Pico Technology Premium Probes are designed to be used with PicoScope Oscilloscopes, PicoLog Data Loggers, and all major brands of oscilloscopes and multimeters. The TA189 is a 30A high-precision current probe is for applications requiring current measurement without the need to disconnect wiring. It uses closed-loop Hall effect technology to measure both AC and DC current with high stability over long periods of time. The TA167 is a dual-range current probe capable of measuring AC and DC current signals from 200A up to 2000A. This probe offers output sensitivity of 10mV/A / 1mV/A and a frequency range of DC to 20kHz (-1dB). Both of these Pico Technology Premium Probes include a 2m coax cable terminated with a BNC safety connector and are powered by a 9V alkaline battery (PP3, MN1604, or IEC 6LR61).