| Model | 8403E |
| DO Measuring Range | 0~199.9 (in %) |
| DO Accuracy | ±3% F.S (in %) |
| DO Resolution | 0.1% (in %) |
| DO Measuring Range | 0~19.99 (ppm/L or mg/L) |
| DO Accuracy | ±1.5% F.S (ppm/L or mg/L) |
| DO Resolution | 0.01 (ppm/L or mg/L) |
| Temperature Measuring Range | 0~50.0℃ |
| Temperature Accuracy | ±0.3℃ |
| Temperature Resolution | 0.1℃ |
| Manual Compensation | Included |
| Salinity Adjustable Range | 0.0~50.0 ppt |
| Salinity Resolution | 0.1 ppt |
| Barometric Pressure Adjustable Range | 500~1499 mmHg/66.6~199.9 Kpa |
| Barometric Pressure Resolution | 1 mmHg/0.1 Kpa |
| Semi permeable membrane coefficient | Adjustable |
| Memory | 99 Points |
| IrDA Port | Included（It requires AZ-9680 Or AZ-9660 ) |
| Real Time | Included |
| LCD Size | 44(L)*26 (W) mm |
| Operating Temperature | 0~50℃ |
| Operating RH% | Humidity <80% |
| Storage Temperature | 0~60℃ |
| Storage RH% | Humidity <90% |
| Sensor Life Time | >6 months (with good maintenance) |
| Meter Size | 170(L) * 70(W) * 33(H) mm |
| Weight | ~150g |
| Battery | 4*1.5V AAA Battery |
| Standard Package | Meter, Dissolve Oxygen (D.O.) Probe Manual, Carry Case, Semi permeable membrane electrolyte accessories |
