.
Portable & Energy Efficient
-
Powered by 4 × 1.5V AAA batteries
-
Lightweight handheld structure
-
Approx. 3.5 m probe cable for flexible measurement
Ideal for on-site deployment and extended field operation.
Liquid Analysis Parameter
Portable Dissolved Oxygen Meter Technical Specifications
Measurement Parameters
| Parameter | Membrane Method | Optical Fluorescence Method |
|---|---|---|
| Measuring Range | 0.0–30.0 mg/L | 0.0–20.0 mg/L |
| Saturation Range | 0–199% | 0–199% |
| Resolution | 0.1 mg/L | 0.1 mg/L |
| Accuracy | ±3% FS | ±3% FS |
| Calibration | 100% air saturation | 100% air saturation |
Temperature Parameters
| Parameter | Specification |
|---|---|
| Temperature Range | 0.0–60.0°C |
| Resolution | 0.1°C |
| Accuracy | ±0.5°C |
| Temperature Unit | °C / °F Switchable |
| Automatic Temperature Compensation | Supported |
Compensation & Storage
| Parameter | Specification |
|---|---|
| Salinity Compensation | 0–42 ppt |
| Altitude Compensation | 0–3500 m |
| Data Storage | 99 manual records |
Mechanical & Electrical Parameters
| Parameter | Specification |
|---|---|
| LCD Size | 41 × 50 mm (Backlit) |
| Probe Cable Length | Approx. 3.5 m |
| Power Supply | 4 × 1.5V AAA batteries |
| Instrument Size | 70 × 35 × 167 mm |
| Automatic Shutdown | 10 minutes inactivity |
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.
What is the difference between membrane and optical (fluorescence) DO models, and how should we choose?
From an engineering standpoint, the membrane model (JE8803) is cost-effective and suitable for routine field testing with standard maintenance schedules.
The optical fluorescence model (JE8803A) is designed for higher stability and lower lifecycle cost. It requires:
-
No membrane replacement
-
No electrolyte refilling
-
No polarization time
-
Less frequent calibration
For continuous field deployment, aquaculture farms, wastewater plants, or environments containing H₂S, heavy metals, oil, or corrosive media, we recommend the optical version for operational stability and reduced downtime.
How does the meter ensure accuracy under varying environmental conditions?
Dissolved oxygen concentration is directly influenced by temperature, salinity, and altitude. Instrava integrates triple compensation mechanisms:
-
Automatic Temperature Compensation (ATC)
-
Salinity Compensation (0–42 ppt)
-
Altitude Compensation (0–3500 m)
This design ensures reliable DO readings across freshwater, seawater, plateau regions, and industrial process environments.
What is the expected maintenance workload for the probes?
Membrane Model:
-
Periodic membrane cap replacement
-
Electrolyte refill
-
Calibration after maintenance
Optical Model:
-
No membrane
-
No electrolyte
-
No polarization
-
Resistant to chemical interference
For procurement managers evaluating total cost of ownership (TCO), the optical model significantly reduces maintenance labor and consumables over time.
Can this meter be used for aquaculture and wastewater compliance testing?
Yes. With measurement ranges up to:
-
0.0–30.0 mg/L (membrane)
-
0.0–20.0 mg/L (optical)
-
0–199% saturation
The device supports applications including:
-
Aquaculture pond oxygen management
-
Municipal wastewater treatment
-
Environmental field inspection
-
Laboratory water analysis
-
Industrial process monitoring
Its ±3% FS accuracy and 0.1 mg/L resolution meet most field compliance and operational control requirements.
Is the device suitable for field deployment in humid or wet environments?
The upgraded sealed housing features a triple-protection structure to prevent moisture and water ingress. Combined with:
-
Backlit large LCD (41×50 mm)
-
3.5 m probe cable
-
10-minute auto shut-off
-
Battery-powered portability
It is optimized for on-site and mobile measurement scenarios.
Does the device support data logging for reporting and traceability?
Yes. The meter allows manual storage of up to 99 data records, supporting:
-
Field inspection documentation
-
Compliance sampling records
-
Operational adjustment logs
For engineering teams that require traceability but do not need continuous online logging systems, this provides practical, lightweight data retention functionality.
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.
