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MESR-100 ESR Capacitance Ohm Meter Professional Measuring Capacitance Resistance Capacitor Circuit Tester

MESR-100 ESR Capacitance Ohm Meter Professional Measuring Capacitance Resistance Capacitor Circuit Tester

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This MESR-100 V2 auto-ranging capacitor ESR and low Ohm meter measuring range from 0.001 to 100.0R, support in circuit testing. Using true 100 KHz sine wave to measure the ESR value, which is equal to the testing method of capacitor manufacturer.

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, Audio board, etc. we can in circuit testing the capacitor is good or not.
Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check. 

Color: Black
Range         Accuracy(After zero,     Refresh Time(Manual Mode) 
            tested with 1,10,100R    Auto mode take 0 to 2s, more time 
            resistor)            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 Range: >1uF
High Resolution: 4 digit, or 0.001Ohm @ 1 Ω range
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


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Customer Reviews

Average Rating:


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  • By kari saari

    February 23, 2017

    With this meter you can quite easily measure electrolytic capacitors also in circuit. It gives quite nice information about electrolytic capacitors in circuit so, that you can determine and find bad capacitors from circuit without taking it out. That makes things much easier, when you are trying to find bad electrolytic capacitors from power supply and other circuits. When you find suspicious capacitor you can take it out from circuit and test it again to be sure that is it faulty or not. Great meter!

    Is this helpful? (0) (0)

  • By v***i

    September 23, 2016

    Excellent product and very good for work

    Is this helpful? (21) (0)

  • By m***1

    December 12, 2017

    as described

    Is this helpful? (0) (0)

  • By g***l

    December 6, 2017

    Good purchace, quick delivery. Thankyou.

    Is this helpful? (0) (0)

  • By V***r

    December 6, 2017

    Great to deal with.

    Is this helpful? (0) (0)

  • By g***1

    November 29, 2017

    Very good item, fast service - Thanks!

    Is this helpful? (0) (0)

  • By n***8

    November 27, 2017

    Detects dud capacitors easily,very handy meter

    Is this helpful? (0) (0)

  • By p***n

    November 21, 2017

    FULL 5**** Excellent cooperation !!! Quick shipping, Highly recommended. Big THX

    Is this helpful? (0) (0)

  • By a***t

    November 11, 2017

    It seems that it works well. Has nothing to compare with.

    Is this helpful? (0) (0)

  • By s***3

    November 6, 2017

    Good communication. Fast delivery. Thank you!

    Is this helpful? (0) (0)

  • By a***2

    October 31, 2017

    Got it fast, works great.

    Is this helpful? (0) (0)

  • By e***5

    October 28, 2017

    A must have tool, Very useful, Big time saver. Great company to do buisness with

    Is this helpful? (0) (0)

  • By h***1

    October 26, 2017

    Item working good, shipping costs were great, received item well before expected

    Is this helpful? (0) (0)

  • By s***6

    October 14, 2017

    Item was exactly as described. Perfect A+++

    Is this helpful? (0) (0)

  • By k***b

    September 21, 2017

    Super smooth transaction!! Highly recommend to all!!! A+++++++++++++++++++++++++

    Is this helpful? (0) (0)

  • By b***e

    September 14, 2017

    Accurate description and prompt delivery. Thanks again.

    Is this helpful? (0) (0)

  • By e***e

    September 4, 2017

    very good product and service from seller

    Is this helpful? (0) (0)

  • By p***s

    September 4, 2017

    thanks!, 100%!!!!, perfect transaction!, A+++ Seller!,

    Is this helpful? (0) (0)

  • By s***l

    June 28, 2017


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  • By d***l

    May 11, 2017

    Shipped from China so it takes a while to get. New this up front.

    Is this helpful? (0) (0)

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