ZWQ-DO1 Dissolved Oxygen Sensor
ZWQ-DO1
The ZWQ-DO1 measures dissolved oxygen from 0-20 mg/L with ±0.1 mg/L accuracy using a fluorescence measurement principle that needs no initial calibration and no electrolyte. It responds in under 45 seconds and communicates over RS485 Modbus RTU. MetSensor UK supplies the ZWQ-DO1 in the UK as part of the Zata IoT sensor range.
- ✓ Fluorescence-based dissolved oxygen measurement
- ✓ No initial calibration or electrolyte required
- ✓ POM housing with 3-metre integral cable
- ✓ Response time under 45 seconds
- ✓ RS485 Modbus RTU output
Specifications
| Measuring principle | Fluorescence |
|---|---|
| Measure range | 0-20 mg/L |
| Resolution | 0.01 mg/L |
| Accuracy | ±0.1 mg/L |
| Response time | <45 seconds |
| Interface | RS485 (Modbus RTU) |
| Power supply | DC 12/24V |
| Material | POM |
| Electrode cable length | 3m |
| Electrode dimensions | D34mm x L205mm |
| Calibration | No initial calibration needed; no electrolyte required |
| Measure resolution | 0.01 mg/L |
| Electrode dimension | D34mm x L205mm |
| Power | DC12/24V |
Applications
- Surface water monitoring
- Groundwater monitoring
Frequently asked questions
Does the ZWQ-DO1 need calibration before use?+
No. It uses fluorescence measurement, which does not require initial calibration or electrolyte, unlike older Clark-cell dissolved oxygen sensors.
What is the measurement range?+
0-20 mg/L, with ±0.1 mg/L accuracy and 0.01 mg/L resolution.
How fast does the sensor respond?+
Under 45 seconds.
What housing material is used?+
POM plastic, with a 3-metre integral cable.
