F405 AC/DC TRMS Clampmeter. The F405 clampmeter is designed for medium-power low-voltage applications in sectors such as LV electricity production and distribution, industry, railways This clamp multimeter is also suitable for lift/elevator technicians and other lifting and transport specialists The applications for the clamp multimeter are maintenance, testing, monitoring, diagnostics and connection Equipped with a fast 12-bit TRMS digital acquisition system The large backlit display makes it easy to read in all circumstances Automatic AC/DC detection AC and DC voltage up to 1000 V W/VA/var and PF power values THD-f and THD-r Resistance and audible continuity Analysis of Min, Max and Peak± on all functions Relative and differential measurements TrueInrush current measurement Phase rotation IP54 protection