LAQUA DO220
Handheld Dissolved Oxygen/Temperature Meter
The LAQUA DO220 is a robust, high-precision handheld meter designed for accurate measurement of dissolved oxygen (DO) and temperature in laboratory and field applications. Engineered for dependable performance, it delivers fast response times and stable readings—making it ideal for routine and advanced water quality monitoring.
Perfect for environmental professionals, aquaculture operations, wastewater facilities, and research laboratories, the DO220 combines advanced functionality with user-friendly operation.
Key Features of the LAQUA DO220:
- Simultaneous DO & Temperature Measurement
Displays dissolved oxygen concentration and temperature in real time. - High Accuracy & Reliable Performance
Ensures precise, repeatable results across a wide measurement range. - Automatic Temperature Compensation (ATC)
Enhances measurement accuracy under varying environmental conditions. - Salinity & Atmospheric Pressure Compensation
Improves DO accuracy in different water types and altitudes. - Simple Calibration Process
Easy air calibration for quick setup and maintenance. - Clear LCD Display
Large, easy-to-read screen for efficient data monitoring. - Portable & Durable Design
Lightweight yet rugged construction for field and on-site testing. - Energy-Efficient Operation
Battery powered with auto power-off function to extend battery life.
Typical Applications:
✔ Aquaculture & fish farming
✔ Environmental water monitoring
✔ Wastewater treatment plants
✔ Drinking water analysis
✔ Research & educational laboratories
The LAQUA DO220 provides a dependable, high-performance solution for dissolved oxygen testing—offering precision, portability, and professional-grade functionality in one handheld instrument.
| Model | LAQUA DO220
Dissolved Oxygen/Temperature (°C/°F) |
| DO Range | 0.0 to 20.00 mg/L
0.0 to 200.0% |
| Resolution | 0.01 mg/L, 0.1% |
| Accuracy | ± 0.1 mg/L |
| Salinity Compensation | 0.0 to 40.0 ppt |
| Barometric Pressure Compensation | Yes |
| Temperature Compensation | Yes |
| DO Probe Type | Galvanic integrated with temperature sensor |
| Calibration Points | Up to 2 |
| Temperature Range | -30.0 to 130.0 °C / -22.0 to 266.0 °F |
| Resolution | 0.1 °C / °F |
| Accuracy | ± 0.5 °C / ± 0.9 °C |
| Calibration Option | Yes |
| Memory Data | 500 |
| Auto Log Data | Yes |
| Real-time Clock | Yes |
| Date & Time Stamp | Yes |
| Measurement Modes | Auto stable, Auto hold, Real time |
| Auto Shut-Off | Yes (Programmable: up to 30 minutes) |
| Electrode Status | Yes (On screen display) |
| Diagnostic Messages | Yes |
| PC Communication | Yes via PC (USB) cable PN 3200779639 |
| Printer Communication | Yes via Printer (RS232) cable PN 3200779638 |
| Meter Inputs | BNC (for DO electrode), phono (for temperature sensor) |
| Meter Output | phono (for PC/printer connection) |
| Display | Custom LCD with backlight |
| Housing | IP67, shock & scratch resistant, non-slip |
| Power Requirement | 2 x AA batteries |
| Battery Life | > 500 hours |
| Meter Dimensions | 160 (L) x 80 (W) x 40.60 (H) mm |
| Meter Weight | Approx. 260 g (with batteries) / 216 g (without batteries) |





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