Snow sensor BOSO II

Features Road surface temperature measurement. Active detection of freezing point within 2°C below current pavement temperature. Pavement condition : dry, moist, wet, black ice, frost. Salt factor on the pavement (salt concentration). Pavement status alarms (calculated). Excellent resistance to mechanical stress and chemical agents. The active BOSO II (BOden SOnde) has been developed to be installed in the pavement. It measures the road surface temperature by means of a PT100 sensor, as well as the electrical properties of the aqueous solution covering the pavement. These parameters allows the evaluation of the salt concentration of this solution. Besides, the BOSO II sensor is equipped with an active element allowing to cool down a part of the sensor surface by 2°C below the current pavement temperature. The creation of ice on this cooled area allows to detect an icing danger with great accuracy, independently from the type of thawing agent used, and especially before it happens on the pavement. This sensor can be used jointly with the type pavement sensor ARCTIS (which effectively measures the freezing point temperature), allowing then to determine accurately the remaining factor of salt on the pavement.