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 Meter Capacitor Tester/Low Ohm Meter Up to 0.01 to 100R, Support in Measuring Capacitance Resistance Circuit

Product ID: 4478349

Details

Brand
Signstek
Color
Black
Item Weight
0.5 Pounds
Power Source
Battery
Style
Circuit

⚡0.01 to 100Ω ultra-low resistance range

🔄Auto-ranging for seamless measurement

🔧Dual terminal for quick capacitor/resistor testing

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€ 133.17

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Diagnose Like a Pro, Test Like a Boss!

EFFORTLESS AUTO RANGING - Automatically adjusts measurement range so you never miss a detail.
COMPACT BATTERY POWERED - Lightweight and portable for on-the-go professionals who demand reliability.
SPEEDY DUAL TERMINAL DESIGN - Quickly inspect capacitors and resistors without fumbling with connections.
PRECISION AT YOUR FINGERTIPS - Measure ESR and low ohm values from 0.01 to 100Ω with unmatched accuracy.
INSTANT REFERENCE WITH PRINTED ESR TABLE - Compare readings on the spot for faster diagnostics and repairs.

The Signstek MESR-100 V2 is a compact, battery-powered ESR and low ohm meter designed for precise in-circuit testing of capacitors and resistors. Featuring auto-ranging capabilities and a dual terminal setup, it measures resistance from 0.01 to 100Ω with quick, reliable results, making it an essential tool for electronics professionals and enthusiasts alike.

Specifications

ASIN	B00GYSFOM6
Best Sellers Rank	#27,272 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Capacitance Meters
Brand Name	Signstek
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (722)
Item Weight	0.5 Pounds
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	1.0 Count

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