Extech 38389 is an Autoranging with Capacitance and Temperature functions with True RMS measurements With Peak Hold captures in-rush currents.
Extech 38389 600A True RMS Clamp Meter is a traditional Clamp-on multimeter that features: Autoranging with Capacitance and Temperature functions; AC/DC Current readings with resolution of 0.1A; Peak Hold; Data hold, Auto power off.
Data Hold To freeze the LCD meter reading, press the data hold button. The data hold button is located on the left side of the meter (top button). While data hold is active, the DH display icon appears on the LCD. Press the data hold button again to return to normal operation.
Peak Hold To hold the highest reading on the LCD, press the peak hold button. The peak hold button is located on the left side of the meter (bottom button). The meter reading will not change as readings change, rather it will only display the highest reading encountered since the peak hold button was pressed. Press the peak hold button again to return to normal operation.