Does the solution leave a mark on the gold? Thanks for your help.

It does not on real gold, however when testing plated or other metals it will, hope that helps

Does this come with the solution?

It depends on where you buy it. The solution is getting more expensive lately. It used to be less than $20 and now it is close to $27.

Can you test gold bullion and coins with this

Yes both can be tested with the M24, I no longer own my M24 as I sold it and purchased a KEE Gold Tester, check them out as I believe you will like the KEE Gold Tester over the M24 as I prefer it 10 to 1 over the M24.Regards,Terry L. Shookof Carolina Coins and Detectors

What kind of battery?

I bought for a friend. I have the ET18 it uses 9V battery. So maybe this is the same.

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We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

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M24 Mizar Gold Tester

Product ID: 16859000

Details

Brand
RS Mizar
Power Source
Battery
Style
Electronic
Color
['white' 'red'
Item Weight
0.01 Ounces

⚡Automatic shut-off saves power & extends life

💡LED display for instant karat accuracy

🔋Battery operated for true portability

Description

💎 Test like a pro, flex your gold IQ instantly!

ULTRA PORTABLE DESIGN - Compact, battery-powered unit lets you test gold anywhere—no cords, no hassle.
SMART POWER MANAGEMENT - Automatic shut-off and low battery alerts keep you powered up and ready on the go.
MULTI METAL VERSATILITY - Detects yellow, white, green, red gold plus platinum and gold plating distinctions.
PRECISION KARAT DETECTION - Instantly identifies 9K to 24K gold with patented tech for flawless authenticity checks.
MADE IN THE USA WITH WARRANTY - Crafted with trusted quality and backed by a 2-year warranty for peace of mind.

The M24 Mizar Gold Tester is a compact, battery-operated electronic device designed to quickly and accurately determine gold karat values from 9K to 24K. Featuring patented technology and an easy-to-read LED display, it also identifies platinum and distinguishes real gold from plating. With automatic shut-off, low battery indication, and a 2-year warranty, this USA-made tester is perfect for professionals and enthusiasts seeking reliable, on-the-go authenticity verification.

Specifications

ASIN	B001G7OSMW
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#380,064 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #164 in Jewelry Gold Testers
Color	['White', 'Red', 'Yellow', 'Green']
Customer Reviews	3.7 3.7 out of 5 stars (71)
Date First Available	September 17, 2008
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	0.01 ounces
Item model number	M24
Manufacturer	Mizar
Material	plastic
Package Dimensions	7.7 x 4.4 x 2.3 inches
Part Number	ETTES170
Power Source	Battery Powered
Style	Electronic

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