The SCS CTC065-RT-WW Ground Master Ground Monitor w/Relay Closure Interface & Universal Power Supply continuously monitors for proper grounding connection of up to 8 tools and a possible of 16 tools with another monitor. This monitor has individual status indication lights and shows which tool is being monitored, which one is ok, and which one has failed. It also features enabling switches for each ground connection that allows for accurate and safe indications. The CTC065-RT-WW has individual easily-replaceable fuses to prevent dangerous voltages from mis-wiring other equipement. In additional to all those it also features monitoring of EMI on each ground, which will assist in diagnostics of lockups and malfunctions.