The 380580 is a battery-powered milliohm meter. This milliohm meter has a high accuracy and resolution, is battery-powered for field usage, has four terminal Kelvin readings, and is protected against over-temperature and over-voltage. CE certified. Comes with 8 AA batteries and two sets of test leads (4 wire with four alligator clips and 4 wire with two Kelvin alligator clips).