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Seeed Studio  |  SKU: 314990633

Seeed Studio | Industrial Fluorescence Dissolved Oxygen Sensor (RS485 Modbus RTU)

Regular price €342,00
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A maintenance-free, optical dissolved oxygen sensor designed for long-term industrial immersion, providing high-stability measurements without oxygen consumption.

  • Optical Precision: Fluorescence technology ensures zero drift.
  • No Maintenance: No electrolyte or membrane replacement needed.
  • IP68 Rated: Stainless steel body for harsh wastewater environments.

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Description

The Seeed Studio Industrial Dissolved Oxygen (DO) Sensor utilizes advanced fluorescence-based optical technology to deliver superior accuracy in water quality monitoring. Unlike traditional electrochemical sensors, this optical probe does not consume oxygen during measurement, meaning it requires no minimum flow rate or stirring. Its stainless steel, IP68-rated construction is engineered for permanent immersion in sewage treatment plants, aquaculture tanks, and environmental research sites, providing a "set and forget" solution for critical DO and temperature tracking.

Advanced Optical Sensing

Zero Oxygen Consumption Measures accurately even in stagnant water without the need for flow or constant stirring.
No Consumables Eliminates the frequent replacement of membranes and electrolyte solutions found in polarographic probes.
Modbus RTU Comms Standard RS485 interface for seamless connection to PLCs, RTUs, and LoRaWAN Modbus DTUs.
High Frequency Stability Provides fast response times with internal temperature compensation for dynamic water environments.

Water Management Use Cases

Aquaculture & Fish Farming: Monitor oxygen levels in real-time to prevent mass mortality and optimize feeding efficiency.
Sewage & Wastewater Treatment: Control aeration processes effectively by tracking dissolved oxygen in biological treatment tanks.
Surface Water Research: Conduct long-term hydrological studies in rivers and lakes with minimal site visits.

Technical Integration

The sensor operates on a 12V to 24V DC power supply and outputs data via RS485 Modbus RTU. For wireless deployment, it is perfectly compatible with SenseCap series LoRaWAN transmitters. The probe features a 10-meter reinforced cable and a standard 3/4" NPT thread for flexible pipe or submerged mounting. Calibration is only required every 3 to 6 months depending on the organic load of the water. For professional support on water quality architecture, contact the ShopIoT engineering team.

Specifications

  • Primary Communication Protocol
    RS485
  • Configuration Method
    Software (via RS485)
  • Environment Rating
    Outdoor, Industrial
  • IP Rating
    IP68
  • Operating Temperature
    0°C to 45°C
  • Enclosure Material
    Stainless Steel
  • Power Consumption
    < 0.5W
  • Measurement Technology
    • Dissolved Oxygen: Fluorescence (Optical) Sensing
    • Temperature: Thermistor (NTC)
  • Measurement Range
    • Dissolved Oxygen: 0 to 20 mg/L (or 0 to 200% Saturation)
    • Temperature: 0°C to +45°C
  • Measurement Accuracy
    • Dissolved Oxygen: ±2% F.S.
    • Temperature: ±0.5°C
  • Measurement Resolution
    • Dissolved Oxygen: 0.01 mg/L
    • Temperature: 0.1°C
  • Interfaces (I/O)
    RS485 (Modbus RTU)
  • Monitoring Parameters
    Dissolved Oxygen (DO), Temperature

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