how do you calibrate it?

Calibration is not needed as far as I know

Placing on diamonds and having no response, what does that mean?

I have used this unit and had the same response on known diamonds. Sometimes the stone is dirty and needs a cleaning. This can throw off results. Also, my unit is getting returned when I have a suitable replacement. It sometimes takes 3 or more tries to get it to register. Clean the stone and try touching it with a firm but not point grinding pressure a few times and if it doesn't work try another tester. Assuming of course you know the diamond is real.

How can I get a replacement tip?

You can get it replaced from manufacturer, fill out the return form.

Presidium Multi Tester Iii Pmut For Diamond And Moissanite

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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62868 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Test smarter, not harder — the ultimate gem verification tool for pros on the move!

ALL IN ONE PRECISION - World’s first tester for both colorless diamonds and moissanites in a single device—never miss a gem.
ERGONOMIC PORTABLE - Rubberized anti-slip grip with lightweight design and carrying case for effortless, on-the-go testing.
ULTRA FINE PROBE TIP - Industry’s thinnest 0.6mm retractable probe ensures accurate testing even on stones as small as 0.02ct.
DUAL ANGLE LED DISPLAY - 180-degree multi-viewing screen perfect for right or left-handed users—read results clearly anytime.
BATTERY POWERED FREEDOM - Runs on 3 AAA batteries for reliable, cordless operation wherever your expertise takes you.

The Presidium Multi Tester III (PMuT III) is a cutting-edge handheld instrument designed to accurately test colorless diamonds, moissanites, and diamond simulants. Featuring the industry’s thinnest 0.6mm retractable probe tip, a 180-degree LED display for versatile viewing, and powered by 3 AAA batteries, it offers professional-grade precision in a portable, ergonomic package.

Specifications

ASIN	B004QYR8U6
Batteries required	No
Best Sellers Rank	#41,110 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #12 in Jewelry Diamond Testers
Customer Reviews	3.7 3.7 out of 5 stars (407)
Department	womens
Dishwasher compatible	No
Is Discontinued By Manufacturer	No
Item Weight	3.42 ounces
Item model number	PMuT III
Manufacturer	Presidium Instruments LTD
Product Dimensions	3.4 x 2.4 x 8 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Excellent communication throughout the order process. Product is perfect.

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