Product Description:
The DX-DO3000 Online Dissolved Oxygen Meter, developed by Wuxi
Daoxin Technology Co., Ltd., is a smart monitoring solution
designed to meet the rigorous demands of aquaculture environments, where oxygen concentration directly influences the health,
growth, and survival rate of aquatic organisms.
This analyzer features a fluorescence-based DO sensor that eliminates the need for membranes and electrolyte solutions,
making it ideal for long-term, maintenance-free deployment in
ponds, tanks, and recirculating aquaculture systems (RAS). It
offers a high resolution of 0.01 mg/L and a fast response time (≤10
seconds), ensuring real-time and accurate monitoring of dissolved
oxygen levels.
Equipped with automatic temperature compensation over a range of 0–80°C, the DX-DO3000 adapts to diurnal and
seasonal temperature fluctuations in both indoor and outdoor
farming environments. It supports both analog (4-20mA) and digital RS485 outputs, allowing for seamless integration with oxygen control
systems, alarms, or cloud-based remote monitoring platforms.
Built for reliability, the sensor comes with anti-bubble and anti-fouling features, ensuring stable performance even in aerated or nutrient-rich
aquaculture water. The housing, made of corrosion-resistant
materials, ensures long service life under saline, brackish, or
freshwater conditions.
Technical Parameters:
| Sensor Lifespan | Fluorescence Method: ≥ 2 Years (no Membrane Loss); Membrane Method:
6 To 12 Months (requires Regular Maintenance) |
| Installation | Immersion / Flow-through (Flange Option) |
| Measurement Accuracy | ±1% FS Or ±0.1 Mg/L |
| Sensor Type | Fluorescence Method: No Membrane, Resistant To Contamination;
Membrane Method: Replaceable Diaphragm (electrolyte Required) |
| Response Time | ≤ 10s (Seconds) |
| Temperature Compensation Range | 0 ～ 80 ℃ (Automatic Or Manual Compensation) |
| Measurement Principle | Luminescent Or Polarographic Membrane (Membrane Method) |
| Signal Output | 4-20mA, RS485 (Modbus RTU) |
| Flow Velocity | ≥ 0.2 M/s (flow Required For Membrane Method; Still Water Available
For Fluorescence Method) |
| Resolution | 0.01 Mg/L |
Applications:
The DX-DO3000 is widely applied in intensive fish and shrimp farming, especially where real-time oxygen control is crucial to avoid
stress or mortality during high-density cultivation. In pond aquaculture, it can be installed with solar-powered systems and used to
automate aerator startup, ensuring oxygen levels stay within
optimal thresholds throughout the day and night.
In recirculating aquaculture systems (RAS), the device provides continuous feedback for oxygen injection
systems and biofilter management, helping stabilize DO levels
across multiple tanks and reduce the risk of ammonia buildup or
anaerobic zones.
For hatcheries and nursery tanks, where young aquatic species are especially sensitive to oxygen
fluctuations, the DX-DO3000 offers high precision and stable
performance, allowing operators to detect and respond to changes
instantly.
It is also suitable for offshore and coastal aquaculture, thanks to its waterproof, corrosion-resistant design and the
option of installing flanged or submerged probes. The fluorescence sensor’s immunity to salinity drift and biofilm
buildup ensures long-term monitoring in marine conditions.
In smart aquaculture applications, the DX-DO3000 can be integrated
into IoT-based monitoring platforms, enabling remote control of aerators, real-time alerts via mobile
apps, and data analytics for farming optimization.
Support and Services:
Wuxi Daoxin Technology offers dedicated support for aquaculture
clients, including system design consultation, customized
integration with farm management platforms, and on-site calibration
training. Whether you operate small-scale hatcheries or
commercial-scale ponds, we assist you in building a dependable
oxygen monitoring infrastructure.
We provide full documentation in multiple languages, including installation guides, communication protocols, and maintenance recommendations specific to aquaculture scenarios. Our service team is available
for remote diagnostics, firmware upgrades, and troubleshooting, ensuring your DO system
remains responsive and accurate.
For clients using the fluorescence sensor, we offer extended warranty options and long-life probes designed for up to 2 years of continuous operation. Membrane probe
users can access replacement kits, diaphragm membranes, and
electrolyte refills on-demand.
We also assist with customized installation accessories, such as floating brackets, solar enclosures, and waterproof
extension cables. For customers using multiple DO meters across
large farms, we offer batch configuration support and real-time
dashboard integration assistance.
With DX-DO3000, aquaculture managers can reduce manual testing
frequency, avoid fish kills, and increase feed conversion
efficiency — all while improving sustainability and profitability.
