| Model | 8685A |
| pH Measuring Range | 0.0~14.0 |
| pH Accuracy | ±0.2 |
| pH Resolution | 0.1 |
| Temperature Measuring Range | 0~60.0℃ |
| Temperature Accuracy | ±1℃ |
| Temperature Resolution | 0.5℃ |
| ATC | ATC |
| pH Calibration | Up to 3 points |
| LCD Size | 30(L) * 18(W) mm |
| Operating Temperature | 0~50℃ |
| Operating RH% | Humidity <80% |
| Storage Temperature | -10~50℃ |
| Storage RH% | Humidity <90% |
| Sensor Life Time | >6 months (with good maintenance) |
| Meter Size | 165(L) * 35(W) * 32(H) mm |
| Weight | ~115g |
| Battery | LR44 *4 PCS |
| Standard Package | Meter, Batteries, Manual, Paper Box |