Please note, this item ships from an international seller. Expected delivery is 10-15 days. This MESR-100 auto-ranging capacitor ESR and low Ohm meter measuring from 0.001 to 100.0R, support in circuit testing. Using true 100 KHz sine to measure the ESR value, which is equal to the testing method of capacitor manufacturer. Features: It is a series resistor inside capacitor, using 100kHz to remove the impedance 1/(2*pi*F*C). The impedance become small, and can then measure the true series resistor value. Using this theory, can measure the capacitor is bad/ damaged or good in condition. Our ESR meter only applies less than 15mV DC or peak to peak on a good capacitor, as a can use it as in circuit test. During repairing TV, LCD, Audio board, etc. can in circuit testing the capacitor is good or not. Dual terminal, for fast and easy inspect internal resistance of the capacitor, a printed ESR table for fast check. Note: The Capacitance Meter is used for testing the internal resistance of the capacitor, not for testing capacitance value. Specifications: Color: Black Accuracy (After , tested with 1,10,100R resistor) Refresh Time(Manual Mode) Auto mode take 0 to 2s, more time depends on capacitance value. 0.000 to 1.000R 1%+2Digit ～0.4s 1.000 to 10.00R 1%+1Digit ～0.4s 10.00 to 100.0R 2%+1Digit ～0.4s Accuracy: Up to 1% (detail on above table) Wide Measurement : >1uF High Resolution: 4 digit, or 0.001Ohm @ 1 Ω Measuring voltage: <～40mV RMS (TESTING VOLTAGE) External Power: 5V micro USB Operating Current: 0.02A Battery: 2 * AA 1.5V Battery (not included) Battery Life time: >80 Hours Item Size: Approx 14.5 * 8 * 3cm / 5.7 * 3.1 * 1.2in Item Weight: Approx 139.6g / 4.9oz Package Size: Approx 17 * 9 * 5cm / 6.7 * 3.5 * 2.0in Package Weight: Approx 218g / 7.7oz Package List: 1 * Capacitance Meter 2 * Test Clips 1 * User Manual