The active road / runway sensor ARS31 is flush mounted in the pavement and determines the freezing temperature by active cooling and heating of sensor surface.
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Passive road sensor IRS31 is flush-mounted in the road. The two part housing design allows the combined sensor / electronics unit to be removed for maintenance or calibration at ...
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The NIRS31 is a non-invasive road weather sensor with optical principle. It is mounted several meters above the surface at bridges or masts.
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Road / Runway Surface Temperature Probe is designed for surface ground temperature measurements.
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