The 724MO is a workstation monitor designed to continuously monitor the operation of two wrist strap grounding systems and one worksurface mat, meeting ANSI/ESD S20.20 requirements. It features dual operator monitoring with selectable test voltages (9 VDC or 16 VDC) and resistance limits (10 Megohms or 35 Megohms), employing a DC current source to measure loop electrical resistance through the wristband, skin contact, and wrist cord. The monitor includes status LEDs for each operator (green pass indicators, red fail-high, and yellow fail-low indicators), a worksurface mat fail indicator, and configurable audible alarms with different tones for each operator. This product is ideal for ESD-sensitive manufacturing environments where continuous verification of operator grounding and worksurface integrity is critical to prevent electrostatic discharge damage to sensitive components.