Features: Testing of twisted pair cables for open circuits, shorts, crossed pairs, reversed pairs, and split pairs Easy to read fault display Tone generator for tracing installed cables hidden in walls, floors, and ceilings Shield integrity testing Special designed remote unit that enables one person testing of installed cables Small remote unit that slides into master unit for convenient and safe storage Automatic sleep mode and power switch for decrease power consumption Low battery LED Includes: MicroMapper and MicroMapper Remote, patch cable, user guide, and carry case.