Is there a way to confirm it's v2 with sine wave and not v1?

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.

can this meter perform a leak test on motor start capacitors?

No. This meter is for one test only - ESR of a capacitor. It does not perform any other tests.

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"

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)

what is better about v2 (version 2) of this MESR-100 meter for the extra $10 it costs over the original version?

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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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

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

Product ID: 316491826

Details

Brand
Signstek
Colour
black
Item weight
0.5 Pounds
Power source
Battery
Style
Modern

⚡100kHz sine wave for precise ESR

📊0.001Ω high resolution

🔋80+ hrs battery life with AA & USB

R2923

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Description

🔧 Diagnose like a pro — never let a faulty capacitor slip past your repair bench!

ERGONOMIC PORTABLE DESIGN - Curved plastic case with 60° stand makes handheld use and desktop testing effortless.
INTUITIVE DOT MATRIX DISPLAY - Large 128x64 LCD with embedded capacitor reference table for instant good/bad diagnostics.
ULTRA HIGH RESOLUTION READINGS - Detects resistance down to 0.001 ohm, revealing hidden faults standard meters miss.
LONG LASTING CONVENIENT POWER - Runs on 2 AA batteries or USB power for uninterrupted bench work anywhere.
PRECISION ESR TESTING AT 100 K HZ - Sine wave signal reduces noise for ultra-accurate capacitor health checks in-circuit.

The Signstek MESR-100 V2 is a professional-grade auto-ranging ESR LCR meter designed for in-circuit capacitor and low-ohm testing. Utilizing a 100kHz sine wave signal, it delivers precise ESR measurements with 0.001Ω resolution, enabling quick identification of failing capacitors without desoldering. Featuring a clear 128x64 dot matrix LCD with built-in capacitor reference data, it supports extended 80+ hour operation on AA batteries or USB power. Its ergonomic design and simple operation make it an essential tool for electronics repair professionals and enthusiasts aiming to troubleshoot and validate components efficiently.

Specifications

ASIN	B00GYSFOM6
Best Sellers Rank	#90,799 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Ohmmeters
Brand	Signstek
Brand Name	Signstek
Color	black
Colour	black
Customer Reviews	4.4 out of 5 stars 686 Reviews
Item Weight	227 g
Item weight	227 g
Manufacturer	Signstek
Maximum Operating Voltage	100 Volts
Measurement Type	LCR Meter
Min. Operating voltage	15 Millivolts
Minimum Operating Voltage	15 Millivolts
Model	US-171024-02
Part Number	US-171024-02
Power Source	Battery Powered
Power source	Battery Powered
Specification Met	IEC 61010-1
Style	Modern
Style Name	Modern
UPC	710219731090
Unit Count	1 Count

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R2923

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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