Its this a meghometer?

Yes, the product is a meghometer.

When checking a 3 phase motor how does one hook up to the leads?

You would have to test each phase (wire) individually, as a megger is meant to test one single conductor at a time. The (E) lead is your ground and your (L) lead is attached to the conductor you would like to test. Any reading other than basically zero resistance is usually bad.

So how does this differ from the more $$ fluke and megger brands? i have a fluke 87 but need to test insul on some 1/0 wiring i pulled in my house.

It doesn't doesn't come with the name recognition (and MSRP) of Fluke, nor does it come with the same build quality, overall performance or certifications of the name brands. If you need a meter like this for every day professional use go with a name brand. For occasional use by hobbyists / DIY'ers / homeowners, this one will do the job.

just purchased and obtained 8 AA batteries. The last slot for 2 batteries has no contacts on the end? So it should only need 6 batteries?

Correct. The same outer case is used for different types of meters that might need the extra contacts and more batteries. Just a cost saving measure for the manufacturer.

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LEAGY VAD78 Digital Insulation Resistance Tester - Accurate Megohm Meter for DC/AC Voltage Testing (20-1500V, 20-750V) and Resistance Measurement (0-5000 Megohms)

LEAGY VAD78 Digital Insulation Resistance Tester - Accurate Megohm Meter for DC/AC Voltage Testing (20-1500V, 20-750V) and Resistance Measurement (0-5000 Megohms)

Product ID: 18881614

Details

Brand
LEAGY
Color
Black
Item Weight
1.4 pounds
Power Source
Battery
Style
Digital

⚡20-1500V DC & 20-750V AC range

📊0-5000 MΩ ultra-wide resistance range

🔋Dual power: battery & 12V adapter

₩192958

Duties & taxes included

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

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Description

⚡ Empower Your Electrical Expertise with LEAGY VAD78 – Precision Meets Portability!

SAFETY FIRST SMART ALERTS - Audible high-voltage alarms and auto power-off after 15 minutes keep you safe and extend battery life.
CRYSTAL CLEAR BACKLIT DISPLAY - Large, high-def LCD with backlight ensures you never miss a reading—even in dim or dark environments.
ERGONOMIC READY FOR FIELDWORK - Strap design for hands-free operation, perfect for busy professionals managing complex electrical systems.
POWER FLEXIBILITY FOR ON THE GO PROS - Operate seamlessly on batteries or plug into a 12V adapter—no downtime, no limits.
PRECISION VOLTAGE RESISTANCE MASTERY - Test with confidence across 20-1500V DC and 20-750V AC, plus resistance up to 5GΩ for flawless diagnostics.

The LEAGY VAD78 Digital Insulation Resistance Tester is a professional-grade megohm meter designed for accurate DC/AC voltage testing (20-1500V DC, 20-750V AC) and insulation resistance measurement up to 5000 MΩ. Featuring a large backlit LCD, dual power options (battery and 12V adapter), and smart safety functions like audible alarms and auto shutoff, it’s engineered for reliable, efficient electrical maintenance and troubleshooting in diverse environments.

Specifications

ASIN	B00O14LDKW
Best Sellers Rank	#381,536 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Insulation Resistance Meters
Brand Name	LEAGY
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (352)
Item Dimensions	4.1 x 2.8 x 6.5 inches
Item Weight	1.4 pounds
Manufacturer	LEAGY
Measurement Type	Ohmmeter
Minimum Operating Voltage	50 volts
Model	VAD78
Number of Items	1
Part Number	VAD78
Power Source	Battery Powered
Specification Met	CE
Style Name	Digital
UPC	705554036757 798167982467
Unit Count	1 Count
Upper Temperature Rating	40 °C

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