Power line EMI adapter for measuring EMI on live power lines and ground.  Blocks 50/60Hz AC mains' voltage and provides galvanic separation between input and output, allowing for safe measurements of EMI on live power up to 250VAC.  Switch between differential and common modes measurements.  This model ships with the cable with U.S.-type NEMA5-15 plug, BNC cable and a 50 Ohms terminator.