Chauvin Arnoux F201 [P01120921] 600A AC/DC TRMS Clamp Meter. Fast, accurate and reliable - a great tool for any professional electrician or contractor. The Chauvin Arnoux F201 is a true RMS AC current clamp; it can test AC current up to 600A. It's also a digital multimeter and can test AC/DC voltage to 1000V, resistance to 59.99kΩ and performs audible continuity and diode tests. Via the use of a type K thermocouple probe, it's also possible to measure temperature from -60 to 1000°C (-76 to 1832°F). Due to it's medium-sized jaws, the F201 can clamp around wires with maximum diameter of 34mm. It can perform standard current measurements and also includes a true Inrush current measurement mode. Additional functions of this clamp meter include a data hold function for storing the value on the screen temporarily and a MIN/MAX mode which will calculate the lowest and highest values taken over a time period. This clamp meter is CAT IV 600V safety rated.