Furnish and install new ESS sites where required by WisDOT. Each unit shall consist of one remote processor unit (RPU or data logger). Each unit shall include sufficient ports, and analog and digital drivers to fully support and correctly interpret all of the following types of sensors, including the brands/models specified, and the quantity on-site: • One air temperature and relative humidity sensor (Item 3.1.12) • One mechanical/ultrasonic wind speed and direction sensor (Item 3.1.13) • One precipitation/visibility sensor (3.1.11) • Up to four cabled surface temperature and condition sensors (Item 3.1.7) • Up to 2 non-intrusive road temperature and condition sensors (Item 3.1.8) • One subsurface sensor or subsurface temperature array (Item 3.1.9) • One pan-tilt-zoom camera...
