RFA-4018-20 RF Industries Uniadapt Cable Tester to detect open and short faults in coaxial cable assemblies. The Unidapt universal connector system that allows testing virtually any connector with the attachment of the adapters from the Unidapt adapter kits. The LED front panel indicates Pass or Fail with a simple red light, green light. The tester saves time by indicating whether the failure is due to a short, open conductor or open shield. The RFA-4018-20 is powered by a 9volt battery. It is lightweight, small, and completely portable for remote site use.