They conform to CAT III 1000V/CAT IV 600V safety rating andcerti?ed by CE/ETL. The UT206B, UT207B, and UT208B come with LoZ mode for eliminating ?ghost ?voltage, LPF ACV function for measuring INV and VFD voltage, and inrush current mode for capturing transient current. The? UT208B also features high-precision temperature measurement with 0.1 ?C resolution and can be equipped with a ?exible current probe to extend the AC current measurement range to 3000A.