The A621 is a 2000A AC Current Probe/BNC for DMMs and oscilloscopes. This industrial-style clamp-on probe has a BNC connector and may be used with a shrouded banana plug adapter so it can be used on digital multimeters, TekMeter and scopes. It can measure AC currents from 100mA to 2000A peak over a frequency range of 5Hz to 50kHz.