SEM-S120 non-contact road state sensor adopts remote sensing technology to avoid road damage and traffic interference caused by the installation of road meteorological station. Multispectral measurement technology can accurately detect the presence and thickness of ice, snow and water on the road surface, as well as real-time monitoring of heavy fog, rain, snow and other weather phenomena that affect traffic safety.
SEM-S120 non-contact road state sensor adopts remote sensing technology to avoid road damage and traffic interference caused by the installation of road meteorological station. Multispectral measurement technology can accurately detect the presence and thickness of ice, snow and water on the road surface, as well as real-time monitoring of heavy fog, rain, snow and other weather phenomena that affect traffic safety.
| Detection distance and detection area diameter | 2-8 meters；23cm | |
| Installation angle to horizontal direction | 30-80° | |
| Power supply | 12-24VDC; 2W | |
| Working Environment | Temperature：-40 ºC to +60 ºC; Humidity:0 to 95% | |
| Identifiable Road State | Dry,moist,wet,snow,ice,mixture of ice and water | |
| Thickness of water film* | 0~10mm | |
| Thickness of ice layer* | 0~2mm | |
| Thickness of snow* | 0~2mm | |
| Level of grip* | 0.01 (slippery) -0.82 (strong friction) | |
| Road surface temperature* | Measure Range:-40-60℃, Accuracy:±1% or ±1℃ | |
| Applicable Road | Concrete, Asphalt | |
| Communication Interface | RS485,RS232 | |
| Protocol | MODBUS-RTU or active ASCII output | |
| Remark | * is optional functions | |
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