UEB LCR-T4 ESR Meter Transistor Tester Diode Triode Capacitance SCR Inductance Automatic test the pin of a component, and display on the 128 * 64 LCD backlight. Measuring bipolar transistor current amplification factor and base-emitter threshold voltage. Powered by 9V layer-built battery, can use 2 li-ion batteries to form a 8.4V battery pack for long time power. Testing Speed: 2 seconds (1 minute is normal for large capacitor) Displayed Value: 25pf-100mF (resolution 1pF)