| Display | LCD size : 29 mm x 28 mm. Dual function LCD |
| Circuit | Custom one-chip of microprocessor LSI circuit. |
| Sensor Structure | The polarographic type oxygen probe with an incorporated Temp. sensor. |
| Temp. Compensation | 0 to 50 ,°C * Automatic adjustment |
| Recall | Records Maximum, Minimum readings with recal |
| Power off | Auto power off saves battery life, or manual off by push button. |
| Data Hold | Freeze the display reading. |
| Operating Humidity | Less than 80% RH. |