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 Iii All In One Instrument

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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€ 472.50

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Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Test like a pro, never miss a sparkle!

ULTRA FINE PROBE - Industry’s thinnest 0.6mm retractable probe tip for testing gems as small as 0.02ct
ALL IN ONE PRECISION - World’s first tester for both colorless diamonds and moissanites in a single device
ERGONOMIC PORTABLE - Rubberized anti-slip grip with lightweight design and carrying case for on-the-go professionals
RELIABLE SUPPORTED - Easy calibration with dedicated seller support ensures consistent, trustworthy results
CRYSTAL CLEAR DISPLAY - 180-degree multi-view LED screen for effortless reading by right or left-handed users

The Presidium Multi Tester III (PMuT III) is the ultimate handheld instrument designed for jewelry professionals and enthusiasts alike. It uniquely combines diamond and moissanite testing in one sleek device, featuring the industry’s thinnest 0.6mm retractable probe tip for pinpoint accuracy on gems as small as 0.02ct. Powered by 3 AAA batteries and housed in an ergonomic, anti-slip grip with a 180-degree multi-view LED display, it ensures reliable, easy-to-read results anywhere. Calibration support guarantees precision, making it an indispensable tool for anyone serious about gemstone verification.

Specifications

ASIN	B004QYR8U6
Best Sellers Rank	#79,861 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #26 in Jewelry Diamond Testers
Customer Reviews	3.7 3.7 out of 5 stars (409)
Department	womens
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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