The 853
Air Hose Vehicle Detector is a low-cost, easy-to-install vehicle
detection alternative for low-traffic applications. Simply attach the
10-foot air hose to the air switch enclosure at one end, lay the hose
across the driving lane and fasten the hose detector at the other end.
The air pressure switch is packaged in a weather-resistant metal housing
that can be mounted to a flat surface.
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