Feature: 1. The measuring frequency is up to 100KHz, and the 1Hz step is continuously adjustable. 2. Support DC resistance, electrolytic capacitance measurement, support screening and deviation measurement. 3. Internal bias voltage output (10mV-500mV). 4. Component measurement is automatically recognized, the basic measurement accuracy is 0.2%, and the measurement speed can be adjusted. 5.2.8 inch TFT display, 4 and a half display. USB communication interface, large capacity lithium battery power supply. Support for the SCPI protocol. 6. Manual and automatic range, with open circuit short correction function. 7. Provide a variety of test terminal, provide system settings, configure the language, buzzer, screen brightness, etc. according to your own requirements. Spec: Model ET430B ET430 Measurement frequency 100Hz, 120Hz, 1KHz, 10KHz 100Hz, 120Hz, 1KHz, 10KHz, 40KHz, 100KHz Accuracy 0.30% 0.30% Display screen 2.8-inch TFT LCD screen Display digits Main parameter: 5 bits, minor parameter: 5 bits Measured parameters Main parameters: L/C/R/Z, minor parameters: X/D/Q/ theta /ESR Electrolytic capacitor model No Yes DCR model No No Measurement range L:0.000μH~2000H, C:0.000pF~20.000mF, R:0.0001Ω~200.00MΩ Measuring display speed 1 time/second (slow), 2 times/second (medium), 4 times