The XT560B Digital Milliohmmeter is ideal for reliable, accurate, low-resistance measurements using the standard 4-wire Kelvin technique. The XT560B Digital Milliohmmeter is a dedicated, fully automatic instrument that selects the optimal test current, from 100nA to 100mA DC to accurately measure resistances from 10?? to 33M?. The XT560B will auto range between 9 ranges, or can be manually set to a fixed range.