1. performance ESR tester: MESR100 automatic range capacity ESR and low ohm meter for quick and easy inspection of general purpose capacitors or resistors. Suitable for TV, LCD, audio board repairs and condenser testing. Dual terminal for your convenience. 2. Powerful Test Function precision ESR tester measuring range from 0.001 to 100.0R, supports IN CIRCUIT testing, supports online measurement, can apply DC or peakpeak value of less than 15mV to a good capacitor and measure ESR value with real 100kHz sine wave. 3. Digital ESR meter: large LCD display for quick reading of data, supports USB power supply, DC5V power supply. It is a type of portable liquid crystal display capacity meter, which can be used for digital analysis, capacity selection, unknown capacity measurement, adjustment capacity, cable capacity measurement, etc. 4. Wide application: ESR meter uses a double terminal design that can quickly check the internal resistance of the capacitor, and insert the ESR meter for quick check. The use of a true 100 kHz sine to measure the internal resistance (ESR) of the capacitor corresponds to the capacitor manufacturer's test method.