The RDO Trio is a new generation compact optical DO sensor that combines dissolved oxygen, conductivity, and temperature measurements in a single device. Real-time salinity compensation ensures maximum accuracy in challenging environments.
Key Features
3-in-1 Measurements
Dissolved oxygen, conductivity, and temperature in one compact sensor with real-time salinity compensation.
Copper Antifouling Guard
Specially designed guard inhibits biological fouling, extending the time between maintenance visits.
Integrated Wiper
Automatic sensor surface cleaning reduces maintenance frequency and ensures stable readings even in demanding environments.
Intelligent Wiping
When DO levels drop below a set threshold, the sensor automatically cleans and re-measures – eliminating false alarms.
Technical Highlights
Unlike traditional electrochemical methods, the RDO Trio uses optical luminescence quenching technology – no membranes or electrolytes are required, and the sensor does not consume oxygen during measurement. This means more accurate readings and lower operating costs.
Dissolved oxygen (DO), conductivity, temperature
Modbus RS485 – easy integration with PLCs and telemetry systems
Replaceable RDO Smart Sensor Cap with pre-loaded calibration coefficients
EPA-approved optical luminescence quenching method
Integrated wiper with slip clutch (also available without wiper)
Ready-to-Deploy Remote Monitoring Solutions
For aquaculture, environmental monitoring, and other water quality application
Basic set (RDO Blue sensor)
An economical solution for dissolved oxygen monitoring. The kit includes an In-Situ RDO Blue optical sensor, a 10 m cable, a UC501 NB-IoT controller, and a SIM card. Suitable for freshwater environments – ponds, pools, RAS systems where salinity does not change and fouling is not a major problem.
Standard set (RDO Trio without cleaner)
Improved solution with a new generation 3-in-1 sensor. The kit includes an RDO Trio sensor (without cleaner), a 10m cable, a UC501 NB-IoT controller, and a SIM card. Measures dissolved oxygen, conductivity, and temperature simultaneously with automatic salinity compensation. Suitable for seawater, estuaries, and environments with variable salinity.
2225,00 € + 5 €/month IoT portal
Self-cleaning kit (RDO Trio with cleaner + solar panel)
Fully autonomous solution with self-cleaning sensor. The kit includes an RDO Trio sensor with built-in cleaner, 10m cable, UC501 NB-IoT controller, 5W solar panel, and SIM card. The sensor keeps the surface clean, while the solar panel provides power. Suitable for remote locations without electricity and environments with a high risk of overgrowth.
2680,00 € + 5 €/month IoT portalAbout the IoT portal
The IoT portal is a cloud platform where you can view sensor data in real time from anywhere – on your computer or phone. The portal provides graphs, historical data, and the option to set alerts if the DO level falls below a certain threshold.
5,00 €/month – 1 user, 1 device
+3,00 €/month – each additional user
RDO Trio Products
RDO Trio with sensorless cleaner
1 840.00 €
- DO Range: 0-60 mg/L
- Conductivity Range: 0-350,000 µS/cm
- Temperature Range: -5 līdz 50°C
- Integrated Wiper:
- Salinity Compensation:
- Communication: Modbus RS-485
-
Max Pressure:10Bar
RDO Trio with integrated sensor cleaner
2 300.00 €
- DO Range: 0-60 mg/L
- Conductivity Range: 0-350,000 µS/cm
- Temperature Range: -5 līdz 50°C
- Integrated Wiper:
- Salinity Compensation:
- Communication: Modbus RS-485
-
Max Pressure:10Bar
Durable twist-lock cable
335.00 €
- Cable Length:15 m (50 ft)
- Jacket Material: TPU (Poliuretāns)
- Vented:
- Termination: attīrīti un aplodēti
- Connector Type: Titāna Twist-Lock
- Break Strength: 127 kg (280 lbs)
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