---
product_id: 316491826
title: "MESR-100 V2 Auto Ranging in Circuit ESR LCR Meter Capacitor/Low Ohm Meter Up to 0.01 to 100R, Support in Circuit Testing"
brand: "signstek"
price: "₱10855"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/316491826-mesr-100-v2-auto-ranging-in-circuit-esr-lcr-meter
store_origin: PH
region: Philippines
---

# 100kHz sine wave for precise ESR 0.001Ω high resolution accuracy 80+ hours battery life with AA & USB MESR-100 V2 Auto Ranging in Circuit ESR LCR Meter Capacitor/Low Ohm Meter Up to 0.01 to 100R, Support in Circuit Testing

**Brand:** signstek
**Price:** ₱10855
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose like a pro, fix with confidence!

## Quick Answers

- **What is this?** MESR-100 V2 Auto Ranging in Circuit ESR LCR Meter Capacitor/Low Ohm Meter Up to 0.01 to 100R, Support in Circuit Testing by signstek
- **How much does it cost?** ₱10855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/316491826-mesr-100-v2-auto-ranging-in-circuit-esr-lcr-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

- • **Smart LCD Display:** 128x64 dot matrix screen auto-references capacitor health with embedded 25V capacitor table.
- • **Ultra-High Resolution:** Detects resistance changes as low as 0.001Ω, ensuring you never miss a faulty capacitor.
- • **Safe In-Circuit Testing:** Low voltage (<40mV RMS) testing prevents semiconductor activation, perfect for delicate electronics repair.
- • **Ergonomic & Portable Design:** Curved plastic case with 60° stand and dual power options (AA batteries + USB) for on-the-go pros.
- • **Precision at 100kHz Sine Wave:** Eliminates noise with sine wave testing for ultra-accurate ESR readings in-circuit.

## Overview

The Signstek MESR-100 V2 is a cutting-edge auto-ranging ESR LCR meter designed for in-circuit capacitor and low ohm testing. Featuring a 100kHz sine wave signal, ultra-high 0.001Ω resolution, and a smart LCD with embedded capacitor health references, it empowers professionals to quickly identify faulty capacitors without circuit removal. Its ergonomic design, dual power options (AA batteries and USB), and safe low-voltage testing make it an indispensable tool for electronics repair and maintenance.

## Description

Signstek MESR-100 V2 Auto Ranging in Circuit ESR LCR Meter Capacitor/Low Ohm Meter Up to 0.01 to 100R, Support in Circuit Testing

## Features

- manufacturer: Signstek
- Item Trademark: SIGNSTEK
- Item Category: Electric Circuit Testing Device

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Signstek |
| Part number | US-171024-02 |
| Item Weight | 227 g |
| Package Dimensions | 16.89 x 9.5 x 4.9 cm; 226.8 g |
| Item model number | US-171024-02 |
| Style | Modern |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Signstek
- **Power source:** Battery Powered
- **Style:** Modern
- **Item weight:** 0.5 Pounds
- **Min. Operating voltage:** 15 Millivolts

## Images

![MESR-100 V2 Auto Ranging in Circuit ESR LCR Meter Capacitor/Low Ohm Meter Up to 0.01 to 100R, Support in Circuit Testing - 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.

## Frequently Bought Together

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-23*