Vehicle Loop Detector

STD002 intelligent vehicle detector is applied in the systems of parking lots, highway toll station and traffic lights controlling. STD002 is mainly used to detect the existing of vehicles and direction detection (counting). When used to detect the existing of vehicles, every loop will provide a group of output signals from an output relay; When used to detect the direction of vehicles, every relay will correspond to an output of direction.
Specification:
Power Supply: AC 220V/ 20mA
Frequency Range: 20 KHz --- 170 KHz
Sensitivity: 3 levels adjustable
Reaction Time: 180mS
Environmental Compensation: Automatic drift compensation
Loop Inductance: Recommended 80uH_300uH (connecting wire included) Max 50uH_500uH (connecting wire included).
Length of Connecting Wire: Max 5 meters, twisted at least 20 times per meter, and total resistance < 10 Ohm.
Storage Temperature: -40 to +85 Centigrade
Operating Temperature: -20 to +65 Centigrade
Relative Humidity: Max 95%
Dimension: 85× 74× 36mm.