Procon Loop Detector The LD100 is a single channel inductive loop detector. The use of microprocessor and surface mount technology enables a large number of functions to be incorporated into a small package. The LD100 is compatible with most single channel detectors on the market and is easy to set-up and install. Typical applications in the parking and access control environments are safety loops, arming loops and entry or exit loops. LD100 Single channel boxed detector 220VAC LD101 Single channel boxed detector 110VAC LD102 Single channel boxed detector 12-24VDC