DROK 100105 AC 100-300V 100A Digital Voltage Current Multimeter LCD Volt Amp Meter Gauge Panel Tester Voltage Amperage Dual Display Power Monitor Wide measuring range: AC 80-300v; AC 0 1-100a; high accuracy: 1 percent Small Size (704039mm) and equipped with 15 mm precision current transformer Requires No power supply and small terminal blocks for connections, easy and convenient installation Adopts high quality LCD display and bright Blue back-light, easy to read This meter can be widely used with power distribution box, distribution cabinet, Voltage regulators, teaching aids, household small distribution box etc