AEI-DT020 Dual Threshold ESD Monitor   Genaral Info Installation Operation NMH Hub     Standard version         Snap Version   Size (h.w.d): 1"x 2.4" x 2.3" Mounting Velcro (supplied)/optional bracket Operator High Fault Condition = Greater than 10 Meg Ohm - Red = Fault   Low Fault Condition = Less than 750K - Yellow = Fault Bench mat Fault Condition = Greater than 10 Meg Ohm Power 115 VAC, 60 Hz Power Pack Visual Alarm Dual Color LED Indicators: Green = Safe , Red = Fault or Yellow = Fault Audio Alarm Piezo Buzzer Operation Automatic, Unit is activated when operator plugs wrist strap connector into jack. Installation AEI-DT020 Installation and Test (PDF)