In summary, the SCS 724 is a single workstation monitor that continuously monitors two operator dual-wire wrist straps and one worksurface mat. Installation and set-up of the SCS 724 is easy and straight forward, all hardware is included. A visual and audible alarm on the SCS 724 alerts the operator of a faulty operator and/or worksurface connection. The SCS 724 has an adjustable operator test voltage and upper limit.