Description
Optical Dissolved Oxygen Sensor for Hydroponics. Measure dissolved oxygen in commercial hydroponic, aquaponic and recirculating-water monitoring projects.
Specifications
The table describes the listed configuration. Confirm the ordered range, output variant, accessories and acceptance criteria before procurement.
| Parameter | Specification |
|---|---|
| Power | 12–24V DC |
| Measurement method | Fluorescence quenching |
| DO range | 0–20 mg/L |
| Resolution | 0.01 mg/L |
| Listed DO accuracy | ±2% full scale |
| Operating conditions | 0–50°C; pressure below 0.3 MPa |
| Temperature compensation | Pt1000 |
| Calibration | Two-point |
| Output | RS485 Modbus |
Selection and System Integration
Choose mounting and sampling positions that represent the circulating solution. Confirm the compensation settings, calibration procedure and replacement interval for the optical sensing element.
Installation and Application Notes
Keep the optical surface clean and inspect it according to the maintenance instructions. Avoid confusing aeration bubbles at the measurement point with the bulk solution condition. The sensor measures oxygen and does not itself provide aeration or guarantee crop performance.
Sample Evaluation
Before a larger order, check the selected sample against the agreed specification using representative operating conditions. Confirm wiring, power, output units and controller communication, then record reference measurements and any configuration changes. Agree on the required documents, packing and replacement components as part of the quotation.
Application FAQ
Is this the membrane-method version?
No. This page describes the fluorescence-method configuration from the supplied sheet. Its calibration and consumables must match that sensing method.
Request a Project Quotation
For optical dissolved oxygen sensor selection, send the following details so Wewin Smart Agri can help match the configuration and coordinate sample evaluation and a batch quotation:
- Expected DO and temperature range
- Solution composition, mounting depth and cleaning routine
- Controller register map, replacement parts and quantity
- Destination country, estimated order quantity and required delivery schedule
Send your application requirements for configuration review and quotation. Related project information is available in our agricultural sensor range.





