Bside ESR Capacitance Capacitor Tester Resistance Meter Inductance Multimeter USB Power Supply / DC 5V Dual Mode Power Supply: 9V/6F22 battery or USB power supply (universal DC5V power adapter) Dual Mode Test Frequency: Testing the component parameters with 3K/72K Hz signals at the same time Plug-in component test by the input on the main board, SMD component test by metal socket Power on/off, function switch and Auto range by only one switch button, easy use, fast test speed Dual dispaly angle