Weather sensor RWS-20

The RWS-20 Road Weather Sensor is designed for use in road applications where accurate and reliable visibility measurements are required. Application: Roads and Transport The RWS-20 Road Weather Sensor is designed for use in road applications where accurate and reliable visibility measurements are required. The forward scatter measurement principle and unique design ensure the output is both accurate and reliable in all weather conditions and will not be influenced by local light sources, even flashing signs. The RWS-20 is a key component of any Road Weather Information System (RWIS) and provides the very important data on the visibility that the driver experiences at the carriageway level. Application Any sensors or measurement systems located at the side of the carriageway have to be able to withstand both the dirty and potentially corrosive environmental conditions (salt spray in winter, dirty water spray at other times), but also have to operate largely independently and for extended periods of time as access can often be restricted. The RWS-20 visibility sensor is specifically designed for harsh road-side conditions found around the world. The sensor housing is a very robust aluminium enclosure which is sealed against dirt and water ingress (IP66/67) and designed to withstand the rigours of 24/7 unattended operation. The measurement windows are protected by hoods which are designed to reduce the amount of dirt and external light reaching the optics. The 10m to 7.5km measurement range on the RWS-20 is optimal for use in road applications.