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 ESR Meter, Capacitor Tester/Low Ohm Meter 0.01R-100R | Auto Ranging in Circuit, Support in Measuring Capacitance Resistance Circuit, 2026 Upgraded Test Clip

Product ID: 4478349

Details

Brand
Signstek
Color
Black
Item Weight
8 ounces
Power Source
Battery
Style
Circuit

⚡0.01Ω-100Ω ultra-precise range

🔄Auto-ranging for seamless testing

🔋2026 upgraded test clip for durability

R2298

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

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Description

⚡ Master your circuits with precision and speed!

COMPACT LIGHTWEIGHT - Weighing just 8 ounces, it’s the perfect portable tool for on-the-go professionals.
EFFORTLESS AUTO RANGING - Automatically adjusts measurement range for quick, hassle-free diagnostics.
UPGRADED 2026 TEST CLIP - Enhanced clip design ensures stable, reliable contact for consistent readings.
PRECISION AT YOUR FINGERTIPS - Measure ESR and low resistance from 0.01Ω to 100Ω with unmatched accuracy.
IN CIRCUIT TESTING MADE SIMPLE - Test capacitors and resistors directly in circuits without removal, saving time and effort.

The Signstek MESR-100 V2 is a top-rated ESR and low ohm meter designed for professional-grade capacitor and resistor testing. Featuring a wide measurement range from 0.01Ω to 100Ω, auto-ranging capability, and a durable 2026 upgraded test clip, it enables fast, accurate in-circuit diagnostics. Lightweight and battery-powered, it’s the essential tool for engineers and technicians aiming to optimize electronic maintenance and troubleshooting.

Specifications

ASIN	B00GYSFOM6
Best Sellers Rank	#25,311 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Capacitance Meters
Brand Name	Signstek
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (726)
Item Weight	8 ounces
Manufacturer	Signstek
Measurement Type	LCR Meter
Minimum Operating Voltage	15 Millivolts
Model	US-171024-02
Part Number	US-171024-02
Power Source	Battery Powered
Style Name	Circuit Testers
UPC	710219731090
Unit Count	1 Count

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R2298

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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TrustScore 4.5 | 7,300+ reviews

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