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

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€ 288.16

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Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Test like a pro, spot the sparkle before anyone else!

ULTRA FINE PROBE - Industry’s thinnest 0.6mm retractable tip for pinpoint accuracy on stones as small as 0.02ct
ALL IN ONE PRECISION - The only tester combining diamond & moissanite detection in one sleek device
ERGONOMIC PORTABLE - Rubberized anti-slip grip with lightweight design and handy carrying case for on-the-go pros
DUAL ANGLE LED DISPLAY - 180° multi-viewing screen ensures clear readings for both right and left-handed users
BATTERY POWERED FREEDOM - Runs on 3 AAA batteries—no cords, no hassle, just instant testing anywhere

The Presidium Multi Tester III (PMuT III) is a cutting-edge handheld instrument designed for professional and enthusiast gem testers. It uniquely combines diamond and moissanite detection with an ultra-thin 0.6mm retractable probe tip, enabling precise testing of even the smallest colorless stones down to 0.02 carats. Featuring an ergonomic anti-slip grip and a 180-degree multi-view LED display, it offers ease of use for both right and left-handed users. Powered by 3 AAA batteries, it delivers portable, reliable gemstone identification in a compact form factor.

Specifications

ASIN	B004QYR8U6
Batteries required	No
Best Sellers Rank	#67,268 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #22 in Jewelry Diamond Testers
Customer Reviews	3.7 3.7 out of 5 stars (398)
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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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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