DO2 Sensor Specifications
| Measurement | |
| Parameters | Dissolved oxygen and temperature |
|---|---|
| Measurement method | Optical fluorescence |
| Dissolved oxygen range | 0–25 ppm |
| Accuracy | ±1% of reading or ±0.02 ppm, whichever is greater |
| Resolution | 0.01 ppm below 4.00 ppm; 0.1 ppm above 4.0 ppm |
| Repeatability | 0.01 ppm |
| Sensor drift | Less than 1% per year |
| Response time | 95% in less than 60 seconds |
| Logging & Communication | |
| Internal memory | More than 260,000 records |
| Logging rate | Up to 8 readings per second |
| Communication | RS-485 Modbus RTU and SDI-12 |
| Software | Aqua4Plus and Aqua4Plus Lite |
| Data file formats | .csv and .a4d |
| Construction & Operating Conditions | |
| Probe diameter | 1.66 in. (4.22 cm); fits in 2-inch wells |
| Tube materials | Acetal with 316 stainless steel or titanium |
| Operating temperature | 0–55°C (32–131°F) |
| Maximum pressure | 100 psi |
| Power requirement | External 9–15 VDC power supply required |
Applications
Monitor dissolved oxygen and temperature over time in environmental and water treatment applications.
Surface Water Monitoring
Track dissolved oxygen trends in rivers, streams, lakes, and reservoirs.
Dam Discharge Monitoring
Measure oxygen conditions in water released downstream of dams.
Aquaculture
Monitor oxygen levels in water supporting fish and other aquatic life.
Water Treatment Facilities
Collect dissolved oxygen data at municipal and industrial treatment sites.
Remediation Monitoring
Observe dissolved oxygen changes while evaluating remediation performance.
Landfill Leachate
Record oxygen conditions as part of a leachate monitoring program.
