Features: It is a series resistor inside capacitor, using 100kHz to remove the impedance 1/(2*pi*F*C). The impedance become small, and we can then measure the true series resistor value. Using this theory, we 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 result we can use it as in circuit test. During repairing TV, LCD, o board, etc. we 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. Equipped with a SMD alligator clip for more accurately testing. Copper plating on the surface, which is anti-corrosion and oxidation resistance. Specifications: Type: Capacitor Tester Color: Black Size: As picture show Range Accuracy (After zero, Refresh Time(Manual Mode) Tested with 1,10,100R Auto mode take 0 to 2s, Test need more time depends on capacitance value (As below): 0.000 to 1.000R 1%+2Digit & 65374;0.4s 1.000 to 10.00R 1%+1Digit & 65374;0.4s 10.00 to 100.0R 2%+1Digit & 65374;0.4s Accuracy: Up to 1% (detail on above table) Wide Measurement Range: >1uF High Resolution: 4 digit, or 0.001Ohm @ 1 Ω range Measuring voltage: 80 Hours Package Included: 1 x Capacitor Tester 2 x Test Clips 1 x User Manual