The microprocessor-based Tabletop Dissolved Oxygen Meter EZL-TDO121 measures dissolved oxygen in mg/L, ppm, or % saturation and has a water-resistant membrane keypad and a simultaneous temperature display. The full-featured instrument has one-button auto calibration, a temperature measurement range of 0 °C to 100 °C, and a DO accuracy of only ± 0.3 %. It also has automatic pressure compensation of 80 kPa to 105 kPa and temperature compensation of 0 °C to 100 °C, which can improve measurement precision.
| Parameters | Concentration, Saturation, Temperature |
| DO Range | 0.00 to 20 mg/L (ppm) |
| Resolution | 0.01/0.1 |
| DO Accuracy | ± 0.3 % |
| DO Saturation | 0.0 to 200 % |
| Saturation Resolution | 0.001 |
| Saturation Accuracy | ± 2.0 % FS |
| Temperature Measuring Range | 0 °C to 100 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ± 0.1 °C |
| Temperature Compensation Range | 0 °C to 100 °C ( Automatic) |
| Salinity Compensation Range | 0.0 to 50.0 g/L |
| Pressure Compensation Range | 80 kPa to 105 kPa (Automatic) |
| Pressure Resolution | 1 |
| Pressure Accuracy | ± 2 % |
| Stability | ± 0.07 mg/L/1h |
| Response Time | ≤ 30 s (25 °C, 90 % Response) |
6.5-inch colour capacitive screen, display all parameters
Long lasting Omron, light touch panel can be used more than 100, 000 times
Auto-calibration, auto-temperature compensation, data storage, USB data export
Auto-stabilization, membrane integrity function, bar code compatibility, and real-time clock
Wireless printing function, self-diagnosis, adjustable screen brightness
Data storage of 500 data sets can be saved and transferable
DO mode have functions of ATC, auto salinity compensation and auto pressure compensation
Polarographic DO electrode can measure temp., salinity and DO
Equipped with DO Electrode calibration sleeve, only need 3-5 minutes of polarization
Combined diaphragm cap, replace sensitive membrane just by screwing new cap
Wireless Bluetooth block
Waterproof and dustproof IP54 housing
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