Dalian Yheng Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of dissolved oxygen sensor | rs485 modbus digital do probe in China. Welcome to buy high quality dissolved oxygen sensor | rs485 modbus digital do probe in stock here from our factory. If you have any enquiry about customized service, please feel free to email us.
Key Features
- Fluorescence quenching measuring principle, no oxygen consumption, no electrolyte required
- IP68 probe protection grade, working temperature: -20~50℃
- Built‑in automatic temperature compensation for accurate DO readings
- RS485 Modbus protocol for easy system integration
- Anti‑interference, anti‑fouling design, low maintenance & long service life
Applications
- Aquaculture: pond farming, industrial RAS and seedling breeding
- Surface water: rivers, lakes, reservoirs and drinking‑water source monitoring
- Sewage treatment: biochemical & aeration tanks for municipal and industrial wastewater plants
- Environmental monitoring: water quality stations and circulating water monitoring equipment
- Compatible with portable handheld meters and online smart controllers
Datasheet
| Parameter | Plastic‑housing DO Sensor | High‑precision 316L SS DO Sensor |
|---|---|---|
| Measuring Range | 0‑20.0 mg/L | 0‑20.0 mg/L |
| Resolution | 0.01 mg/L | 0.01 mg/L |
| DO Accuracy | ±0.4 mg/L | ±0.2 mg/L |
| Response Time | 60 s | T90 ≤40 s |
| Temperature Accuracy | ±0.5℃ | ±0.5℃ |
| Repeatability | ≤0.4 mg/L | ≤0.2 mg/L |
| Housing Material | Engineering Plastic | 316L Stainless Steel |
| Ingress Protection | IP68 (Probe) | IP68 (Probe) |
| Operating Temp | −20 – 50 °C | −20 – 50 °C |
| Calibration | Single‑point / Two‑point | Single‑point / Two‑point |
| Communication | RS485 / Modbus | RS485 / Modbus |
| Weight | 150 g | 220 g |
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