AQUA MINA Oxygen Meter and Warning System for Shrimp and Fish: A Reliable Helper for Aquaculture Pond Monitoring

However, manual water quality checks conducted at specific times may cause farmers to miss fluctuations occurring between measurements, particularly at night or when they are away from the farm.

To help farmers take a more proactive approach to water quality management, AQUA MINA offers the AQUA-DO300C Oxygen Monitoring and Alert System for Shrimp and Fish, featuring continuous 24/7 monitoring of dissolved oxygen (DO), pH, and water temperature, Wi-Fi connectivity, and alerts sent directly to smartphones through the Navis app.

Beyond measurement, the system also supports configurable alarm thresholds and control modes, helping farmers improve their ability to respond proactively to changing pond conditions.

1. Why Is Continuous Water Quality Monitoring Essential in Shrimp and Fish Farming?

Aquaculture pond environments are constantly changing. Water quality parameters may fluctuate throughout the day due to aquatic organisms' respiration, algae photosynthesis, organic matter decomposition, and changing weather conditions.

Three key parameters require particular attention:

Dissolved Oxygen (DO): Essential for the respiration of shrimp and fish. DO levels may decline at night, often reaching their lowest point shortly before sunrise. Prolonged oxygen depletion can cause stress, reduce feed intake, and negatively affect aquatic animal growth.

pH Level: Indicates the acidity or alkalinity of water. Changes in pH can affect the physiological functions of aquatic animals and influence the chemical forms and toxicity of certain compounds present in pond water.

Water Temperature: Affects metabolism and oxygen requirements in shrimp and fish. As water temperature increases, its oxygen-holding capacity generally decreases, making it important to monitor temperature and DO together.

Importantly, abnormal environmental fluctuations do not always occur when farmers are physically present to check their ponds.

Therefore, continuous 24/7 monitoring enables farmers to identify changes in water conditions in a timely manner, rather than relying solely on occasional measurements taken at specific times.

2. AQUA MINA Oxygen Monitoring and Alert System for Shrimp and Fish – A 24/7 Pond Monitoring Solution

The AQUA-DO300C Oxygen Monitoring and Alert System is designed for fixed installation at aquaculture farms, enabling continuous monitoring of important water quality parameters throughout daily operations.

The system uses an S20B sensor to measure DO, pH, and water temperature. Measurement data is transmitted to the AS300C display unit and can also be accessed through the Navis app via an Internet connection.

In particular, users can configure alarm thresholds. When measured values exceed the preset limits, the system can activate on-site warning lights and an audible alarm while simultaneously sending notifications to smartphones.

Key Features of the AQUA-DO300C

1. Continuous 24/7 DO, pH, and temperature monitoring: Collects water quality data at the sensor installation point.

2. Remote monitoring via the Navis app: Allows users to view readings and configure device settings through an Internet connection.

3. Threshold-based alerts: Supports configurable upper and lower alarm limits for parameters with alarm functionality.

4. Visual and audible alarms: Helps on-site farm personnel quickly recognize abnormal conditions.

5. Backlit LCD display: Provides real-time measurement readings directly at the installation site.

6. Four integrated control output ports: Supports connections to external equipment according to the system's technical configuration.

7. Two operating modes – CONTROL and MONITOR: Accommodates different monitoring and equipment control requirements.

By combining sensors, a display unit, and an application-based monitoring platform, the AQUA-DO300C goes beyond conventional water quality measurement, helping farmers manage pond environments more proactively through data-driven insights.

  

 

3. Monitor DO, pH, and Pond Water Temperature Anytime Through the Navis App

One of the key advantages of the AQUA MINA Oxygen Monitoring and Alert System is its ability to connect to smartphones through the Navis app.

Instead of visiting the installation site to check the display, farm managers can access the app to monitor water quality parameters remotely, provided the device is operating properly and has a stable Internet connection.

Remote Water Quality Monitoring

The system uses a 2.4 GHz Wi-Fi connection to transmit measurement data to the application.

Through Navis, users can monitor DO, pH, and temperature readings, helping them assess water conditions at the sensor location.

This feature is especially useful for farm owners who are not always on-site or need to stay informed about pond conditions outside regular working hours.

Receive Notifications When Readings Exceed Preset Limits

In addition to displaying measurement data, the Navis app can send notifications to smartphones when measured values fall outside the configured thresholds.

For example, when dissolved oxygen drops below the preset low-alarm threshold, the system can notify the farm manager of the abnormal condition.

This allows farmers to investigate the cause and implement appropriate corrective measures.

Track Environmental Fluctuations Over Time

Measurement data updated through the app also enables users to view charts and compare changes in water quality parameters over time.

Monitoring trends in DO, pH, and temperature helps farmers gain a better understanding of pond conditions, particularly during periods of significant environmental fluctuations.

The system's value lies not only in displaying measurements but also in making water quality data more accessible, supporting effective monitoring and informed decision-making at aquaculture farms.

4. Oxygen Alerts for Shrimp and Fish Ponds – Proactively Detect Abnormal Changes

In aquaculture operations, early detection of unfavorable changes in water conditions plays an important role in effective farm management.

The AQUA-DO300C Oxygen Monitoring and Alert System features an alarm mechanism based on user-defined thresholds.

Alerts When Measurements Exceed Preset Limits

The system supports two primary alarm types:

LOW ALARM: Triggered when measured DO or pH values fall below the configured lower alarm threshold.

HIGH ALARM: Triggered when measured DO or pH values exceed the configured upper alarm threshold.

When an alarm is triggered, the system can activate on-site warning lights and an audible alarm while sending notifications to smartphones through the app.

As a result, farm managers can receive information remotely, while on-site personnel can also recognize abnormal conditions directly at the farm.

  

 

Support Timely Responses to Environmental Changes

For example, shortly before sunrise, dissolved oxygen levels in aquaculture ponds may decrease because shrimp, fish, and other aquatic organisms continue to respire while photosynthesis does not occur at night.

If the DO reading at the monitoring point falls below the configured threshold, the system will issue an alert according to its settings.

This information gives farmers an opportunity to check pond conditions, aeration systems, and other relevant factors before selecting appropriate intervention measures.

It is important to note that alarm effectiveness depends on the configured thresholds, sensor placement, power supply, network connectivity, and equipment operating conditions. The system supports abnormal condition detection but does not entirely replace on-site inspections or technical response procedures.

5. Equipment Management with CONTROL and MONITOR Modes

In addition to water quality monitoring, the AQUA-DO300C features two operating modes designed to meet different operational needs.

MONITOR Mode – Focused on Monitoring and Alerts

In MONITOR mode, the device measures and monitors DO, pH, and water temperature.

The control outputs remain inactive, while the sensor and alarm systems continue operating according to their configurations.

This mode is suitable for farmers who want to monitor water quality and receive alerts without activating external equipment control functions.

CONTROL Mode – Supporting Expanded Equipment Control

In CONTROL mode, the control output terminals are enabled.

With four integrated control output ports, the system supports the development of external equipment connections based on specific operational requirements.

Control functions must be implemented in accordance with the approved wiring diagrams, load specifications, and supported technical configurations.

The combination of these two modes allows the AQUA-DO300C to support both water quality monitoring and equipment control solutions suited to the farm's existing infrastructure.

6. Benefits of Installing the AQUA MINA Oxygen Monitoring and Alert System at Aquaculture Farms

Proactive Water Quality Monitoring Day and Night

The system is designed for continuous monitoring, providing farmers with additional environmental data even when they are not physically present to inspect their ponds.

This is particularly valuable for tracking nighttime oxygen fluctuations or assessing the effects of weather conditions on pond water quality.

Reduced Dependence on Frequent On-Site Checks

Through the Navis app, farm managers can access water quality readings remotely, reducing the need to repeatedly visit the display unit solely to check measurements.

This allows working time to be allocated more effectively among pond inspections, equipment operation, and aquatic animal care.

Support for Data-Driven Water Quality Management

With DO, pH, and temperature data updated over time, farmers gain a stronger basis for evaluating changes in pond conditions.

This information can help them compare water quality trends with aeration schedules, weather conditions, and adjustments made during daily operations.

Greater Responsiveness to Abnormal Conditions

The combination of warning lights, an audible alarm, and app notifications helps farm managers recognize when readings at the monitoring point exceed the preset thresholds.

Instead of discovering a problem during the next scheduled inspection, farmers can receive alerts and verify pond conditions sooner.

  

 

7. Which Aquaculture Farming Models Are Suitable for the AQUA-DO300C?

With its fixed-installation design and continuous monitoring capabilities, the AQUA-DO300C is suitable for consideration in aquaculture operations that require ongoing monitoring of water quality parameters at designated locations.

Intensive and High-Tech Shrimp Farms: Supports continuous monitoring of DO, pH, and temperature as part of pond water quality management.

High-Density Fish Farms: Provides dissolved oxygen data to support the assessment of water conditions and aeration requirements.

Farms Requiring Remote Monitoring: Suitable for farm owners and managers who want to receive water quality data and alerts through their smartphones.

Farms Moving Toward Automation: Can utilize control output connectivity within technically compatible equipment control configurations.

For farms with multiple ponds, the number of monitoring points, sensor placement, and available infrastructure should be evaluated before developing an appropriate installation plan.

8. AQUA MINA – Supporting Aquaculture Farmers in Water Quality Management

As technology adoption advances across the aquaculture industry, water quality management is gradually evolving from periodic manual checks toward continuous monitoring, abnormal condition alerts, and data-driven decision-making.

The AQUA MINA AQUA-DO300C Oxygen Monitoring and Alert System supports this transition by providing continuous 24/7 monitoring of DO, pH, and water temperature, connectivity through the Navis app, and alerts when readings exceed preset thresholds.

  

 

For farmers, the system's value goes beyond measurement. It lies in providing timely access to water quality information, helping detect environmental fluctuations, and supporting greater control over daily pond operations.

AQUA MINA is committed to providing equipment solutions that meet the practical needs of aquaculture operations and promote technology adoption throughout the industry.

AQUA MINA – Proactive Monitoring, More Effective Aquaculture Water Quality Management.

Explore the product: AQUA MINA Oxygen Monitoring and Alert System for Shrimp and Fish – 24/7 Monitoring

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