---
product_id: 355682688
title: "Signstek MESR-100 V2 Auto Ranging in Circuit ESR Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit"
brand: "signstek"
price: "KD 54.26"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/355682688-signstek-mesr-100-v2-auto-ranging-in-circuit-esr-meter
store_origin: KW
region: Kuwait
---

# 100kHz true square wave ESR testing 0.01 to 100Ω auto-ranging precision 0.3s fast refresh time Signstek MESR-100 V2 Auto Ranging in Circuit ESR Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit

**Brand:** signstek
**Price:** KD 54.26
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose Like a Pro, Repair Like a Boss!

## Quick Answers

- **What is this?** Signstek MESR-100 V2 Auto Ranging in Circuit ESR Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit by signstek
- **How much does it cost?** KD 54.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/355682688-signstek-mesr-100-v2-auto-ranging-in-circuit-esr-meter)

## Best For

- signstek enthusiasts

## Why This Product

- Trusted signstek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision at 100kHz Testing:** Utilizes a true 100kHz square wave for ESR measurement, matching capacitor manufacturer standards for unmatched accuracy.
- • **Ergonomic Dual Terminal Design:** Dual test probes and a printed ESR reference table streamline inspections, making your diagnostics both fast and foolproof.
- • **Auto-Ranging for Effortless Use:** Automatically adjusts measurement range from 0.01 to 100Ω, delivering quick and reliable readings without manual calibration.
- • **Seamless In-Circuit Diagnostics:** Test capacitors and resistors directly in-circuit with ultra-low 15mV test voltage, ensuring no interference with sensitive components.
- • **Rapid Results to Keep You Moving:** Experience near-instantaneous 0.3-second refresh rates, empowering fast troubleshooting and repair workflows.

## Overview

The Signstek MESR-100 V2 is a battery-powered, auto-ranging ESR and low ohm meter designed for professional in-circuit testing of capacitors and resistors. Featuring a true 100kHz square wave measurement method, it delivers precise ESR readings from 0.01 to 100Ω with rapid 0.3-second refresh times. Its low 15mV test voltage ensures safe diagnostics without activating semiconductors, making it ideal for fast, reliable troubleshooting of TVs, LCDs, audio boards, and more.

## Description

Signstek MESR-100 V2 Auto Ranging in Circuit ESR Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit

## Features

- Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check
- Wide Measurement Range
- Auto-ranging capacitor ESR and Low Ohm Meter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Signstek |
| Power Source | Battery Powered |
| Style | Impedance |
| Colour | Black |
| Item Weight | 227 g |
| Min. Operating Voltage | 15 Millivolts |
| Specification Met | CE |
| Measurement Type | LCR Meter, Ohmmeter |
| Maximum Operating Voltage | 5 Volts |
| UPC | 710219731090 |
| Manufacturer | Signstek |
| Country of Origin | USA |
| Model number | US-171024-02 |
| Number of Memory Sticks | 1 |
| Package Dimensions | 16.61 x 9.4 x 4.9 cm; 226.8 g |
| Item model number | US-171024-02 |
| Are batteries included? | No |

## Product Details

- **Brand:** Signstek
- **Power Source:** Battery Powered
- **Style:** Impedance
- **Colour:** Black
- **Item Weight:** 227 g

## Images

![Signstek MESR-100 V2 Auto Ranging in Circuit ESR Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit - Image 1](https://m.media-amazon.com/images/I/61i9HAWQHGL.jpg)

## Questions & Answers

**Q: Is there a way to confirm it's v2 with sine wave and not v1?**
A: In the description on my order it is listed as V2. On a scope, with the meter open circuit, the test waveform is a rounded square wave. When connected to a 100 ohm resistor, the waveform is more of a triangle wave. When connected to a capacitor, it is somewhere between a triangle and a sine wave.

**Q: can this meter perform a leak test on motor start capacitors?**
A: No. This meter is for one test only - ESR of a capacitor. It does not perform any other tests.

**Q: Values in 35v and higher columns decrease as you go down, columns for 10,16,25v decrease, then go back up.  is this a typo?  hint: look for ".12"**
A: Better to use on of the ESR charts you can find online, not the one printed on the case (whether it's right or wrong)

**Q: what is better about v2 (version 2) of this MESR-100 meter for the extra $10 it costs over the original version?**
A: Compare MESR100 old V1 and new V2 Improvement: For an extra $10 I would get version 2 which is what I have now.

1)      Change square wave to sine wave 100 KHz, reduce square wave’s high frequency component, and affect the reading passing the test leads and capacitor.
2)      Higher Resolution up to 0.001 ohm.
3)      128X64 dot matrix LCD, with more larger value display and information
4)      Embedded 25V capacitor table at LCD, auto display the capacitor is good or bad reference to common 25V electrolytic capacitor.
5)      New plastic case, curve design for hand carrying. New stand for 60 degree stand on desk.
6)      Use 2X AA battery, more convenience and longer battery life than 9V battery.
7)      Support external USB power, using standard micro-USB port.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-03*