| Working Method: | Automatic Patrol | |
| Alarm Level: | two levels' alarm. Users can set it. | |
| Input signal: | 4-20mA | |
| Measurement Accuracy: | 0.1%(F.S) | |
| Stability: | Zero drift: | ≤±2% (F.S)/6h |
| Span drift: | ≤±5% (F.S)/6h | |
| Communication Interface: | RS485 | |
| Working Voltage: | AC 220V/50-60Hz | |
| Capacity of System: | 4, 8 or 16 Channels | |
| Display Method: | Multi-passage concentration real-time display | |
| Display Error: | <0.5% | |
| Ambient Humidity: | 10%-90% RH (non-condensing) | |
| Ambient Temperature: | 0-70ºC | |
| Weight: | 3.0kgs | |