Apparatus for monitoring compliance with the 100% tied off rule for climbers using personal fall protection equipment. The personal fall protection monitoring system includes a remote monitoring module that monitors multiple harness systems. Each harness system includes sensors that detect the engagement of the lanyard with anchorage points and the harness. The system also includes a harness module that monitors the sensors and indicates an alarm condition to the climber and to the remote monitoring module. The harness module includes a transmitter that communicates with the remote monitoring module. The remote monitoring module communicates with multiple harness systems to indicate and log the status of each harness system.