| Item | Specification | |||
| Soiling ratio (SR) range | 100 – 0 % | |||
| Output | RS485 | |||
| Communication | Modbus-RTU | |||
| Accuracy | ± 0.1 of reading ± 1% (after local dust calibration) | |||
| Supply | 12-24V | |||
| Measuring frequency | once a minute | |||
| Operating temperature |
-40℃-+70℃ |
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| Cable length | power line: not included, communication line: 20m | |||
| Ingress protection | IP65 | |||
| Storage condition | 10℃-60℃@20%-90%RH | |||