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The LD140 has been designed as a multipurpose inductive loop vehicle detector for use in parking, access control and traffic applications.
 
The detector is connected to an inductive loop mounted in the road surface. When vehicles pass over the loop the detector switches on an output. The use of microprocessor and surface mount technology enables a large number of functions to be incorporated into a small package. The LD140 is compatible with most single-channel detectors on the market and is easy to set-up and install. The LD140 incorporates a LCD display for showing variables which assist with detector configuration and diagnostics. Typical applications in the parking and access control environments are safety loops for barriers or gates, arming loops for activating card dispensers, entry or exit loops and vehicle counting. Typical applications in the traffic environment are traffic control (traffic lights), toll systems and vehicle counting.