Optical SensorsTL-DO Series
Dissolved Oxygen Sensor
Optical Sensors
Dissolved Oxygen Sensor
TL-DO Series
Fluorescence optical DO sensor. Maintenance-free, 0–20 mg/L range, IP68, RS485 output.
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The TL-DO Series uses fluorescence optical measurement for maintenance-free dissolved oxygen monitoring. Unlike traditional polarographic sensors, the optical principle requires no electrolyte replacement and has minimal drift over time. Ideal for aeration basin control and aquaculture.
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement Principle | Fluorescence optical |
| DO Range | 0–20 mg/L |
| Saturation Range | 0–200% |
| Accuracy | ±0.1 mg/L |
| Resolution | 0.01 mg/L |
| Temperature Range | 0–50°C |
| Pressure | 0–2 Bar |
| Signal Output | RS485 Modbus RTU / 4-20mA |
| Power Supply | 12–24 VDC |
| Protection | IP68 |
| Material | POM / SS316L |
Key Features
- Fluorescence optical principle — no electrolyte required
- Minimal drift — long calibration intervals
- Built-in temperature and salinity compensation
- Suitable for continuous immersion
Typical Applications
Aeration basin controlAquacultureRiver/lake monitoringWastewater treatmentBiological treatment processes
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